magnetic deflection review theory 3 the experiment 4 ...igor/class/labs/magneticdeflection.pdf · a...
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1Copyright ©2000-2004 J. A. Panitz ▼
VISUAL E&M
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A FOCUSSED CONCEPT eLAB
Magnetic Deflection
Introduction ................................................. 2Review Theory ............................................ 3The Experiment ........................................... 4
Getting Started ........................................ 4Prepare for Data Collection ..................... 5Prepare for Data Collection ..................... 6Measure a Deflection Current .................. 6Find the Magnetic Field Strength............. 7Compare e/m with the Accepted Value .... 7
Team Discussion ......................................... 8Finish Up ..................................................... 9Materials and Supplies .............................. 10
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Introduction
Figure 1 shows an electron beam tubecentered between a pair of Helmholtz coils.A beam of electrons is generated in the tubeby an “electron gun”. The beam emergesfrom a hole in the center of a circular anode.When a current is passed through the coils,a magnetic field is generated. The magneticfield causes the electron beam to bend intoa circular trajectory and strike the anode.
The goal, today, is to investigate thedeflection of an electron beam in a magneticfield and to use the deflection to find thecharge-to-mass ratio (e/m) of the electron.
Figure 1. Electron beam tube.
ANODE
ELECTRONGUN
PIN JACKS
ELECTRON BEAM TUBE
PWR JACK
LED
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Review Theory
Suppose an electron enters a region ofspace at a right angle to a uniform magneticfield. The electron will move with constantspeed in a circular path of radius (R). FromNewton’s second law:
where (v) is the velocity of the electron, (B)is the magnetic field strength, (e) is theelectronic charge, and (m) is the mass ofthe electron.
e Bm
R
2
vv=
12
m eV2v =
em
2 VB R
2= ( )
The velocity of the electron can be foundfrom its kinetic energy. If the electronaccelerates through a potential difference (V)before it enters the field, its kinetic energywill be given by:
Combining these equations gives anexpression for the ratio of the charge-to-mass ratio of the electron.
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The ExperimentGetting Started
An electron beam is emitted from an“electron gun” located below the anodesurface as shown in Figure 2. The electronsin the beam acquire a kinetic energy byaccelerating through a potential differenceV. If a current is passed through theHelmholtz coils, the resulting magnetic fieldwill bend the beam into a circular path.
By adjusting the current, the beam will bendinto one of four circular grooves cut into theanode surface. Each groove is filled with aphosphor that will fluoresce under electron
bombardment. The radius of the electronbeam trajectory (R) is related to the grooveradius (r) by the equation:
where d = .002 m. A small amount of argonin the tube makes the electron beam visible.
1. Discuss the theory and the experiment.Plan a way to share the workload.Managers: select a discussion question.
2. Decide on a format to record data andobservations in your lab notebook.Include the SI units for all parameters.
Rr2
1dr
2
= + Êˈ¯
d
FLUORESCENTMATERIALIN GROOVE
ELECTRONGUN
ANODE
ELECTRONBEAMRADIUS = RENERGY = eV
r GROOVERADIUS
Figure 2. Schematic diagram of electron beam tube.
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5Copyright ©2000-2004 J. A. Panitz HOME ▼
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Prepare for Data Collection
1. Select the Helmholtz coil assembly youused before. Connect the plug at theend of the AC adapter cord to the powerjack on its base. See Figure 1. Plug theadapter into a wall receptacle.
2. Darken the room. An electron beam willemerge from the anode (see Figure 3A).Wait 15 m for the beam to stabilize.
A B
Figure 3. Electron beam tube.(A) without B-field. (B) with B-field applied.
3. Use a multimeter to measure theaccelerating voltage (V) that appearsacross the pin jacks on the base of thee/m apparatus. See Figure 1.
4. Connect the components as shown inFigure 4. The Helmholtz coils are wiredin series inside the base of theapparatus. When the power supply isturned on current will flow in the samedirection in each coil. The banana jacksmarked “FIELD” are mounted on thebase of the apparatus.
POWERSUPPLY
COIL 1
MULTIMETER
+
COIL 2
I
II
FIELD
Figure 4. Schematic diagram of the e/m apparatus.
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6Copyright ©2000-2004 J. A. Panitz HOME ▼
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Prepare for Data Collection
The current required to deflect the electronbeam to the two outer grooves will berecorded. The magnetic field strength will befound from Helmholtz theory. e/m will becalculated and compared to the acceptedvalue of 1.758796 ± 0.000019 x 1011 C/kg.
5. Turn on the power supply and adjust itsoutput current until the electron beambegins to deflect.
6. The power supply may create anexternal magnetic field. Position thepower supply so that it does notinfluence the beam’s position.
7. Use a compass to align the magneticaxis of the Helmholtz coils with theearth’s magnetic field.
Perform the alignment carefully.The earth’s field must add to thefield of the Helmholtz coils.
Measure a Deflection Current
1. Adjust the power supply current tocenter the electron beam on theoutermost groove where r = 0.020 m.
2. Use a multimeter to record themagnitude and the sign of the current.
The phosphor in a groove willdegrade in the beam. Minimize thetime the beam spends in a groove.
