high precision - piezo actuators & components...p-871 picma® multilayer bender actuators, co-fired...

Piezo • Nano • Positioning

Linear Actuators & Motors

Piezo Actuators & ComponentsFor Motion Control, Sensing, Energy Harvesting

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Selection Guide: Piezo Actuators & Components

Models Description Dynamics* Push/Pull Travel [μm] Voltage Sensor PageForce [N] Range

Great Variety: Flexure Guided, Preloaded, Stacks, Tubes, Benders, Shear Actuators

P-601 Closed-loop, with flexure guidance ●●❍❍❍ 30 / 10 110, 300, 400 -20 to 120 SGS 1-68

P-855.20 Piezo tip for micrometer ●●●●❍ 100 / 5 20 -20 to 120 – 1-73

Piezo Actuators OverviewPI piezo actuators are designedto combine ultra-high perform-ance with long lifetime in indus-trial and scientific applications.PI's piezo ceramic design andmanufacturing division, PI Cera-

mic, provides the capability andflexibility to offer highly engi-neered custom sub-assembliesat a very attractive price. Thepatented PICMA® multilayerlong-life piezo actuators with co-fired ceramic insulation provide

more than 10 times higher serv-ice life than conventional actua-tors. Integrated position feed-back sensors are available forhigh linearity applications inclosed-loop operation. All lineardrives are intended for integra-

tion into a customer’s systemand feature no guidance. If off-axis motion cannot be toleratedexternal guidance is required.

P-810–P-830 Only 6 mm diameter, ferromagnetic end pieces ●●●❍❍ / ●●●●❍ 50 / 1 15, 30, 45 -20 to 120 – 1-70

P-820 Smallest preloaded piezo translator ●●❍❍❍ 50 / 10 15, 30, 45 -20 to 120 – 1-72

P-840, P-841 Preloaded, optional ball tip ●●●●❍ 1000 / 50 15, 30, 45, 60, 90 -20 to 120 SGS 1-74

P-842, P-843 Preloaded, optional ball tip, optional water-proof case ●●●●❍ 800 / 300, 15, 30, 45, 60, 90 -20–120 SGS 1-76P-844, P-845 3000 / 700

P-212, P-216 Preloaded, long travel ranges, very high forces ●●●●● 2000 / 300, 15 to 120, 0 to 1000 SGS 1-78P-225, P-235 4500 / 500 15 to 180 1-80

PL022, /033, /055 PICMA® Chip. Smallest multilayer piezo actuators, from 2x2x2 mm ●●●●● to 1000 / 5 3 -20 to 120 – 1-92

P-882–P-888 PICMA® multilayer stacks, ceramic encapsulation, extreme lifetime ●●●●● to 4000 / 20 5, 9, 15, 30 -20 to 120 – 1-82

P-871 PICMA® multilayer bender actuators, co-fired ceramic encapsulation, ●●●●❍ 1 / 1 160 to 1600 ±30 SGS 1-84low operating voltage, with position sensors

P-601 Closed-loop,flexure guided, long travel

P-855.20 Piezo tip formicrometer

P-810 – P-830 Small(6 mm diam.) actuators

P-820 Smallest preloadedpiezo actuators

P-840 – P-841 Preloadedactuators with optional ball tips

P-842 – P-842 Preloaded, opt.water-proof case

P-212, P-216, P-225, P-235 Highforce, preloaded, long travel

PL022, PL033, PL055 Multilayerminiature chip actuators

P-882 – P-888 Multilayerstacks, extreme lifetime

P-871, PL122-PL144 PICMA®

multilayer bender actuatorsP-876 Piezoelectric patchtransducers

P-007–P-056 Stack piezoactuators. Version xxP foreven higher dynamics

PL112–PL140 PICMA® multilayer bender actuators, co-fired ceramic encapsulation, ●●●●❍ 1 / 1 500, 900, 2000 ±30 – 1-94low operating voltage, open-loop

P-876 DuraAct™ piezoelectric patch transducers: sensor, ●●●●❍ to 775 – var. – 1-96actuator & electrical charge generation

P-007–P-056 PICA™ Stack piezo actuators, wide variety, high-force capacity. ●●●●● to 80000 / 5 to 300 0 to 1000 Opt. 1-86P-010–P-056.xxP 300 1-88

P-010, P-016, PICA™ Thru ring actuators combine the advantages of piezo tubes ●●●●● to 60000 / 5 to 300 0 to 1000 Opt. 1-90P-025.xxH with the high forces of stack actuators 250

PT120–PT140 PT-Tube piezo tube actuators, minimum tolerances ●●●●❍ 0,1 / 0,1 4, 6, 8 0 to 1000 – 1-100

P-111–P-151 PICA™ Shear shear-effect actuator: Compact, X, XY, XYZ, ●●●●● 10 to 300 1 to 10x10x10 ±250 – 1-98e. g. for scanning-microscopy, optional clear aperture

*Relative to products in this class

P-010.xxH, P-016.xxH, P-025.xxHPICA™ Thru ring actuators

PT120 PT-Tube piezo tubeactuators

P-111 – P-151 Shear-effectactuator: Up to 3 axes, fast

Options and Accessories see p. 1-102 ff

More Piezo Actuators and Piezo Motors: See p. 1-3 ff & 1-23 ff

Please follow the mounting guidelines on p. 1-67

Notes on Specifications see p. 1-106 ff

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DC-Servo & Stepper Actuators

Piezo Actuators & Components

PiezoWalk® Motors / Actuators

PILine® Ultrasonic Motors

Nanopositioning / Piezoelectrics


Unpackaged Stack Actuators

Guided / Preloaded Actuators

Nanometrology

Micropositioning

Patches /Benders/Tubes /Shear..

Index

Piezoelectric Actuators and Components

Advantages of PI PiezoelectricActuators:

� Sub-Nanometer resolution

� Large force generation(up to 50,000 N and more)

� Microsecond-rangeresponse

� No backlash, stiction orfriction

� Immune to magnetic fields

� Extremely low steady-statepower consumption

� No wear and tear

� Vacuum and clean-roomcompatibility

� Operation at cryogenictemperatures possible

PICMA® piezoelectric actuators

Piezoelectric translators aresolid-state ceramic actuatorswhich convert electrical energydirectly into linear motion(mechanical energy) with virtu-ally unlimited resolution.

Variety of piezoceramic stacks Piezo ceramic components: rings, plates, tubes

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High-Force Piezo Systems

The long-established and suc-cessful high-force / high-volt-age piezo system product linehas been improved and com-pletely reworked. All high-volt-age piezo actuators now makeexclusive use of the modernPICA™ Power piezo ceramics.For high dynamics applica-tions, the integrated preloadand low electric power require-ments of the packaged PICA™Power actuators is a specialadvantage.

Quality and SelectionPI offers a comprehensive as-sortment of high-resolutionpiezoelectric actuators anddrives for industrial and scien-tific applications. In addition tothe hundreds of models pre-

sented in this catalog, PI canalso deliver custom designs.All manufacturing steps fromthe PZT powder to the finishedproduct are controlled by PI.PI’s proprietary PICMA® tech-nology with ceramic encapsu-

lation stands for high reliabilityand longer lifetime. Closed-loop piezo actuators and thecorresponding control elec-tronics are offered for higherlinearity.

Piezo-Electric All-Rounder—DuraAct™ Patch Tranducers

The laminated patch transduc-ers are suitable both for actua-tor and sensor tasks in variousfields such as adaptronics.Even in high-dynamics applica-tions, the rugged designensures reliability, high resist-ance to damage and a lifetimewell over 109 cycles.

� High-dynamics actuators� Adaptive systems� Vibration and noise cancel-

lation� Deformation control and

stabilization� Structural health monitoring� Energy harvesting

Applied directly to a substrate, or used as part of the structure itself,DuraAct™ patch tranducers can detect and produce vibrations or

contour deformations at the source, inside the structure

Piezoelectric Actuators and Components

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Nanometrology

Micropositioning


Index

PI has 4 decades of experiencewith piezo ceramic actuators inmotion control applications inindustry and research. CurrentlyPI employs more than 100 peo-

ple fully dedicated to piezo cera-mic research, development andproduction. Extensive know-how and the most modernequipment make for the unique

flexibility and worldwide lead-ership in piezo matters.PI piezo actuators not onlyshow an optimal combinationof travel and stiffness, but arealso designed for maximumlifetime under actual operatingconditions in industrial envi-ronments.

Maximum lifetime means high-est possible reliability. PI’s award-winning, patented PICMA® actua-tors are based upon the newesttechnology which reduces thefailure rate by a factor 10 com-pared to conventionally designedmultilayer actuators.

Long Term Tests Prove DCReliability

PI’s monolithic ceramic-encap-sulated design provides betterhumidity protection than con-ventional polymer-film insula-tion. Diffusion of water mole-cules into the insulation layer isgreatly reduced by the use ofco-fired, outer ceramic encap-sulation (fig. 2). Humidity is themain influence on the long-term reliability in low-dynamicsor quasi-static operation mo-des, where the piezo actuator issupplied with a DC voltage tomaintain a position for a longtime.

Comparative tests with bothPICMA® and conventional mul-tilayer piezo actuators haveproven the positive effects ofthe ceramic encapsulation.While polymer-coated piezostypically only survive 30 daysof continuous operation - PIC-MA® actuators are still workingafter more than 4 years!

PICMA® award-winning multilayer piezo actuatorsfeature full-ceramic insulation

PICMA® piezo actua-tors (lower curve)

compared with poly-mer-insulated multi-

layer piezo actua-tors. PICMA® actua-tors are insensitiveto high humidity inthis test. In conven-tional actuators, the

leakage currentbegins to rise afteronly a few hours—

an indication ofdegradation of the

insulation andreduced lifetime.

Full-Ceramic Encapsulation & Patented Design

PICMA® Piezo Actuators—Extreme Lifetime, for IndustrialReliability Requirements

Results of an accel-erated DC-lifetime-

test of PICMA® actu-ators compared to

conventional actua-tors (100 V DC,

room temperature,90 % R.H.). Theexpected MTTF(Mean Time To

Failure) for PICMA®

is 80 years (700 000hrs of continuous

operation). All of thepolymer-insulated

samples have failedafter 1,600 hrs

(MTTF 805 hrs = 1month)

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the maximum voltage range(>105 V) with an operating fre-quency up to 1000 Hz. After onemonth of continuous operationthere were no degradations inpiezo performance to be meas-ured, neither mechanic con-cerning the displacement, norelectrical concerning electricalcapacitance or resonant fre-quency. (Dr. Bosotti et al.,University of Milano, Italy,2005)

Large Operating TemperatureRange , Optimum UHVCompatibility - MinimumOutgassingAnother advantage of fullyceramic-encapsulation PICMA®

AC tests were performed for 4.0 x 109 cycles at 8 samples PICMA® 5x5x18 using a116 Hz-sine wave excitation (1.0 x 107 cycles per day) at a unipolar operating voltage of100 V, 15 MPa preload. Control measurements were taken every 109 cycles. There was

no significant decrease in displacement.

Continuous DynamicOperation

Here, the well-known lifetime-limiting factors of conventionaldesigns are humidity, crack for-mation inside the ceramic lead-ing to rising leakage currentsand delamination of electrodesunder extreme dynamic condi-tions.

PI reduces the cracking proba-bility by a special patenteddesign where segmented slotstake care of excessive tensionalstresses. Furthermore, the spe-cial electrode design ensuresexcellent, stable, electric con-tact even after billions ofcycles.

PICMA® multilayer piezo actua-tors show no significant de-crease in displacement evenafter many billions of cycles.

Long-Term Test underCryogenic Conditions

To suit an application requiring10 years minimum lifetimeunder cryogenic conditions,accelerated lifetime tests withPICMA® piezo actuators havebeen successfully performed.Inserted in a cryogenic bath ofliquid nitrogen (75 K), the piezois placed in a vacuum chamber(2 • 10-3 mbar) and subjected todynamic operation at 90 % of

PICMA® Piezo Actuators

actuators is the extended oper-ating temperature range, up to150 °C, a huge improvementover the 80 °C limit commonfor other, polymer-insulated,monolithic actuators. The heatgeneration in dynamic opera-tion is proportional to the oper-ating frequency. Thus, a higheroperating temperature allowsfor higher operating frequen-cies and duty cycles. Addi-tionally, the lack of polymerinsulation and the high Curietemperature make for optimalultra-high-vacuum compatibili-ty (no outgassing / high bake-out temperatures, up to 150 °C).

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Nanometrology

Micropositioning


Index

Mounting and Handling Guidelines

Adherence to the followingguidelines will help you obtainmaximum performance andlifetime from your piezo actu-ators: Do not use metal toolsfor actuator handling. Do notscratch the coating on the sidesurfaces. The following precau-tions are recommended duringhandling of piezoelectric actua-tors:

I. Piezoelectric stack actuatorswithout axial preload aresensitive to pulling forces. Apreload of up to 50% of theblocking force is generallyrecommended.

II. Piezoelectric stack actuatorsmay be stressed in the axialdirection only. The appliedforce must be centered verywell. Tilting and shearingforces, which can also be in-duced by parallelism errorsof the endplates, have to beavoided because they willdamage the actuator. Thiscan be ensured by the useof ball tips, flexible tips, ade-quate guiding mechanismsetc. An exception to thisrequirement is made for thePICA™Shear actuators, be-cause they operate in theshear direction.

III. Piezoelectric stack actuatorscan be mounted by gluingthem between even metalor ceramic surfaces by acold or hot curing epoxy,respectively. Ground sur-faces are preferred. Please,do not exceed the specifiedworking temperature rangeof the actuator during curing.

IV. The environment of all actu-ators should be as dry aspossible. PICMA® actuatorsare guarded against humidi-ty by their ceramic coating.Other actuators must be pro-tected by other measures(hermetic sealing, dry airflow, etc).

The combination of long-term high electric DC fieldsand high relative humidityvalues should be avoidedwith all piezoelectric actua-tors.

V. It is important to shortcir-cuit the piezoelectric stackactuators during any hand-ling operation. Temperaturechanges and load changeswill induce charges on thestack electrodes whichmight result in high electricfields if the leads are notshorted: Should the stackbecome charged, rapid dis-charging—especially with-out a preload—might dam-age the stack. Use a resistorfor discharging.

VI. Prevent any contaminationof the piezo ceramic sur-faces with conductive orcorrosive substances. Iso-propanol is recommendedfor cleaning. Avoid acetoneand excessive ultrasoniccleaning at higher tempera-tures.

No pulling force without preload

No lateral force or torque

Ball tips or flexures to decouple lateral forces orbending forces

Ball tips or flexures to decouple bending forces

Bolting between plates is not recommended

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The flexure-guided, lever-am-plified PiezoMove™ P-601 ac-tuators provide large verticaltravel ranges up to 400 μm, fastresponse and high positioningaccuracy in a very small pack-age. With settling times of only

a few milliseconds and a reso-lution in the sub-nanometerrange they are well suited forboth static and dynamic appli-cations.

P-601 PiezoMove™ lever-am-plified actuators cover therange between direct-drivenpreloaded piezo translators,such as the P-840 series (seep. 1-74) and single-axis nano-positioning stages, like theP-611 series (see p. 2-20).Compared to direct-drivenpiezo translators, lever-ampli-fied actuators offer larger travelranges and much higher lateralstiffness and guiding precision.Compared to single-axis nano-positioning stages, they offersignificantly smaller sizes.PiezoMove™ lever-amplifiedactuators feature a resolutionto 0.2 nm and a repeatabilityto 8 nm.

OEM Actuator with IntegratedGuidance

With their highly precise, fric-tionless flexure guidance, avery high stiffness and excel-lent straightness of motion areachieved. Together with theirsmall dimensions and the cost-effective design, the P-601lever amplified actuators areespecially suited for OEMapplications. Versions withstrain-gauge sensors (SGS) areequipped with a full bridgecircuit that is insensitive tothermal drift. Versions withoutsensors are also available foropen-loop applications such asin high-speed switches andpumps. In addition to the stan-dard steel models, special invarand non-magnetic versions areavailable on request.

Ceramic Insulated PiezoActuators Provide LongLifetime

Highest possible reliability isassured by the use of award-winning PICMA® multilayerpiezo actuators. PICMA® actua-tors are the only actuators onthe market with ceramic-onlyinsulation, which makes themresistant to ambient humidityand leakage-current failures.They are thus far superior toconventional actuators in relia-bility and lifetime.

Ordering Information

P-601.1SPiezoMove™ OEM Flexure-Guided,Lever-Amplified Actuator, 100 μm,SGS-Sensor



P-601.1SLPiezoMove™ OEM Flexure-Guided,Lever-Amplified Actuator, 100 μm,SGS-Sensor, LEMO Connector



P-601.10PiezoMove™ OEM Flexure-Guided,Lever-Amplified Actuator, 100 μm,Open-Loop



Flexure-Guided OEM Piezo Actuator with Long Stroke to 400 μm

P-601 PiezoMove™ Z-Actuator

Application Example

� Nanopositioning

� Imaging

� High-speed switching

� Patch clamp

� Micro-dispensing

� Semiconductor testing

� Adaptronics / Automation

� Photonics / integratedoptics

� Biotechnology

PiezoMove™ Lever-amplified piezo actuators of the P-601 series

� Flexure Guidance for Frictionless, Ultra-Straight Motion� Travel Ranges to 400 μm� Resolution to 0.2 nm� High Dynamics and Stiffness� Custom Designs with Longer Travel or Faster Response and

Non-Magnetic Versions Feasible

� Outstanding Lifetime Due to PICMA® Piezo Actuators� Choice of Closed-Loop and Open-Loop Models� Ideal OEM Actuator for Precision Motion Control in Optics,

Medical, Biotech and Microfluidics Applications

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Nanometrology

Micropositioning


Index

P-601 dimensions in mm

Technical Data

Model P-601.1S P-601.3S P-601.4S P-601.x0 Units ToleranceP-601.1SL P-601.3SL P-601.4SL Open-loop versions

Active axes Z Z Z Z

Motion and positioning

Integrated sensor SGS SGS SGS –

Open-loop travel, -20 to +120 V 100 250 400 as P-601.xS μm min. (+20 %/-0 %)

Closed-loop travel 100 250 400 – μm calibrated

Open-loop resolution 0.2 0.3 0.4 as P-601.xS nm typ.

Closed-loop resolution 2 6 12 – nm typ.

Linearity, closed-loop 0.1 0.3 0.3 – % typ.