3. Repeat steps 1 and 2 eleven times toimprove the accuracy of reading theHelmholtz coil current.
4. Record the mean value of thecurrent for the twelve readings.
5. Repeat steps 1 - 4 for the next groovewhere r = 0.015 m.
6. Reverse the direction of the current andrepeat the procedure for both grooves.
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Find the Magnetic Field Strength
Find the value of the magnetic field strength(B). The magnetic field strength is the sumof the magnetic field strength found fromHelmholtz theory and the horizontalcomponent of the earth’s magnetic field (Be).Recall the number of turns in the coils(N = 119) and their radii (Rc = 0.102 m). InAlbuquerque, NM Be= 2.36 x 10
-5 Tesla.
1. Calculate the electron beamradius for each groove.
2. Calculate the magnetic fieldstrength (B) at each groove.
Caution. Reverse the sign of Be ifthe beam direction was reversed.
Compare e/m with the Accepted Value
1. Calculate a value for e/m ateach groove radius.
2. Compare the calculated and theaccepted value of e/m at eachgroove radius.
The accepted value of e/m is accuratelyknown (1.758796 ± 0.000019 x 1011 C/kg).
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8Copyright ©2000-2004 J. A. Panitz HOME ▼
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Team Discussion
1. Summarize the experiment and theconclusions that were reached. Go tothe blackboard, sketch the essentialfeatures of the apparatus and comparethe results from all the teams.
2. Discuss the factors that affect theuncertainty in the experimental value ofthe magnetic field strength. Justify thestatement “The magnetic field strengthis the sum of the magnetic field strengthfound from Helmholtz theory and thehorizontal component of the earth’smagnetic field (Be)”..
3. Examine the equation for the radius ofthe electron beam (R) when theelectrons originate a distance (d) belowthe anode. Discuss the limit when d = 0and when r >>d. Derive the equation.
4. Describe a method to determine thedirection of current flow in the Helmholtzcoils from the deflection of the electronbeam. Prepare a diagram to clarify youranalysis.
5. A research investigator would like todetermine the charge-to-mass ratio ofthe electron on an orbiting satellite.Develop a procedure that could be usedto make this measurement with anelectron beam tube. Discuss thedifficulties that could be encountered.
6. Discuss how to use the principle of thee/m beam tube to measure thecomposition of an ion beam. Assumethe beam contains the ion species: H+,H2O
+, CO+, and N+. Discuss a practicaluse for such a device.
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9Copyright ©2000-2004 J. A. Panitz HOME
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Finish Up
1. Enter a brief summary of the experimentand the team discussion in your labnotebook.
2. Quit the software menu.
3. Manager: Ensure that all componentsand hardware used by your team arereturned to their original state andplaced in their original location.
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10Copyright ©2000-2004 J. A. Panitz HOME
ELECTRONBEAM TUBE
Figure 5. Specific charge of electron apparatus.
BASE
Warning: The electron beam tubeis fragile. If it must be handled,support the tube only by its blackplastic base. The tube and baseshould be numbered. Select a tubeand base with the same number.
Materials and Supplies
Specific charge of electron apparatus.(Figure 5).1 each CENCO CP71267-00.1 each Power supply. Internal.
UNM0003T01.1 each AC Adapter (6 VDC @ 1.2 A).
MagneTek WDU6-1200.
3 each Patch Cord. 24” Banana (Black).Pomona 1440-24-0.
1 each Desk fixture with 25 Wincandescent lamp bulb.
1 each Compass.CENCO WLS-22400-19.
1 each Power Supply (30 V @ 6 A).Good Will Instrument Co., Ltd.Model GPR-3060.
1 each Multimeter (Zmin =10 MW).3 1/2 Digit. Wavetek 15XL.
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r
d
GROOVE RADIUS
ANODE
D
ELECTRONTRAJECTORY
D2 = r 2 + d2
R =D
2=
1
2r
2 + d2
R =r
21+
d
r
Êˈ¯
2
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Copyright ©2000-2003 J. A. Panitz RETURN
Resistance (0 - 2000 MW)
1. Connect one test lead to the commoninput (COM) and another test lead tothe Volt or Ohm input (V W).
2. Set the function/range switch to (W), andto the highest resistance range: 2000M(2000 million ohms full scale).
3. Place the ends of the test leads acrossthe component.
4. Read the resistance. Select a lowerrange (if feasible) to give a higherresolution. The display in the figure atthe left indicates a resistance greaterthan the full scale value.
5. Measure the resistance of the test leadsby touching (shorting) the ends of theleads together. Deduct the test leadresistance from the resistance of thecomponent that was measured.
6. Set the function/range switch OFF.
V W COM 200 mA 10 A
OFFOFFV V~
W A
A~
Wavetek 15XL Digital Multimeter(M = 106, k = 103, m = 10-3, m = 10-6 )
Set the function/range switch to the OFFposition when the multimeter is not in use.CAUTION: Be sure that no current will flowin the component(s) to be measured.
1.
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Copyright ©2000-2003 J. A. Panitz RETURN
DC Voltage (0 - 1000 V)
1. Connect one test lead to the commoninput (COM) and another test lead tothe Volt or Ohm input (V W). Read thenote at the meter input.
2. Set the function/range switch to (V ),and to the highest DC voltage range:1000 V (1000 volts full scale).
3. Place the ends of the test leads acrossthe circuit element.
4. Read the voltage and the polarity. Selecta lower range (if feasible) to give ahigher resolution.
Range overload is indicated by a“1” or a “-1” in the display with allthe other digits blanked.
5. Select a higher range. If the highestvoltage range is in use, interrupt themeasurement immediately.
6. Set the function/range switch OFF.
V W COM 200 mA 10 A
OFFOFFV V~
W A
A~
Wavetek 15XL Digital Multimeter(M = 106, k = 103, m = 10-3, m = 10-6 )
Set the function/range switch to the OFFposition when the multimeter is not in use.
00.0
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Copyright ©2000-2003 J. A. Panitz RETURN
Wavetek 15XL Digital Multimeter(M = 106, k = 103, m = 10-3, m = 10-6 )
Set the function/range switch to the OFFposition when the multimeter is not in use.
V W COM 200 mA 10 A
OFFOFFV V~
W A
A~
00.0DC Current (0 - 200 mA)
1. Connect one test lead to the commoninput (COM) and another test lead tothe yellow input labeled 200 mA.
The input has a 200 milliamperefuse installed. Check the fuse ifcurrent is not detected.
2. Set the function/range switch to (V ),and to the highest DC current range forthis input: 200 mA (200 milliamperes fullscale).
Remove power from the circuit tobe tested (no current should flow).
3. Connect the test leads securely in serieswith a circuit element.
4. Apply power to the circuit being tested.
5. Read the current. Select a lower range(if feasible) to give a higher resolution.
6. Set the function/range switch OFF.
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Copyright ©2000-2003 J. A. Panitz RETURN
Wavetek 15XL Digital Multimeter(M = 106, k = 103, m = 10-3, m = 10-6 )
Set the function/range switch to the OFFposition when the multimeter is not in use.
V W COM 200 mA 10 A
OFFOFFV V~
W A
A~
00.0DC Current (0 - 10 A)
1. Connect one test lead to the commoninput (COM) and another test lead tothe yellow input labeled 10 A.
The input has a 10 ampere fuseinstalled. Check the fuse if currentis not detected.
2. Set the function/range switch to (V ),and to the only DC current range for thisinput: 10 A (10 amps full scale).
Remove power from the circuit tobe tested (no current should flow).
3. Connect the test leads securely in serieswith a circuit element.
4. Apply power to the circuit being tested.
5. Read the current.
6. Set the function/range switch OFF.
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Copyright ©2000-2004 J. A. Panitz RETURN
AC Voltage (0 - 750 V)
1. Connect one test lead to the commoninput (COM) and another test lead tothe Volt or Ohm input (V W). Read thenote at the meter input.
2. Set the function/range switch to (V~),and to the highest AC voltage range:750 V (750 volts full scale).
3. Place the ends of the test leads acrossthe circuit element.
4. Read the voltage and the polarity. Selecta lower range (if feasible) to give ahigher resolution.
Range overload is indicated by a“1” or a “-1” in the display with allthe other digits blanked.
5. Select a higher range. If the highestvoltage range is in use, interrupt themeasurement immediately.
6. Set the function/range switch OFF.
V W COM 200 mA 10 A
OFFOFFV V~
W A
A~
Wavetek 15XL Digital Multimeter(M = 106, k = 103, m = 10-3, m = 10-6 )
Set the function/range switch to the OFFposition when the multimeter is not in use.
00.0
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Copyright ©2000-2003 J. A. Panitz RETURN
1. Locate the power switch.
Turn the power supply off.
2. Rotate both voltage controls to theirminimum position (fully counterclockwise). See Figure 1.
3 Rotate both current controls to theirmaximum position (fully clockwise).
4. Connect the load between the positive(+) and the negative (-) terminal.
5. Connect the ground terminal (GND) asneeded.
6. Plug the line cord into a wall receptacle.
7. Turn on the power supply.
8. Rotate the voltage controls to obtain thedesired current.
- +GND
VOLTAGE CURRENT
COURSE FINE FINE
POWER
COURSE
Figure 1. Good Will Instrument Company, Ltd power supply(model GPR-3060).
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Helmholtz Coil Internal Power Supply Installation
1. Remove top cover (4 Screws).
2. Remove 4 nuts and lock washers holding tube bracket and move tube bracket to allow accessto wiring.
3. Disconnect wires from and remove binding posts (front panel).
4. Disconnect and remove circuit breaker (rear panel).
5. Move tube bracket out of coil assembly. Unsolder and remove shunt resistor and wiresattached to tube socket.
6. Remove old (magnetic) mounting hardware from tube socket and replace with stainless steelor brass (nonmagnetic) hardware.
7. Solder Tube Socket Cable Assembly (0003A05) to tube socket. Set tube socket assemblyaside.
8. Snap 5/8" hole plug into circuit breaker hole in rear panel.
9. Install Pin Jack Cable Assemblies (0003A06-01, 02) in “Filament” holes in front panel.Black cable assembly goes in hole marked ‘Cathode’.
10. Push 5/16" vinyl grommet into “Plate” hole in front panel.
11. Install Power Jack Cable Assembly (0003A04) and LED Indicator Cable. Assembly(0003A03) into “Grid” and “Plate” holes respectively. Route cables outside of Helmholtzcoils.
12. Move tube bracket assembly back into Helmholtz coil assembly and route cable as above.Solder Pin Jack Cable Assemblies to tube socket.