Repeatability 8 10 30 – nm typ.

Runout θX, θY 20 / 10 20 / 10 20 / 10 as P-601.xS μrad typ.Mechanical properties

Stiffness in motion direction 0.8 0.38 0.28 as P-601.xS N/μm ±20 %

Unloaded resonant frequency 750 440 350 as P-601.xS Hz ±20 %

Resonant frequency @ 30 g 620 350 290 as P-601.xS Hz ±20 %

Push/pull force capacity 30/10 20/10 15/10 as P-601.xS N Max.in motion direction

Lateral force 30 30 30 as P-601.xS N Max.

Drive properties

Ceramic type PICMA® P-885 PICMA® P-885 PICMA® P-885 as P-601.xS

Electrical capacitance 1.5 3.1 4.6 as P-601.xS μF ±20 %

Dynamic operating current coefficient 1.9 1.6 1.4 as P-601.xS μA/(Hz•μm) ±20 %

Miscellaneous

Operating temperature range -20 to 80 -20 to 80 -20 to 80 -20 to 80 °C

Material Stainless steel Stainless steel Stainless steel Stainless steel

Mass without cables 0.05 0.08 0.11 as P-601.xS kg ±5 %

Cable length S-version: 0.3 S-version: 0.3 S-version: 0.3 0.3 m ±10 mmSL-version: 1.5 SL-version: 1.5 SL-version: 1.5

Sensor / voltage connection S-version: S-version: S-version: Open leadsopen leads open leads open leads (no sensor)SL-version: SL-version: SL-version:LEMO LEMO LEMO

Recommended controller / amplifierE-610 controller / amplifier (p. 2-110), E-625 bench-top controller (p. 2-114)

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For Light and Medium Loads

P-810 · P-830 Piezo Actuators

P-810 & P- 830 piezo actuators

The P-810 and P-830 seriestranslators are high-resolutionlinear actuators for static anddynamic applications. Theyprovide sub-millisecond res-ponse and sub-nanometerresolution.

Design

These actuators consist of ahighly reliable monolithicmultilayer piezoceramic stackprotected by a stainless steelcase. PI offers a variety of pre-loaded translators for applica-tions involving higher tensileloads (see the “SelectionGuide” on p. 1-62).


Highest possible reliability isassured by the use of award-winning PICMA® multilayerpiezo actuators. PICMA® actua-tors are the only actuators on

the market with ceramic-onlyinsulation, which makes themresistant to ambient humidityand leakage-current failures.They are thus far superior toconventional actuators in relia-bility and lifetime.

Mounting

Attachment is realized via theferromagnetic end surfaces,with epoxy or magnets.Read details in Mounting andHandling Guidelines (p. 1-67).For extensions, adapter cablesand connectors, see “Acces-sories” (p. 1-104 ff ).

Piezo Drivers, Controllers &Amplifiers

High-resolution amplifiers andservo-control electronics, bothdigital and analog, aredescribed in the “Piezo Drivers /Servo Controllers” section (seep. 2-99 ff ).

� Outstanding Lifetime Due to PICMA® Piezo Ceramics� Travel Range to 60 μm� Pushing Forces to 1000 N� Pulling Forces to 5 N� Sub-Millisecond Response� Sub-Nanometer Resolution

Application Examples

� Static and dynamic preci-sion positioning

� Fiber positioning

� Laser tuning

� Patch-Clamp

� Nanotechnology

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1-71










Nanometrology

Micropositioning


Index

P-810 dimensions in mm. Two 0.1 m long teflon insulatedpigtails. Length L: see table. Max. torque at top piece: 0.08 Nm.

P-830 dimensions in mm. Two 0.1 m long teflon insulatedpigtails. Length L: see table. Max. torque at top piece: 0.2 Nm.

Technical Data and Product Order Numbers

Order Travel *Resolution **Static Push- / Electrical Dynamic operating Resonant Mass Length Lnumber range for [nm] large-signal pull force capacitance current coefficient frequency [g] ±5 % [mm] ±0.3

0 to 100 V stiffness capacity [μF] ±20 % [μA / (Hz • μm)] (unloaded)[μm] ±20 % [N/μm] ±20 % [N] [kHz] ±20 %

P-810.10 15 0.15 14 50 / 1 0.3 3.0 22 4 20

P-810.20 30 0.3 7 50 / 1 0.7 3.0 15 6 38

P-810.30 45 0.45 4 50 / 1 1.0 3.0 12 8 56

P-830.10 15 0.15 57 1000 / 5 1.5 12.5 23 10 22

P-830.20 30 0.3 27 1000 / 5 3.0 12.5 14 16 40

P-830.30 45 0.45 19 1000 / 5 4.5 12.5 10 21 58

P-830.40 60 0.6 15 1000 / 5 6.0 12.5 8.5 27 76

*The resolution of piezo actuators is not limited by stiction or friction. Value given is noise equivalent motion with E-503 amplifier p. 2-144**Dynamic small-signal stiffness is ~ 30 % higher. Operating temperature range: -20 to 120° C. Case: non-magnetic steel; end pieces: stainless steel. Recommended preload for dynamic

operation: 10–20 MPa.Recommended amplifiers / controllersOne channel: E-831 amplifier (p. 2-164), E-610 amplifier / controller (p. 2-110)Multi-channel: E-663 amplifier (p. 2-136)

PTFE PTFE

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The P-820 series piezo transla-tors are high resolution linearactuators for static and dynam-ic applications. They providesub-millisecond response andsub-nanometer resolution.

Design

These actuators consist of afriction-free, preloaded mono-lithic piezo ceramic stack inte-grated in a stainless steel hous-ing.


Highest possible reliability isassured by the use of award-

winning PICMA® multilayerpiezo actuators. PICMA® actua-tors are the only actuators onthe market with ceramic-onlyinsulation, which makes themresistant to ambient humidityand leakage-current failures.They are thus far superior to

conventional actuators in relia-bility and lifetime.

Mounting

Mounting is at the foot, withpush/pull forces of less than3 N, the actuator can be held byclamping the case. The option-al ball tip (P-820.95) is intendedto decouple torque and off-cen-ter forces from the piezoceramic. The magnetic adapterP-176.30 is to be glued onto thetop piece in order to providemagnetic coupling.Read details in Mounting andHandling Guidelines (p. 1-67).

Factory Installed Options

P-820.95 Ball Tip

Accessories

P-176Magnetic Adapter (see p. 1-103)For extensions, adapter cablesand connectors, see “Acces-sories” in the piezo electronicschapter (see p. 1-168 ff ).


High-resolution amplifiers andservo-control electronics, bothdigital and analog, are des-

cribed in the “Piezo Drivers /Servo Controllers” (see p.2-99 ff ) section.

For Light and Medium Loads

P-820 Preloaded Piezo Actuators

� Outstanding Lifetime Due to PICMA® Piezo Actuators� Travel Range to 45 μm� Pushing Forces to 50 N� Pulling Forces to 10 N� Sub-Millisecond Response� Sub-Nanometer Resolution� Optional Ball Tip

P-820.10 and P-820.30 piezo actuators


� Static and dynamic preci-sion positioning


� Laser tuning

� Nanotechnology


P-820.10Preloaded Piezo Actuator, 15 μmTravel range



Technical Data

Model P-820.10 P-820.20 P-820.30 Units

Displacement at 0 to 100 V 15 30 45 μm ±20 %

*Resolution 0.15 0.3 0.45 nm

**Static large-signal stiffness 13 7 4 N/μm μm ±20 %

Push/pull force capacity 50 / 10 50 / 10 50 / 10 N

Max. torque limit (on tip) 0.08 0.08 0.08 Nm

Electrical capacitance 0.3 0.7 1.0 μF μm ±20 %

Dynamic operating current coefficient (DOCC) 3.0 3.0 3.0 μA / (Hz • μm)

Unloaded resonant frequency fo 22 15 12 kHz μm μm ±20 %

Operating temperature -20 to +80 -20 to +80 -20 to +80 °C

Voltage connection VL VL VL

Mass 8 11 14 g ±5 %

Material: case, end pieces N-S N-S N-S

Length L 26 44 62 mm ±0.3

*The resolution of piezo actuators is not limited by stiction or friction. Value given is noise equivalent motion with E-503 amplifier(p. 2-146)

**Dynamic small-signal stiffness is ~ 30 % higherRecommended amplifiers / controllersOne channel: E-610 controller / amplifier (p. 2-110)Modular system E-500 (p. 2-142) with amplifier module E-503 (multi-channel) (p. 2-146)Multi-channel: E-663 amplifier (p. 2-136)

P-820 dimensions in mm.Length L: see table

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Nanometrology

Micropositioning


Index

P-855 piezo translators arehigh-resolution linear actuatorsspecially designed for integra-tion in micrometer tips. They fitthe M-227 DC-Mike motorizedactuators (see p. 1-42), theM-168 Stepper Mike (seep. 1-55) motorized actuatorsand the M-631 to M-633 manu-al micrometers (see p. 1-56).

The piezo translators consist ofa monolithic PICMA® piezoceramic integrated in a stain-less steel housing.

P-855 actuators provide sub-millisecond response and sub-nanometer resolution.

Superior Lifetime withCeramic-Encapsulated Piezos

Highest possible reliability isassured by the use of award-winning PICMA® multilayerpiezo actuators. PICMA® actua-tors are the only ceramic-encapsulated PZT actuators onthe market, which makes themresistant to ambient humidityand leakage-current failures.They are thus far superior toconventional actuators in relia-bility and lifetime.