13 Install tube bracket and power supply mounting bracket (4 nuts and lock washers).
14. Connect transistor extension cable assembly to transistor Q1 and install power supply board(2 screws).
15. Attach cables to power supply board.
16. Test and adjust power supplies for proper tube operation.
17. Install top cover (4 screws).
18. Done.
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DWG NO SH REV
NONE SHEETCAD GENERATED DRAWING, MANUAL CHANGES NOT ALLOWED
PLOTTED
REV DESCRIPTION
REVISIONS
DATE APPROVED
UNIVERSITY OF NEW MEXICO
ALBUQUERQUE, NEW MEXICO, USA 87131ELECTRONICS SHOP
DEPARTMENT OF PHYSICS AND ASTRONOMY
DRAWN
DESIGNER
APPROVED
ENGINEER
DWG FILENAME
DATE
DATE
DATE
DATE
SCALE
SIZE
TITLE
DWG NO REV
BMon Sep 11, 2000 15:21:33
21
J2
21
J1
+t F11.35A
R5750
C1120u
FILAMENTCURRENT
2.5V
D11N4002
VREF
VR1TL431CLP
2.5V
R1
180
CW
R410K
R9
10KSMF.10uC2
R362K
UNUSED PARTS
6 -
5 +
7
LMC660CN
U1:B
11V-
4
V+
U1:E
VINC3
.01u
SHUNT VOLTAGEREGULATOR VR1
VIN
0003T0101 1 OF 2
FIL_OUT
CONTROLAMPLIFIER U1:A
CURRENTREGULATORTRANSISTOR Q2
A
NOTES:UNLESS OTHERWISE SPECIFIED:1. ALL 5% RESISTORS ARE 1/4 W CARBON FILM WITH VALUES IN OHMS.2. ALL 1% RESISTORS ARE 1/4 W METAL FILM WITH VALUES IN OHMS.3. ALL POLARIZED CAPACITORS ARE TANTALUM ELECTROLYTIC WITH VALUES IN MICROFARADS.4. FOR FABRICATION DETAILS SEE DRAWING 0003T0102 REV A.5. FOR ARTWORK SEE DRAWING 0003T0103 REV A.6. FOR ASSEMBLY SEE DRAWING 0003T0104 REV A.
2N6036Q2
J. BEHRENDT
1 OF 2
FIL_RET
7/11/00
2 -
3 +
1
LMC660CN
U1:A
R11
0.50 1W
A0003T0101
BEAM TUBE POWER SUPPLY SCHEMATIC DIAGRAM
0003t01a.sch
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BCAD GENERATED DRAWING, MANUAL CHANGES NOT ALLOWED
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PLOTTEDMon Sep 11, 2000 15:22:30
R122.4
1W
.10uC5
SMF
VREF
VIN
4 -IN
1 +IN
3-OUT
2+OUT
U35A48S
CW
R610K
R10
10K
9 -
10 +
8
U1:CLMC660CN
Q32N4401
3.0KR13
R72.4
1W
R17240K
1/2W
R16330K1/2W
.10uC4
SMF 0-33V DC-DC CONVERTER U3
0-200V DC-DC CONVERTER U2
CONTROL AMP. U1C, Q3
CONTROL AMP. U1D, Q1
VIN
4 -IN
1 +IN
3-OUT
2+OUT
U25A200S
13 -
12 +
14
LMC660CN
U1:DQ1
2N4401
VREF
R153.0K
CW
R210K
R8
10K
R1439K
400V.10uC8
PP
0-200V
R1810K
0003T0101 2 OF 2
C9
500V4700p
A
0-33VFIL_OUT
FIL_RET
0003T0101
BEAM TUBE POWER SUPPLY SCHEMATIC DIAGRAM
2 OF 2
12
43
C6
50V4.7u
TANT.
C7
50V4.7u
TANT.
A
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Exposure Mask
Laser print on an 8-1/2” x 11” sheet of tracing Vellum (Dietzgen196M100 or equivalent). Print in Landscape orientation.
The exposure mask must be printed fullsize. Deselect the Shrink Oversized Pagesto Paper Size option (Acrobat 5.0) or theFit To Page option (Acrobat 4.0). To seethis option in Mac OS you must chooseAcrobat x.x from a pop-up menu in the Printdialog box. In Windows, this option is visiblein the Print dialog box. In Mac OS deselectall PostScript™ Options found in the PageSetup dialog box.
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BILL OF MATERIALS DATE: 9/11/00
ELECTRON BEAM TUBE POWER SUPPLY
BOM0003T01 REV. ARefDes Description Part Number MfrC1 CAP., ELECTROLYTIC, 120uF @ 50WV EEU-FA1H121 PANASONICC2 CAP., STACKED METAL FILM, .10uF ECQ-V1H104JL PANASONICC3 CAP., CERDISC, .01uF ECK-FIH103ZF PANASONICC4 CAP., STACKED METAL FILM, .10uF ECQ-V1H104JL PANASONICC5 CAP., STACKED METAL FILM, .10uF ECQ-V1H104JL PANASONICC6 CAP., TANTALUM ELECT. ECS-F1HE475K PANASONICC7 CAP., TANTALUM ELECT. ECS-F1HE475K PANASONICC8 CAP., PP, 400WV, .10uF ECW-F4104JB PANASONICC9 CAP., CERDISC, 500WV, 4700pF ECK-D2H472KB5 PANASONICD1 RECTIFIER, 1A, 200V 1N4002 MOTOROLAF1 FUSE, PTC RESETTABLE, 1.35A RUE135 RAYCHEMJ1 HEADER, .156, 2-CKT 26-48-1025 MOLEXJ2 HEADER, 2-PIN, .100 22-23-2021 MOLEXJ3 HEADER, .156, 4-CKT 26-48-1045 MOLEXQ1 TRANSISTOR, NPN SILICON 2N4401 ONQ2 TRANSISTOR, PNP DARLINGTON 2N6036 ONQ3 TRANSISTOR, NPN SILICON 2N4401 ONR1 RESISTOR, CF, 1/4 W,5% CFR-25JB YAGEOR2 POT., TRIMMER 3386F-103 BOURNSR3 RESISTOR, CF, 1/4 W,5% CFR-25JB YAGEOR4 POT., TRIMMER 3386F-103 BOURNSR5 RESISTOR, CF, 1/4 W,5% CFR-25JB YAGEOR6 POT., TRIMMER 3386F-103 BOURNSR7 RES., MOX, 1W, 5% RSF100JB YAGEOR8 RESISTOR, CF, 1/4 W,5% CFR-25JB YAGEOR9 RESISTOR, CF, 1/4 W,5% CFR-25JB YAGEOR10 RESISTOR, CF, 1/4 W,5% CFR-25JB YAGEOR11 RESISTOR, MOX, 1 W, 5% RSF100JB YAGEOR12 RES., MOX, 1W, 5% RSF100JB YAGEOR13 RESISTOR, CF, 1/4 W,5% CFR-25JB YAGEOR14 RESISTOR, CF, 1/4 W,5% CFR-25JB YAGEOR15 RESISTOR, CF, 1/4 W,5% CFR-25JB YAGEOR16 RESISTOR, CF, 1/2W, 5% CFR-50JB YAGEOR17 RESISTOR, CF, 1/2W, 5% CFR-50JB YAGEOR18 RESISTOR, CF, 1/4 W,5% CFR-25JB YAGEOU1 CMOS QUAD OP AMP LMC660CN NATIONALU2 CONVERTER, DC-DC 5A200S PICOU3 CONVERTER, DC-DC 5A48S PICOVR1 REGULATOR, SHUNT VOLTAGE TL431CLP TI
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DWG NO SH REV
NONE SHEETCAD GENERATED DRAWING, MANUAL CHANGES NOT ALLOWED
PLOTTED
REV DESCRIPTION
REVISIONS
DATE APPROVED
UNIVERSITY OF NEW MEXICO
ALBUQUERQUE, NEW MEXICO, USA 87131ELECTRONICS SHOP
DEPARTMENT OF PHYSICS AND ASTRONOMY
DRAWN
DESIGNER
APPROVED
ENGINEER
DWG FILENAME
DATE
DATE
DATE
DATE
SCALE
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TITLE
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BFri Dec 08, 2000 11:42:20
0003A050003A03
0003A024
123
ITEM DESCRIPTION PART NO.POWER JACK CABLE ASSEMBLYLED INDICATOR CABLE ASSEMBLYTUBE SOCKET CABLE ASSEMBLYTRANSISTOR EXTENSION CABLE ASSEMBLY
0003A04
Q1
P/O POWER SUPPLY MOUNTING BRACKET ASSEMBLY 0003A01
4
P4
5 PIN JACK CABLE ASSEMBLY, RED 0003A06-02
6 PIN JACK CABLE ASSEMBLY, BLK 0003A06-01
P2
1
J2
J1P1 BEAM TUBE POWER SUPPLY ASSY. 0003T01
2
0003T02 1 OF 1
J3 P3
XV1
P/O E/M APPARATUS
3
5
A
ADDED ITEMS 5 AND 6A 12/7/00
J. BEHRENDT
0003T021 OF 1
DEFLECTION TUBE POWER SUPPLY INTERCONNECTION DIAGRAM
6
A
9/7/00
0003t02A.sch
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UNLESS OTHERWISE SPECIFIEDDIMENSIONS AND TOLERANCES ARE IN INCHES ANDAPPLY TO THE FINISHED PART
TOLERANCE ON:ANGLES2 PLACE DEC 3 PLACE DEC
0.02 0.005 1/2MATL
FINISH
DRAWN
DESIGNER
APPROVED
ENGINEER
DATE
DATE
DATE
DATE
UNIVERSITY OF NEW MEXICO
ALBUQUERQUE, NEW MEXICO, USA 87131ELECTRONICS SHOP
DEPARTMENT OF PHYSICS AND ASTRONOMY
DATEREV DESCRIPTION
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APPROVED
8/9/00
0003A01.DWG
J. BEHRENDT
0003A0101
REMOVE BURRS AND BREAK ALL EDGES.