Accessories

Extension cables, adapters &connectors: see in “Accesso-ries” in the “Piezo Drivers /Servo Controllers” (see p.2-168 ff) section.

Notes

See the “Piezo Drivers / ServoControllers” (see p. 2-99 ff)section for our comprehensiveline of low-noise modular andOEM control electronics forcomputer and manual control.

Read details in Mounting andHandling Guidelines (p. 1-67).

� Displacement 20 μm� Mounts Inside Micrometer Tip� Sub-msec Response� Sub-nm Resolution

Technical Data

Model P-855.20 Tolerance

Open-loop travel @ -20 to 120 V 20 μm ±20 %

*Open-loop resolution 0.2 nm

**Static large-signal stiffness 48 N/μm ±20 %

Push / pull force capacity 100 / 5 N

Operating voltage range -20 to 120 V

Piezo ceramic type PICMA®

Electrical capacitance 1.5 μF ±20 %

Dynamic operating current coefficient (DOCC) 12.5 μA/(Hz • μm)

Unloaded resonant frequency 18 kHz ±20 %

Operating temperature range -40 bis +80 °C

Voltage connection VL

Mass 28 g ±5 %

Recommended amplifier E-610 (p. 2-110)E-500 System (p. 2-142)

*Resolution of piezo actuators is not limited by friction or stiction.Noise equivalent motion with E-505 amplifier

**Dynamic small-signal stiffness ~50 % higher


� Laser tuning

� Static and dynamicpositioning of small parts



P-855.20Piezo Actuator for MicrometerDrive

P-855 Miniature Piezo ActuatorMicrometer-Mountable Open-Loop Piezo Translator

P-855.20 piezo translator

P-855 dimensions in mm, cable length 1 m

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The P-840 and P-841 seriestranslators are high-resolutionlinear actuators for static anddynamic applications. Theyprovide sub-millisecond res-ponse and sub-nanometer res-olution.

Design

These translators are equippedwith highly reliable multilayerpiezo ceramic stacks protectedby a non-magnetic stainlesssteel case with internal springpreload. The preload makesthem ideal for dynamic appli-cations and for tensile loads aswell.


Highest possible reliability isassured by the use of award-winning PICMA® multilayerpiezo actuators. PICMA® actua-tors are the only actuators onthe market with ceramic-onlyinsulation, which makes themresistant to ambient humidityand leakage-current failures.They are thus far superior toconventional actuators in relia-bility and lifetime.

Optimum UHV Compatibility -Minimum Outgassing

The lack of polymer insulationand the high Curie temperaturemake for optimal ultra-high-vacuum compatibility (no out-gassing / high bakeout temper-atures, up to 150 °C).

Mounting

Mounting is at the foot, withpush/pull forces of less than5 N, the actuator can be held byclamping the case. The option-al ball tip (P-840.95) is intendedto decouple torque and off-cen-ter forces from the piezoceramic. The magnetic adapterP-176.20 is to be glued onto thetop piece in order to providemagnetic coupling.

Read details in Mounting andHandling Guidelines (p. 1-67).

High Accuracy in Closed-LoopOperation

The standard model P-840 isdesigned for open-loop posi-tioning. Version P-841 withintegrated high-resolutionstrain gauge position sensorsprovides high precision forclosed-loop operation (furtherdetails see p. 2-199).


High-resolution amplifiers andservo-control electronics, both

digital and analog, aredescribed in the “Piezo Drivers /Servo Controllers” (see p. 2-99)section.Application Examples

� Static and dynamicPrecision positioning

� Disc-drive-testing

� Adaptronics

� Smart structures

� Active vibration control

� Switches

� Laser tuning

� Patch-Clamp

� Nanotechnology

Optional with Integrated Position Sensor

P-840 · P-841 Preloaded Piezo Actuators

P-840, P-841 piezo translators (DIP switch for size comparison)

� Outstanding Lifetime Due to PICMA® Piezo Ceramic Stacks� Travel Range to 90 μm� Compact Case� Pushing Forces to 1000 N� Pulling Forces to 50 N� Sub-Millisecond Response� Sub-Nanometer Resolution� Option: Ball Tip, Vacuum Version


P-840.10Preloaded Piezo Actuator,15 μm Travel range





P-841.10Preloaded Piezo Actuator withSGS-Sensor, 15 μm Travel range





P-840, P-841 dimensions inmm. Length L: See table

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Nanometrology

Micropositioning


IndexTechnical Data

Model P-841.10 P-841.20 P-841.30 P-841.40 P-841.60 UnitsP-840.10 P-840.20 P-840.30 P-840.40 P-840.60

Open-loop travel @ 0 to 100 V 15 30 45 60 90 μm ±20 %

Closed-loop travel 15 / – 30 / – 45 / – 60 / – 90 / – μm

Integrated feedback sensor* SGS / – SGS / – SGS / – SGS / – SGS / –

Closed-loop / open-loop resolution** 0.3 / 0.15 0.6 / 0.3 0.9 / 0.45 1.2 / 0.6 1.8 / 0.9 nm

Static large-signal stiffness*** 57 27 19 15 10 N/μm ±20 %

Pushing forces to 1000 N 1000 1000 1000 1000 1000 N

Pulling forces to 50 N 50 50 50 50 50 N

Max. torque limit (on tip) 0.35 0.35 0.35 0.35 0.35 Nm

Electrical capacitance 1.5 3.0 4.5 6.0 9.0 μF ±20 %

Dynamic operating current coefficient (DOCC) 12.5 12.5 12.5 12.5 12.5 μA / (Hz • μm)

Unloaded resonant frequency fo 18 14 10 8.5 6 kHz ±20 %

Operating temperature -20 to +80 -20 to +80 -20 to +80 -20 to +80 -20 to +80 °C

Voltage connection LEMO LEMO LEMO LEMO LEMO

Sensor connection LEMO LEMO LEMO LEMO LEMO

Mass without cables 20 28 46 54 62 g ±5 %

Material: case, end pieces N-S N-S N-S N-S N-S

Length L 32 50 68 86 122 mm ±0.3

*Closed-loop models can attain linearity up to 0.15 % and are shipped with performance reports.**Resolution of piezo actuators is not limited by stiction or friction. Value given is noise equivalent motion with E-503 amplifier. (p. 2-146)

***Dynamic small-signal stiffness is ~ 30 % higher.Recommended amplifiers / controllersSingle-channel: E-610 servo-controller / amplifier (p. 2-110), E-625 servo-controller, bench-top (p. 2-114), E-621 controller module (p. 2-160)Single channel: modular piezo controller system E-500 (p. 2-142) with amplifier module E-505 (high-power) (p. 2-147) and E-509 controller (p. 2-152) (optional)Multi-channel: modular piezo controller system E-500 (p. 2-142) with amplifier module E-503 (three channels) (p. 2-146) or E-505 (1 per axis, high-power) (p. 2-147)and E-509 controller (p. 2-152) (optional)

Response of aP-841.10 to a3 nm peak-to-peak squarewave controlinput signal,measured withservo-controlbandwidth setto 240 Hz and2 msec settingtime.

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The P-842 / P-843 and P-844 /P-845 series piezo translatorsare high-resolution linear actu-ators for static and dynamicapplications. They provide sub-millisecond response and sub-nanometer resolution.

Design

These translators are equippedwith PICMA® multilayer piezoceramic stacks protected by anon-magnetic stainless steelcase with internal spring pre-load. The preload makes themideal for dynamic applications(such as precision machining,active damping etc.) and fortensile loads as well.

High Accuracy in Closed-LoopOperation

P-842 and P-844 are designedfor open-loop positioning oruse with external feedback.Versions P-843 and P-845 areequipped with integrated high-resolution SGS-position sen-sors for high precision inclosed-loop operation (for fur-

ther notes see the nanoposi-tioning tutorial, see p. 2-199).

Ceramic Insulated Piezo Actu-ators Provide Long Lifetime

Highest possible reliability isassured by the use of award-winning PICMA® multilayerpiezo actuators. PICMA® actua-tors are the only actuators on

For High Loads and Force Generation, Optional with Integrated Position Sensors

P-842 – P-845 Preloaded Piezo Actuators

P-844 piezo actuators(battery for size comparison)

Technical Data and Product Order Numbers

Model Open-loop Closed-loop Integrated Closed-loop / Static Push/pull Electricaltravel travel feedback Open-loop large-signal force capacity capacitancefor 0 to 100 V [μm]* sensor** reslolution stiffness [N] [μF] ±20 %[μm] ±20 % [nm]*** [N/μm] ±20 %

P-842.10 15 – – - / 0.15 57 800 / 300 1.5

P-842.20 30 – – - / 0.3 27 800 / 300 3.0

P-842.30 45 – – - / 0.45 19 800 / 300 4.5

P-842.40 60 – – - / 0.6 15 800 / 300 6.0

P-842.60 90 – – - / 0.9 10 800 / 300 9.0

P-843.10 15 15 SGS 0.3 / 0.15 57 800 / 300 1.5

P-843.20 30 30 SGS 0.6 / 0.3 27 800 / 300 3.0

P-843.30 45 45 SGS 0.9 / 0.45 19 800 / 300 4.5

P-843.40 60 60 SGS 1.2 / 0.6 15 800 / 300 6.0

P-843.60 90 90 SGS 1.8 / 0.9 10 800 / 300 9.0

P-844.10 15 – – - / 0.15 225 3000 / 700 6.0

P-844.20 30 – – - / 0.3 107 3000 / 700 12.0

P-844.30 45 – – - / 0.45 75 3000 / 700 18.0

P-844.40 60 – – - / 0.6 57 3000 / 700 24.0

P-844.60 90 – – - / 0.9 38 3000 / 700 36.0

P-845.10 15 15 SGS 0.3 / 0.15 225 3000 / 700 6.0

P-845.20 30 30 SGS 0.6 / 0.3 107 3000 / 700 12.0

P-845.30 45 45 SGS 0.9 / 0.45 75 3000 / 700 18.0

P-845.40 60 60 SGS 1.2 / 0.6 57 3000 / 700 24.0

P-845.60 90 90 SGS 1.8 / 0.9 38 3000 / 700 36.0

� Outstanding Lifetime Due to PICMA® Piezo Ceramic Stacks� Travel Range to 90 μm� Pushing Forces to 3000 N� Pulling Forces to 700 N� Sub-Millisecond Response� Sub-Nanometer Resolution� Options: Vacuum Version, Water-Resistant Case


� Static and dynamicprecision positioning

� Disc-drive-testing

� Optics

� Metrology / interferometry

� Smart structures /adaptronics

� Precision mechanics /machining

� Active vibration control

� Switches

� Laser tuning

1-77










Nanometrology

Micropositioning


Index

P-844, P-845 dimensions in mm. Length L:see table. Max. torque at top piece: 1 Nm

P-842, P-843 dimensions in mm. Length L:see table. Max. torque at top piece: 0.35 Nm

Voltage connection:LEMO FFA.00.250. coaxial cable, RG 178, PTFE.

Sensor connector: LEMO FFA.0S.304 connector; 1 mcoaxial cable with PUR-insulation.

Temperature range: -40 to 80 °C; Case / end pieces:non-magnetic steel.

*Closed-loop models can attain linearityup to 0.15 % and are shipped withperformance reports.

**Resolution of piezo actuators is not limited by stic-tion or friction. Noise equivalent motion with E-503amplifier (see p. 2-146).

***Dynamic small-signal stiffness is ~ 30 % higher.Recommended amplifiers / controllersSingle-channel: E-610 servo-controller / amplifier(p. 2-110), E-625 servo-controller, bench-top( p. 2-114),E-621 controller module (p. 2-160)Single channel: modular piezo controller system E-500(p. 2-142) with amplifier module E-505 (high-power)(p. 2-147) and E-509 controller (p. 2-152) (optional)Multi-channel: modular piezo controller system E-500(p. 2-142) with amplifier module E-503 (three channels)(p. 2-146) or E-505 (1 per axis, high-power, see p. 2-147)and E-509 controller (p. 2-152) (optional)

Dynamic operat- Resonant Mass Length Ling current frequency without [mm]coefficient (unloaded) cable[μA / (Hz • μm)] [kHz] ±20 % [g] ±5 %

12.5 18 31 37

12.5 14 42 55

12.5 10 53 73

12.5 8.5 64 91

12.5 6 86 127

12.5 18 31 37

12.5 14 42 55

12.5 10 53 73

12.5 8.5 64 91

12.5 6 86 127

50 16 84 47

50 12 108 65

50 9 132 83

500 7.5 156 0101

50 5.5 204 137

50 16 84 47

50 12 108 65

50 9 132 83

50 7.5 156 101

50 5.5 204 137

the market with ceramic-onlyinsulation, which makes themresistant to ambient humidityand leakage-current failures.They are thus far superior toconventional actuators in relia-bility and lifetime.


The lack of polymer insulationand the high Curie temperaturemake for optimal ultra-high-vacuum compatibility (no out-gassing / high bakeout temper-atures, up to 150 °C).

Mounting

Mounting is at the foot, withpush/pull forces of less than100 N, the actuator can be heldby clamping the case. The flex-ible tips P-176.50 / P-176.60 canbe applied for protection of theceramics from shearing forces(see p. 1-103 ff ) Read details inMounting and Handling Guide-lines (p. 1-67).

Options

P-703.20High vacuum options (seep. 1-102 ff )

Accessories

P-176.50Flexible tip for P-842 / P-843(see p. 1-103 ff )P-176.60Flexible tip for P-844 / P-845(see p. 1-103 ff )For extensions, adapter cablesand connectors, see “Acces-sories” in the Piezo Actuators& Components section (p.1-104 ff ).


High-resolution amplifiers andservo-control electronics, bothdigital and analog, are de-scribed in the “Piezo Drivers /Servo Controllers” section.

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P-212, P-216 PICA™ Power Piezo Stack ActuatorsPreloaded Piezo Actuators (HVPZT) w/ Sensor Option

The P-212 and P-216 series arehigh-resolution linear piezoactuators (translators) for staticand dynamic applications.They provide sub-millisecond

response and sub-nanometerresolution.

These actuators have the fric-tion-free, preloaded PICA™Power actuators inside. Thepreload makes them ideal fordynamic applications like preci-sion machining or active damp-ing.

High Displacement with Ultra-High Reliability

PICA™ Power actuators areoptimized for high-temperatureworking conditions and high-duty-cycle dynamic applica-tions.

All PICA™ piezo ceramicsare specifically designed forhigh-duty-cycle applications.With PI’s extensive applicationsknowledge, gained over sever-al decades, performance does

not come at the price ofreliability. All materials usedare specifically matched forrobustness and lifetime. En-durance tests on PICA™ actua-tors prove consistent perfor-mance, even after billions(1,000,000,000) of cycles.

Open- and Closed-LoopModels for OptimumDynamics and Linearity

The standard models are idealfor open loop positioning appli-cations. In this mode the actua-tor displacement is roughly pro-portional to the applied voltage.

Open-loop operation is idealfor applications where fastresponse and very high reso-lution with maximum band-width are essential. Here,commanding and reading thetarget position in absolutevalues is either not importantor carried out by externalposition sensors (see p. 2-104).

For highest positioning accura-cy and repeatability, select thefactory installed closed-loopoption with integrated ultra-high-resolution strain gaugeposition sensors and operatewith PI servo-control electron-ics. For more information,read the tutorial “Piezo-

electrics in Positioning” (seep. 2-169 ff ).

Mechanical Mounting

Mounting is at the foot, withpush/pull forces of less than5 N, the actuator can be held byclamping the case. The option-al ball tip is intended to decou-ple torque and off-center forcesfrom the translator. Read de-tails in Mounting and HandlingGuidelines (p. 1-67).

High Flexibility withPI Amplifiers, Drivers &Controllers

PI offers a wide range of con-trol electronics for piezo actua-tors from low-power drivers tothe high-performance ampli-fier / controller E-481.

For closed-loop operation PIoffers a wide variety of analogand digital controllers. TheE-500 modular system can beeasily upgraded from an ampli-fier to a servo controller, in-cluding different interface / dis-play modules.

High-resolution amplifiers andservo-control electronics, bothdigital and analog, see selectionguide in the „Piezo Drivers /Servo Controllers“ section (seep. 2-97 ff ).


� Optics

� Metrology / interferometry

� Adaptronics

� Precision engineering /micromechanics

� Adaptive mechanics

� Active vibration damping

� Switches

� Laser tuning

� Force generation /materials testing

� Nanotechnology

From left:P-212.1S and .8S, P-216.9S,.4S and .1S piezo actuators

(CD for size comparison)


P-21 .

1 Travel Range 15 μm




9 Travel Range 180 μm (P-216 only)

2 Preloaded Piezo Actuator, 1000 V, 2000 N

6 Preloaded Piezo Actuator, 1000 V, 4500 N

T modified for Low Temperature

V modified for High Temperature/Vacuum

0 w/o Sensor

S w/SGS Position Sensor

Please read “Options and Accessories” (page 1-102 ff ) forfurther information.Extensions cables, adapters & connectors: see in “Accessories”in the “Piezo Drivers / Servo Controllers” (see p. 2-168 ff ) section.

Option:

P-177.50Dynamic applica-tions (with E-481):temperature sensorand protective airfor PICATM HVPZT

� Travel Range to 180 μm� Pushing Forces to 4500 N� Pulling Forces to 500 N� Sub-millisecond Response� Sub-nanometer Resolution� Options: Vacuum, High- and Low-Temperature

1-79










Nanometrology

Micropositioning


Index

P-212 and P-216, dimensions in mm.End pieces and case of stainless steel. Sensor connection: LEMO FFA.0S.304; 1 m coaxial cable with PUR insulation.

Input voltage connection: LEMO FGG.0B.701.CJA.1173, PUR cable, 2-conductor, shielded

Technical Data

P-212.10 P-212.20 P-212.40 P-212.80 P-216.10 P-216.20 P-216.40 P-216.80 P-216.90 Unit Tolerance

Operating voltage 0 to1000 0 to1000 0 to 1000 0 to 1000 0 to 1000 0 to 1000 0 to 1000 0 to 1000 0 to 1000 V


Closed-loop travel* 15 30 60 120 15 30 60 120 180 μm

Closed-loop resolution*/** 0.3 0.6 1.2 2.4 0.3 0.6 1.2 2.4 3.6 nm typ.