0003A0101
POWER SUPPLY MOUNTING BRACKET
FABRICATION.062 ALUMINUM
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UNLESS OTHERWISE SPECIFIEDDIMENSIONS AND TOLERANCES ARE IN INCHES ANDAPPLY TO THE FINISHED PART
TOLERANCE ON:ANGLES2 PLACE DEC 3 PLACE DEC
0.02 0.005 1/2MATL
FINISH
DRAWN
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APPROVED
ENGINEER
DATE
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UNIVERSITY OF NEW MEXICO
ALBUQUERQUE, NEW MEXICO, USA 87131ELECTRONICS SHOP
DEPARTMENT OF PHYSICS AND ASTRONOMY
DATEREV DESCRIPTION
REVISIONS
APPROVED
8/9/00
0003A01.DWG
J. BEHRENDT
ITEM QTY DESCRIPTION PART NUMBER MANUFACTURER
NUT, CAPTIVE, #4-40 FLUSH1
1
SCREW, PAN HEAD, SLOTTED, #6-32 X 14
42
LOCK WASHER, INT. TOOTH, #65
2
21 SCREW, PAN HEAD, PHILLIPS, #4-40 X 14, 31 LOCK WASHER, INT. TOOTH, #4
23222N6036K10-58
STANDOFF, HEX, THREADED, #6 X 12 TRANSISTOR, PNP DARLINGTON, 2N6036INSULATOR PAD, HEATSINK, TO-220
17
18
26
H. H. SMITHMOTOROLA
AAVID
9
2
3
4
6
7
5
8 2 PL
0003A0102
POWER SUPPLY MOUNTING BRACKET
ASSEMBLY
0003A0102
NOTES:
1. PRESS CAPTIVE NUT INTO REAR OF BRACKET.2. ASSEMBLE REMAINING COMPONENTS.
POWER SUPPLY MOUNTING BRACKET
9
1 0003A01
1
1
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CAD GENERATED DRAWING, MANUAL CHANGES NOT ALLOWED
TITLE
SIZE DWG NO REV
SCALE SHEET 1 OF 11/1
B -DWG FILENAME
UNLESS OTHERWISE SPECIFIEDDIMENSIONS AND TOLERANCES ARE IN INCHES ANDAPPLY TO THE FINISHED PART
TOLERANCE ON:ANGLES2 PLACE DEC 3 PLACE DEC
0.02 0.005 1/2MATL
FINISH
DRAWN
DESIGNER
APPROVED
ENGINEER
DATE
DATE
DATE
DATE
UNIVERSITY OF NEW MEXICO
ALBUQUERQUE, NEW MEXICO, USA 87131ELECTRONICS SHOP
DEPARTMENT OF PHYSICS AND ASTRONOMY
DATEREV DESCRIPTION
REVISIONS
APPROVED
8/22/00
0003A02.DWG
J. BEHRENDT
0003A02
2.7 REF.
ITEM QTY DESCRIPTION PART NUMBER MANUFACTURERWIRE, 24 AWG, 1000V, PVC, 80°C, GRN, 2 12 "1 1 1550 ALPHA
TERMINAL, CRIMP, 22-30 AWG, TIN4 3 08-50-0114 MOLEXHOUSING, CRIMP TERM., .100" O/C, 3 CKT.5 1 22-01-2031 MOLEX
2 1 WIRE, 24 AWG, 1000V, PVC, 80°C, YEL, 2 12 " 1550 ALPHA3 1 WIRE, 24 AWG, 1000V, PVC, 80°C, BLU, 2 12 " 1550 ALPHA
1
2
3
4
5
NOTES:
1. STRIP ONE END OF WIRE 18 " AND APPLY TERMINAL USING APPROVED CRIMP.2. STRIP REMAINING END OF WIRE 316 " AND TIN.3. INSERT TERMINATED WIRE IN HOUSING AS SHOWN.
0003A02
TRANSISTOR EXTENSIONCABLE ASSEMBLY
-
SH 1 REVDWG NO
CAD GENERATED DRAWING, MANUAL CHANGES NOT ALLOWED
TITLE
SIZE DWG NO REV
SCALE SHEET 1 OF 11/1
B -DWG FILENAME
UNLESS OTHERWISE SPECIFIEDDIMENSIONS AND TOLERANCES ARE IN INCHES ANDAPPLY TO THE FINISHED PART
TOLERANCE ON:ANGLES2 PLACE DEC 3 PLACE DEC
0.02 0.005 1/2MATL
FINISH
DRAWN
DESIGNER
APPROVED
ENGINEER
DATE
DATE
DATE
DATE
UNIVERSITY OF NEW MEXICO
ALBUQUERQUE, NEW MEXICO, USA 87131ELECTRONICS SHOP
DEPARTMENT OF PHYSICS AND ASTRONOMY
DATEREV DESCRIPTION
REVISIONS
APPROVED
8/23/00
0003A03.DWG
J. BEHRENDT
0003A03
ITEM QTY DESCRIPTION PART NUMBER MANUFACTURER
TUBING, HEAT SHRINKABLE, 3 32 X 12 2 2 FIT-221-3 32 ALPHA
TERMINAL, CRIMP, 22-30 AWG, TIN5 2 08-50-0114 MOLEXHOUSING, CRIMP TERM., .100" O/C, 2 CKT.6 1 22-01-3027 MOLEX
3 1 WIRE, 24 AWG, 1000V, PVC, 80°C, RED, 7 " 1550 ALPHA4 1 WIRE, 24 AWG, 1000V, PVC, 80°C, BLK, 7 " 1550 ALPHA
12
5
6
NOTES:
1. STRIP ONE END OF EACH WIRE 316 ", TIN AND SOLDER TO LED (RED TO ANODE, BLACK TO CATHODE.)2. INSTALL HEAT SHRINK TUBING.3. TWIST WIRES TOGETHER.4. STRIP OTHER END OF EACH WIRE 18 " AND APPLY TERMINAL USING APPROVED CRIMP.5. INSERT TERMINATED WIRES IN HOUSING AS SHOWN.
0003A03
LED INDICATOR CABLE ASSEMBLY
2
3
4
LN21RPHLLED, RED DIFFUSED1 1 PANASONIC
7.2 REF.
-
SH 1 REVDWG NO
CAD GENERATED DRAWING, MANUAL CHANGES NOT ALLOWED
TITLE
SIZE DWG NO REV
SCALE SHEET 1 OF 11/1
B -DWG FILENAME
UNLESS OTHERWISE SPECIFIEDDIMENSIONS AND TOLERANCES ARE IN INCHES ANDAPPLY TO THE FINISHED PART
TOLERANCE ON:ANGLES2 PLACE DEC 3 PLACE DEC
0.02 0.005 1/2MATL
FINISH
DRAWN
DESIGNER
APPROVED
ENGINEER
DATE
DATE
DATE
DATE
UNIVERSITY OF NEW MEXICO
ALBUQUERQUE, NEW MEXICO, USA 87131ELECTRONICS SHOP
DEPARTMENT OF PHYSICS AND ASTRONOMY
DATEREV DESCRIPTION
REVISIONS
APPROVED
8/24/00
0003A04.DWG
J. BEHRENDT
0003A04
ITEM QTY DESCRIPTION PART NUMBER MANUFACTURER
TUBING, HEAT SHRINKABLE, 18 X 12 2 2 FIT-221-18 ALPHA
TERMINAL, CRIMP, 18-24 AWG, BRASS5 2 08-50-0106 MOLEXHOUSING, CRIMP TERM., .156" O/C, 2 CKT.6 1 09-50-8021 MOLEX
3 1 WIRE, 18 AWG, 1000V, PVC, 80°C, WHI, 7 " 1555 ALPHA4 1 WIRE, 18 AWG, 1000V, PVC, 80°C, BLK, 7 " 1555 ALPHA
12
5
6
NOTES:
1. STRIP ONE END OF EACH WIRE 14 ", TIN AND SOLDER TO POWER JACK (WHITE TO PIN TERMINAL, BLACK TO SLEEVE TERMINAL.)2. INSTALL HEAT SHRINK TUBING.3. TWIST WIRES TOGETHER.4. STRIP OTHER END OF EACH WIRE 18 " AND APPLY TERMINAL USING APPROVED CRIMP.5. INSERT TERMINATED WIRES IN HOUSING AS SHOWN.
0003A04
POWER JACK CABLE ASSEMBLY
2
3
4
722AJACK, PANEL, MINIATURE POWER1 1 SWITCHCRAFT
7.6 REF.
SLEEVESHUNTTERMINAL
SLEEVE TERMINAL
PIN TERMINAL
JACKREARVIEW
-
SH 1 REVDWG NO
CAD GENERATED DRAWING, MANUAL CHANGES NOT ALLOWED
TITLE
SIZE DWG NO REV
SCALE SHEET 1 OF 11/1
B -DWG FILENAME
UNLESS OTHERWISE SPECIFIEDDIMENSIONS AND TOLERANCES ARE IN INCHES ANDAPPLY TO THE FINISHED PART
TOLERANCE ON:ANGLES2 PLACE DEC 3 PLACE DEC
0.02 0.005 1/2MATL
FINISH
DRAWN
DESIGNER
APPROVED
ENGINEER
DATE
DATE
DATE
DATE
UNIVERSITY OF NEW MEXICO
ALBUQUERQUE, NEW MEXICO, USA 87131ELECTRONICS SHOP
DEPARTMENT OF PHYSICS AND ASTRONOMY
DATEREV DESCRIPTION
REVISIONS
APPROVED
8/24/00
0003A05.DWG
J. BEHRENDT
0003A05
ITEM QTY DESCRIPTION PART NUMBER MANUFACTURER
WIRE, 18 AWG, 1000V, PVC, 80°C, GRN, 8 "2 1 1555 ALPHA
TERMINAL, CRIMP, 18-24 AWG, BRASS5 4 08-50-0106 MOLEXHOUSING, CRIMP TERM., .156" O/C, 4 CKT.6 1 09-50-8041 MOLEX
3 1 WIRE, 18 AWG, 1000V, PVC, 80°C, WHI, 8 " 1555 ALPHA4 1 WIRE, 18 AWG, 1000V, PVC, 80°C, BLK, 8 " 1555 ALPHA
12 5
6
NOTES:
1. STRIP ONE END OF EACH WIRE 3 8 " AND TIN.2. STRIP OTHER END OF EACH WIRE 18 " AND APPLY TERMINAL USING APPROVED CRIMP.3. INSERT TERMINATED WIRES IN HOUSING AS SHOWN.