Open-open resolution** 0.15 0.3 0.6 1.2 0.15 0.3 0.6 1.2 1.8 nm typ.

Linearity* 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 % typ.

Mechanical properties

Static large-signal stiffness*** 90 60 34 18 210 140 80 50 32 N/μm ±20%

Unloaded resonant frequency 17 12 7 4.5 17 12 7 4.5 3 kHz ±20%

Push/pull force capacity 2000 /300 2000 /300 2000 /300 2000 /300 4500 / 500 4500 / 500 4500 / 500 4500 / 500 4500 / 500 N Max.

Shear force limit 15 10 10 10 60 36 23 23 23 N

Torque limit (on tip) 0.5 0.5 0.5 0.5 1 1 1 1 1 Nm

Drive properties

Electrical capacitance 47 90 180 370 130 250 500 1000 1500 nF ±20%

Dynamic operating 5 5 5 5 13 13 13 13 13 μA/(Hz • μm) ±20%current coefficient

Miscellaneous

Mass (with cable) 110 120 150 210 170 200 250 370 480 g ±5%

* Requires SGS sensor. SGS versions are shipped with performance reports** Measured with an Interferometer. The resolution of piezo actuators is not limited by stiction or friction

*** Dynamic small-signal stiffness is ~50% higherPiezo ceramic type: PICATM PowerOperating temperature range: -40 to +80 °CRecommended controller/driver see p. 2-100 ffFor maximum lifetime, voltages in excess of 750 V should be applied only for short durationsSee Notes (Technical Data) for further information (p. 1-106 ff )

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P-225 and P-235 are preloaded,high-load piezo actuators (tran-s lators) for static and dynamicapplications. They pro vide sub-millisecond re-sponse and sub-nanometer resolution.

These ultra-high-force linear

actuators consist of PICATM

Power piezoelectric ceramic-stacks encapsulated in a stain-less steel case with stainlesssteel end pieces and a friction-less internal spring preload.The high load capacity and pre-load makes them ideal formachining applications andactive vibration cancellation.


PICATM Power actuators areoptimized for high-temperatureworking conditions and high-duty-cycle dynamic appli ca-tions.

All PICATM piezo ceramics arespecifically designed for high-dutycycle applications. WithPI’s extensive applicationsknowledge, gained over sever-

al decades, performance doesnot come at the price of relia-bility. All materials used arespecifically matched for robust-ness and lifetime. Endurancetests on PICATM actuators proveconsistent performance, evenafter billions (1,000,000,000) ofcycles.

Open- and Closed-LoopModels for OptimumDynamics and Linearity

The standard models are idealfor open loop positioning applications. In this mode theactuator displacement isroughly proportional to theapplied voltage.

Open-loop operation is idealfor applications where the fast -est response and the highestbandwidth are essential. Here,commanding and reading thetarget position in absolute val-ues is either not important orcarried out by an external feed-back loop.

For highest positioning accura-cy and repeatability, select thefactory installed closed-loopoption with integrated ultra-high- resolution strain gaugeposition sensors and operatewith PI servo-control electron-ics. For more information, read

the tutorial “Piezo electrics inPositioning” (see p. 2-169 ff ).

High Flexibility with PI Amplifiers, Drivers & Controllers

PI offers a wide range of con-trol electronics for piezo actua-tors from economical, low-power piezo drivers to the E-481 high-performance am-plifier / controller providing2000 W of dynamic power.

For closed-loop operation awide variety of analog and dig-ital controllers is available. TheE-500 modular system can beeasily upgraded from an ampli-fier to a servo controller, includ-ing different interface / displaymodules.

Read details in Mount ing andHandling Guide lines (p. 1-67).

High-resolution amplifiers andservo-control electronics, bothdigital and analog, see selec-tion guide in the “Piezo Drivers /Servo Controllers” section (seep. 2-99 ff ).

� Extremely High Stiffness � Pushing Forces to 30,000 N � Pulling Forces to 3500 N � Travel Ranges to 180 μm � Options: Versions for Vacuum, High- and Low-Temperatures

and with Water-Resistant Case

Aplication Examples

� Precision engineering /micromechanics

� Adaptive mechanics


� Adaptronics

� Static and dynamicprecision positioning

� Force generation /materials testing

P-225, P-235 PICA™ Power Piezo Stack ActuatorsPreloaded High-Load Piezo Actuators (HVPZT) w/ Sensor Option

High-load piezo actuators P-235.1S, .4S and .9S, P-225.8S and .1S(from left) with CD for size comparison


P-2 5.





9 Travel Range 180 μm (P-235 only)

2 Preloaded High-Load Piezo Actuator, 1000 V, 12500 N

3 Preloaded High-Load Piezo Actuator, 1000 V, 30000 N

T modified for Low Temperature

V modified for High Temperature/Vacuum

0 w/o Sensor

S w/SGS Position Sensor

Please read “Options and Accessories” (page 1-102 ff ) for further information.Extensions cables, adapters & connectors: “Accessories” in the“Piezo Drivers / Servo Controllers” (see p. 2-168 ff ) section.

Option:

P-177.50Dynamic applications(with E-481): temperature sensorand protective air forPICATM HVPZT

P-706.00Water-resistant case

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Technical Data

Model P-225.10 P-225.20 P-225.40 P-225.80 P-235.10 P-235.20 P-235.40 P-235.80 P-235.90 Unit Tolerance

Operating voltage 0 to 1000 0 to 1000 0 to 1000 0 to 1000 0 to 1000 0 to 1000 0 to 1000 0 to 1000 0 to 1000 V


Closed-loop travel* 15 30 60 120 15 30 60 120 180 μm

Closed-loop resolution*/** 0.3 0.6 1.2 2.4 0.3 0.6 1.2 2.4 3.6 nm typ.

Open-loop resolution** 0.15 0.3 0.6 1.2 0.15 0.3 0.6 1.2 1.8 nm typ.

Linearity* 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 % typ.

Mechanical properies

Static large-signal 480 330 200 110 860 600 380 210 150 N/μm ±20stiffness***

Unloaded resonant 14 10 7 4 14 10 7 3,9 2,8 kHz ±20 %frequency

Push/pull force capacity 12500 / 12500 / 12500 / 12500 / 30000 / 30000 / 30000 / 30000 / 30000 / N Max.2000 2000 2000 2000 3500 3500 3500 3500 3500

Shear force limit 255 152 84 73 707 420 232 147 147 N

Torque limit (on tip) 1,5 1,5 1,5 1,5 2 2 2 2 2 Nm

Drive properties

El. capacitance 320 630 1300 2600 550 1100 2400 5100 7800 nF ±20 %

Dynamic operating 33 33 33 33 65 65 65 65 65 μA/(Hz • μm) ±20 %current coefficient

Miscellaneous

Mass (with cable) 410 470 610 900 580 690 940 1400 1900 g ±5 %

*Requires SGS sensor. SGS versions are shipped with performance reports**Measured with an interferometer. The resolution of piezo actuators is not limited by stiction or friction

***Dynamic small-signal stiffness is ~50 % higherPiezo ceramic type: PICATM PowerOperating temperature range: -40 to +80 °CRecommended controller/driver see p. 2-100 ffFor maximum lifetime, voltages in excess of 750 V should be applied only for short durationsSee Notes (Technical Data) for further information (see p. 1-106 ff )

P-225 and P-235, dimensions in mm. End pieces and case of stainless steel.Sensor connection: LEMO FFA.0S.304; 1 m coaxial cable with PUR insulation.

Voltage connection: LEMO FGG.0B.701.CJA.1173, 1 m cable with PUR insultaion,2-conductor, shielded

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PICMA® (PI Ceramic Mono -lithic Multilayer Actuator) piezostack actuators are character-ized by their high performanceand reliability, even in ex -tremely harsh environments.They are superior to conven-tional multilayer actuators in

industrial applications andhigh-endurance situations,where they show substantiallylonger lifetimes both in staticand dynamic operation.

New Production Process,Optimized Piezo Ceramics

PICMA® piezo actuators aremade from a ceramic materialin which the piezoceramicproperties such as stiffness,capacitance, displacement,tem perature stability and life-time are optimally combined.Thus the actuators accomplishsub-nanometer resolution inpositioning and sub-millisec-ond response!

Increased Lifetime ThroughHumidity Resistance

The monolithic ceramic-encap-sulated design provides betterhumidity protection than poly-

mer-film insulation. Diffusionof water molecules into theinsulation layer is greatlyreduced by the use of cofired,outer ceramic encapsulation.Due to their high resonant fre-quency the actuators are suit-able for highly dynamic appli-cations with small loads;depending on the load anexternal preload for dynamicapplications is recommended.The high Curie temperature of320 °C gives PICMA® actuatorsa usable temperature rangeextending up to 150 °C, farbeyond 80 °C as is common forconventional multilayer actua-tors. With conventional multi-layer actuators, heat genera-tion - which is proportional tooperating frequency - eitherlimits the operating frequencyor duty cycle in dynamic oper-ation, or makes ungainly cool-ing provisions necessary. Atthe low end, operation down toa few Kelvin is possible (withreduction in performance speci fications).


The lack of polymer insulationand the high Curie temperaturemake for optimal ultra-high-vacuum compatibility (highbakeout temperatures, up to150 °C).

Ideal for Closed-LoopOperation

The ceramic surface of theactuators is extremely wellsuited for use with resistive oroptical fiber strain gauge sen-sors. Such sensors can be eas-i ly applied to the actuator sur-face and exhibit significantlyhigher stability and linearitythan with conventional poly-mer-insulated actuators.

Piezo Drivers, Controllers &High-Voltage Amplifiers

High-resolution amplifiers andservo-control electronics, bothdigital and analog, aredescribed in the “Piezo Drivers /Servo Control lers" section.

Read more on PICMA® reliabili-ty on page 2-12 ff.

Ceramic-Insulated High-Power Actuators

P-882 · P-888 PICMA® Multilayer Piezo Stack Actuators


� Precision mechanics / -machining

� High-speed switching

� Active and adaptive Optics


� Pneumatic & hydraulic valves

� Metrology / Interferometry

� Life science,Biotechnology

� Nanotechnology

� Superior Lifetime Even Under Extreme Conditions� Very Large Operating Temperature Range� High Humidity Resistance� Excellent Temperature Stability� High Stiffness� Peak Current up to 20 A� UHV Compatible to 10-9 hPa� Sub-Millisecond Response / Sub-Nanometer Resolution� Ideal for Dynamic Operation

PICMA® piezo actuators are available with cross-sections of 2 x 3, 3 x 3, 5 x 5, 7 x 7 and 10 x 10 mm2

PICMA® actuator with optional 0.1 m PTFEinsulated wire leads and

optional rounded top piece for decoupling lateral forces

PICMA® actuators, dimensions in mm

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PICMA® piezo actuators (bottom curve) compared with conventionalmultilayer actuators with polymer insulation (top curve). PICMA®

actuators are not affected by the high-humidity test conditions.Conventional piezo actuators exhibit increased leakage current afteronly a few hours. Leakage current is an indicator quality andexpected lifetime.

Test conditions: U = 100 VDC, T = 25 °C, Relative Humidity = 70 %

Technical Data / Product Order Numbers

Order Dimensions Nominal Max. Blocking Stiffness Electrical Resonant number* A x B x L displacement displacement force [N/μm] capacitance frequency

[mm] [μm @ 100 V] [μm @ 120 V] [N @ 120 V] [μF] ±20 % [kHz] ±20 %

P-882.10 2 x 3 x 9 6.5 ±20 % 8 ±20 % 190 24 0.15 135

P-882.30 2 x 3 x 13.5 11 ±20 % 13 ±20 % 210 16 0.22 90

P-882.50 2 x 3 x 18 15 ±10 % 18 ±10 % 210 12 0.31 70

P-883.10 3 x 3 x 9 6.5 ±20 % 8 ±20 % 290 36 0.21 135

P-883.30 3 x 3 x 13.5 11 ±20 % 13 ±20 % 310 24 0.35 90

P-883.50 3 x 3 x 18 15 ±10 % 18 ±10 % 310 18 0.48 70

P-885.10 5 x 5 x 9 6.5 ±20 % 8 ±20 % 800 100 0.6 135

P-885.30 5 x 5 x 13.5 11 ±20 % 13 ±20 % 870 67 1.1 90

P-885.50 5 x 5 x 18 15 ±10 % 18 ±10 % 900 50 1.5 70

P-885.90 5 x 5 x 36 32 ±10 % 38 ±10 % 950 25 3.1 40

P-887.30 7 x 7 x 13.5 11 ±20 % 13 ±20 % 1700 130 2.2 90

P-887.50 7 x 7 x 18 15 ±10 % 18 ±10 % 1750 100 3.1 70

P-887.90 7 x 7 x 36 32 ±10 % 38 ±10 % 1850 50 6.4 40

P-888.30 10 x 10 x 13.5 11 ±20 % 13 ±20 % 3500 267 4.3 90

P-888.50 10 x 10 x 18 15 ±10 % 18 ±10 % 3600 200 6.0 70

P-888.90 10 x 10 x 36 32 ±10 % 38 ±10 % 3800 100 13.0 40

Standard piezo ceramic type: 252*For optional PTFE insulated wires, pigtail length 100 mm, change order number extension to .x1 (e. g. P-882.11).Recommended preload for dynamic operation: 15 MPaMaximum preload for constant force: 30 MPaResonant frequency at 1 Vpp, unloaded, free at both sides. The value is halved for unilateral clampingCapacitance at 1 Vpp, 1 kHzOperating voltage: -20 to +120 VOperating temperature range: -40 to +150 °CStandard Mechanical Interfaces: CeramicsStandard Electrical Interfaces: Solderable padsAvailable Options: strain gauge sensors, special mechanical interfaces, etc. Other specifications on request.

The displacement of PICMA® actuators exhibits very low tempera-ture dependence. This, in combination with their low heat genera-tion, makes PICMA® actuators optimal for dynamic operation


P-871 transducers are uniqueclosed-loop piezo bendersbased on the open-loop PL 122to PL 140 PICMA® -series multi-layer actuators p. 1-94. Equip -ped with high-resolution posi-tion feedback sensors they pro-vide better linearity, accuracyand repeatability than otherpiezo benders on the market.P-871 bender actuators achievelonger positioning ranges thantypical piezo stack actuators,

up to 1.6 mm, while still pro-viding fast response times inthe millisecond range.

Design

These multilayer piezoelectriccomponents are manufacturedfrom ceramic layers of onlyabout 50 μm thickness. Theyfeature internal silver-palladi-um electrodes and ceramicinsulation applied in a cofiringprocess. Due to the thin layersthe operating voltage is signifi-cantly lower than for classicalparallel bimorph bender ele-ments. For ease of installation,the units come complete withthe mounting hardware, cablesand connectors.

Closed-Loop Position Controlfor Higher Accuracy

P-871s are ideal devices forscanning, positioning andbeam deflection applicationsand provide much better accu-

racy, stability and repeatabilitythan conventional open-loopactuators. The special benderdesign allows the direct appli-cation of a strain gauge sensorto the surface without the needfor a polymer insulation layerin between. The advantagesare faster response, reducedphase lag and precise positioncontrol with non-linearity of

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P-871 dimensions in mm, cable length >1 m

Technical Data

Model P-871.112* P-871.122 P-871.127 P-871.128* P-871.140 Units

Closed-loop travel ±80 ±200 ±360 ±360 ±800 μm

Integrated feedback sensor SGS SGS SGS SGS SGS

Closed-loop linearity 0.5 0.5 0.5 0.5 0.5 %

Static large-signal stiffness 0.02 0.01 0.003 0.002 0.0007 N/μm

Blocking force ±2.0 ±1.1 ±1.0 ±0.5 ±0.5 N ±20 %

Electrical capacitance 2 x 1.1 2 x 2.4 2 x 3.4 2 x 1.2 2 x 4.0 μF ±20 %

Unloaded resonant frequency 2540 1010 560 340 195 Hz ±20 %

Resonant frequency @ 6.5 g load 480 220 145 100 60 Hz ±20 %

Operating voltage: 0 to 60 V (±30 V)Recommended driver / controller: E-651 bench top / E-614 PCI card (p. 2-123)Connector: 1 LEMO connector for both sensor and voltage supplyOperating temperature range: -20 to +85 °C; ** to +150 °CResonant frequency at 1 Vpp, capacitance at 1 Vpp, 1 kHzAll specifications depend on the real clamping conditions and on the applied mechanical load. Other specifications on request.

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PICA™ Stack piezo ceramicactuators are offered in a largevariety of standard shapes andsizes with additional customdesigns to suit any application.

Ultra-High Reliability, HighDisplacement, Low PowerRequirements

PICA™ piezo actuators arespecifically designed for high-duty-cycle applications. Withour extensive applications

knowledge, gained over sever-al decades, we know how tobuild performance that doesnot come at the price of relia-bility. All materials used arespecifically matched for ro -bust ness and lifetime.Endurance tests on PICA™actuators prove consistent per-formance, even after billions(1,000,000,000 ) of cycles. Thecombination of high displace-ment and low electrical capaci-tance provides for excellentdynamic behavior with re -duced driving power require-ments.

Flexibility / Short Leadtimes

All manufacturing processes atPI Ceramic are set up for flexi-bility. Should our standardactuators not fit your appli ca-tion, let us provide you with acustom design. Our engineerswill work with you to find theoptimum solution at a veryattractive price, even for smallquantities. Some of our customcapabilities are listed below:� Custom Materials� Custom Voltage Ranges� Custom Geometries

(Circular, Rectangular, Tri -angular, Layer Thickness ...)

� Custom Load / ForceRanges

� Custom Flat or SphericalEndplates (Alumina, Glass,Sapphire, ...)

� Extra-Tight LengthTolerances

� Integrated PiezoelectricSensor Discs

� Special High / LowTemperature Versions

� Vacuum CompatibleVersions

Because all piezoelectric mate-rials used in PICA™ actuatorsare manufactured at PI Cera -mic, leadtimes are short andquality is outstanding. All stan-dard and custom actuators aredelivered with performancetest sheets.


High-resolution amplifiers andservo-control electronics, both

digital and analog, are descri -bed in the “Piezo Drivers / ServoControllers” (see p. 2-99 ff ) sec-tion.

PICA™ Stack piezo actuatorsare delivered with metal end-caps for improved robustnessand reliability. For preloaded versions withsteel casings (see p. 1-78, p. 1-80).

� High Load Capacity to 100 kN� High Force Generation to 80 kN� Large Cross Sections to 56 mm Diameter� A selection of Variety of Shapes� Extreme Reliability >109 Cycles� Sub-Millisecond Response, Sub-Nanometer Resolution� Vacuum-Compatible Versions

P-007 – P-056 PICA™ Stack Actuator


� Nanopositioning

� High-load positioning


� Semiconductor technology/ test systems

� Laser tuning

� Switches

� Smart structures(Adaptronics)

Piezo actuator for highly dynamic applications

PICA™-Stack dimensions, see technicaldata table for further information

Standard actuators are covered with heat-shrink tube,shown here is the model P-025.40

Custom PICA™-Stack actuator with 350 μm displacement

Variety of standard and custom PICA™ Stack piezo actuators

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Custom PICA™-Stack actuator, each layer wired individually.

Custom PICA™-Stack actuators with rectangular cross-sections.


Order Displacement Diameter D Length L Blocking Stiffness Capacitance Resonant number [μm] -10/+20% [mm] [mm] ±0.5 force [N] [N/μm] [nF] ±20% frequency [kHz]

P-007.00 5 7 8 650 130 11 126

P-007.10 15 7 17 850 59 33 59

P-007.20 30 7 29 1000 35 64 36

P-007.40 60 7 54 1150 19 130 20

P-010.00 5 10 8 1400 270 21 126

P-010.10 15 10 17 1800 120 64 59

P-010.20 30 10 30 2100 71 130 35

P-010.40 60 10 56 2200 38 260 20

P-010.80 120 10 107 2400 20 510 10

P-016.10 15 16 17 4600 320 180 59

P-016.20 30 16 29 5500 190 340 36

P-016.40 60 16 54 6000 100 680 20

P-016.80 120 16 101 6500 54 1300 11

P-016.90 180 16 150 6500 36 2000 7

P-025.10 15 25 18 11000 740 400 56

P-025.20 30 25 30 13000 440 820 35

P-025.40 60 25 53 15000 250 1700 21

P-025.80 120 25 101 16000 130 3400 11

P-025.90 180 25 149 16000 89 5100 7

P-025.150 250 25 204 16000 65 7100 5

P-025.200 300 25 244 16000 54 8500 5

P-035.10 15 35 20 20000 1300 700 51

P-035.20 30 35 32 24000 810 1600 33

P-035.40 60 35 57 28000 460 3300 19

P-035.80 120 35 104 30000 250 6700 11

P-035.90 180 35 153 31000 170 10000 7

P-045.20 30 45 33 39000 1300 2800 32

P-045.40 60 45 58 44000 740 5700 19

P-045.80 120 45 105 49000 410 11000 10

P-045.90 180 45 154 50000 280 17000 7

P-050.20 30 50 33 48000 1600 3400 32

P-050.40 60 50 58 55000 910 7000 19

P-050.80 120 50 105 60000 500 14000 10

P-050.90 180 50 154 61000 340 22000 7

P-056.20 30 56 33 60000 2000 4300 32

P-056.40 60 56 58 66000 1100 8900 19

P-056.80 120 56 105 76000 630 18000 10

P-056.90 180 56 154 78000 430 27000 7

Standard piezo ceramic type:PIC 151Recommended preload fordynamic operation: 15 MPaMaximum preload for constantforce: 30 MPaResonant frequency at 1 Vpp,unloaded, free at both sides.The value is halved for unilateralclampingCapacitance at 1 Vpp, 1 kHzblocking force at 1000 VOperating voltage: 0 to 1000 VOperating temperature range: -20 to +85 °CStandard mechanical interfaces:steel plates, 0.5 to 2 mm thick(depends on model)Standard electrical interfaces:two PTFE-insulated wires, pigtaillength 100 mm Available options: integratedpiezo force sensor or straingauge sensors, non magnetic,vacuum compatible, etc. Other specifications on request.

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PICA™ Power piezoceramicstack actuators are offered in alarge variety of standardshapes and sizes, with addi-tional custom designs to suitany application. Based on thePIC 255 material, PICA™ Stack

Power actuators are optimizedfor high-temperature workingconditions and high-duty-cycledynamic applications.


PICA™ Power actuators areoptimized for high-tempera-ture working conditions andhigh-duty-cycle dynamic appli-cations.

All PICA™ piezo ceramics arespecifically designed for high-duty-cycle applications. WithPI’s extensive applicationsknowledge, gained over sever-al decades, performance doesnot come at the price of relia-bility. All materials used arespecifically matched forrobustness and lifetime.Endurance tests on PICA™actuators prove consistent per-formance, even after billions(1,000,000,000) of cycles.

Flexibility / Short Leadtimes

All manufacturing processes atPI Ceramic are set up for flexi-bility. Should our standardactuators not fit your applica-tion, let us provide you with acustom design. Our engineerswill work with you to find theoptimum solution at a veryattractive price, even for smallquantities. Some of our cus-tom capabilities are listedbelow:� Custom Materials� Custom Voltage Ranges� Custom Geometries

(Circular, Rectangular, Tri -angular, Layer Thickness ...)

� Custom Load / ForceRanges

� Custom Flat or SphericalEndplates (Alumina, Glass,Sapphire, ...)

� Extra-Tight LengthTolerances

� Integrated PiezoelectricSensor Discs

� Special High / LowTemperature Versions

� Vacuum CompatibleVersions

Because all piezoelectric mate-rials used in PICA™ actuatorsare manufactured at PI Ce ra m -ic, leadtimes are short and

quality is outstanding. All stan-dard and custom actuators aredelivered with performancetest sheets.


PI offers a wide range of piezocontrol electronics, from low-power drivers to the ultra-high-performance E-481 poweramplifier delivering 2000 W ofdynamic power. For closed-loop positioning applications, avariety of analog and digitalcontrollers is also available.The modular E-500 system canbe upgraded from an amplifierto a servo-controller and offersa variety of computer inter-faces. Of course, PI also de -signs custom amplifiers andcontrollers (see p. 2-98 ff ).


� Nanopositioning


� High-load positioning


� Semiconductor technology / test systems

� Laser tuning

� Switches

� Smart structures(Adaptronics)

� Nanotechnology

Piezo Stack Actuators for High-Level Dynamic Applications

P-010.xxP – P-056.xxP PICA™ Power Actuator

Variety of PICATM

Power piezo stackactuators from

5 μm to 180 μm travel range

� Operating Temperature to 150 °C� High Load Capacity to 80 kN� High Force Generation to 70 kN � Large Cross Sections to 56 mm Diameter� Extreme Reliability >109 Cycles� Sub-Millisecond Response, Sub-Nanometer Resolution� UHV Versions to 10-9 hPa� Non-Magnetic Versions� Temperature Sensor PT1000 Applied

OEM-PICA™ Power piezo actuators areavailable with cross sections to 56 mm

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Standard piezo ceramic type:PIC 255Recommended preload fordynamic operation: 15 MPaMaximum preload for constantforce: 30 MPaResonant frequency at 1 Vpp,unloaded. The value is halvedfor unilateral clampingCapacitance at 1 Vpp, 1 kHzblocking force at 1000 VOperating voltage: 0 to 1000 VOperating temperature range: -20 to +150 °CStandard mechanical interfaces:steel plates, 0.5 to 2 mm thick(depends on model)Standard electrical interfaces:two PTFE-insulated wires, pigtail length 100 mm Available options: integratedpiezo sensor or strain gaugesensors, non magnetic, vacuumcompatible, etc.Other specifications on request.


Order Displacement Diameter D Length L Blocking Stiffness Capacitance Resonant number [μm] -10/+20% [mm] [mm] ±0.5 force [N] [N/μm] [nF] ±20% frequency [kHz]

P-010.00P 5 10 9 1200 240 17 129

P-010.10P 15 10 18 1800 120 46 64

P-010.20P 30 10 31 2100 68 90 37

P-010.40P 60 10 58 2200 37 180 20

P-010.80P 120 10 111 2300 19 370 10

P-016.10P 15 16 18 4500 300 130 64

P-016.20P 30 16 31 5400 180 250 37

P-016.40P 60 16 58 5600 94 510 20

P-016.80P 120 16 111 5900 49 1000 10

P-016.90P 180 16 163 6000 33 1600 7

P-025.10P 15 25 20 9900 660 320 58

P-025.20P 30 25 33 12000 400 630 35

P-025.40P 60 25 60 13000 220 1300 19

P-025.80P 120 25 113 14000 120 2600 10

P-025.90P 180 25 165 14000 80 4000 7

P-035.10P 15 35 21 18000 1200 530 55

P-035.20P 30 35 34 23000 760 1200 34

P-035.40P 60 35 61 26000 430 2500 19

P-035.80P 120 35 114 28000 230 5200 10

P-035.90P 180 35 166 29000 160 7800 7

P-045.20P 30 45 36 36000 1200 2100 32

P-045.40P 60 45 63 41000 680 4300 18

P-045.80P 120 45 116 44000 370 8800 10

P-045.90P 180 45 169 45000 250 13000 7

P-056.20P 30 56 36 54000 1800 3300 32

P-056.40P 60 56 63 66000 1100 6700 18

P-056.80P 120 56 116 68000 570 14000 10

P-056.90P 180 56 169 70000 390 21000 7

PI

high precision - piezo actuators & components...p-871 picma® multilayer bender actuators, co-fired...

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