0003A05
34
1555WIRE, 18 AWG, 1000V, PVC, 80°C, RED, 8 "1 1 ALPHA
TUBE SOCKET CABLE ASSEMBLY
8.5 REF.
-
SH 1 REVDWG NO
CAD GENERATED DRAWING, MANUAL CHANGES NOT ALLOWED
TITLE
SIZE DWG NO REV
SCALE SHEET 1 OF 11/1
B -DWG FILENAME
UNLESS OTHERWISE SPECIFIEDDIMENSIONS AND TOLERANCES ARE IN INCHES ANDAPPLY TO THE FINISHED PART
TOLERANCE ON:ANGLES2 PLACE DEC 3 PLACE DEC
0.02 0.005 1/2MATL
FINISH
DRAWN
DESIGNER
APPROVED
ENGINEER
DATE
DATE
DATE
DATE
UNIVERSITY OF NEW MEXICO
ALBUQUERQUE, NEW MEXICO, USA 87131ELECTRONICS SHOP
DEPARTMENT OF PHYSICS AND ASTRONOMY
DATEREV DESCRIPTION
REVISIONS
APPROVED
12/7/00
0003A02.DWG
J. BEHRENDT
0003A06
ITEM QTY DESCRIPTION PART NUMBER MANUFACTURERTIP JACK, INSULATED, STANDARD, BLK1 1 105-0803-001 JOHNSON
2 1 TUBING, HEAT SHRINKABLE, 1/8" X 1/2" FIT-221-1/8 ALPHA3 1 WIRE, 24 AWG, 1000V, PVC, 80°C, BLK, 6 " 1550 ALPHA
NOTES:
1. STRIP BOTH ENDS OF WIRE 3/8", LOOP, ATTACH ONE END TO JACK AND SOLDER.2. INSTALL HEAT SHRINK TUBING.
0003A06
PIN JACK CABLEASSEMBLY
6.6 REF
2 3
1
PART NO. 0003A06-01
ITEM MANUFACTURERQTY DESCRIPTION PART NUMBER
FIT-221-1/8105-0802-001
1550WIRE, 24 AWG, 1000V, PVC, 80°C, RED, 6 "TUBING, HEAT SHRINKABLE, 1/8" X 1/2"TIP JACK, INSULATED, STANDARD, RED
123 1
1 1 JOHNSONALPHAALPHA
PART NO. 0003A06-02
-
UNM PROPIETARY AND CONFIDENTIAL INFORMATION
Sheet:
Rev:Size:
Date:
Prepared By:
Approved By:
Scale:
Dwg #:
TITLE:
UNDERGRADUATE LABORATORIESPhone: (505) 277-5805 FAX: (505) 277-1520
PENDULUM SUPPORT
ANSI B A
1/2
JAP
07.11.00 1 OF 2
161L-017
4.875
MAGNETCENTER LINEHELMHOLTZ COILS
(Ø20.4 cm)
ITEM 2
ITEM 3
ITEM 1 SHRINK TUBING
Ø.188 REF.
2.00 REF.
PIN HOLE
1.000 TYP.
1.00
SEE NOTE 7
MAGNET DETAILSCALE 1/1
SEE NOTE 6
2 cm (REF)
30.00 cm
NOTES:1. MATERIAL: ALUMINUM (6061-T6).2. FINISH: #32 OR BETTER, ALL OVER (NO SCRATCHES).3. BLACK ANODIZE. LIGHT OIL (NO RESIDUE).4. BREAK EDGES AND CORNERS .005 MIN. R (SMOOTH).5. ALL DIMENSIONS ±0.005 UNLESS NOTED.6. ALNICO MAGNET. MAGNETIC MOMENT = 0.1 A-m2.7. NYLON MONOFILAMENT FISHING LINE (10 # TEST). LOOP AROUND MAGNET UNDER SHRINK TUBING. EXIT THROUGH PIN HOLE. HEAT TUBING TO SECURE.
ALIGNMENT SLOT (ORIENT AS SHOWN)
-
UNM PROPIETARY AND CONFIDENTIAL INFORMATION
Sheet:
Rev:Size:
Date:
Prepared By:
Approved By:
Scale:
Dwg #:
TITLE:
UNDERGRADUATE LABORATORIESPhone: (505) 277-5805 FAX: (505) 277-1520
PENDULUM SUPPORT
ANSI B A
1/2
JAP
07.12.00 2 OF 2
161L-017
SEE NOTE 6
16.625
Ø.193 REAM THRU Ø.516 REAM THRU
11.8114.375
Ø1.000
SEE NOTE 8
ITEM 1 (ROD)
ITEM 2 (TUBE)SCALE 1:1
Ø.500 REF
10.000
1.929
SEE NOTE 7
CHAMFER 45° x .031 DP. EACH END
CHAMFER 45° x .031
CHAMFER 0.063 x 45°
A
Ø.144 THRU. C'BORE Ø.375 x .250 DP.
Ø5.500
A
.500
ITEM 3 (BASE)
ALIGNMENT SLOTSEE NOTE 9
7.874
SEE NOTE 7
NOTES:1. MATERIAL: ALUMINUM (6061-T6).2. FINISH: #32 OR BETTER, ALL OVER (NO SCRATCHES).3. BLACK ANODIZE. LIGHT OIL (NO RESIDUE).4. BREAK EDGES AND CORNERS .005 MIN. R (SMOOTH).5. DECIMAL DIMENSIONS ±0.005. METRIC: ±0.01 cm.6. TUBING: Ø0.500 x .063 WALL. PAPER O.D. (SMOOTH).7. V-GROOVE. 0.020 WIDE x 0.020 DP.8. TAP (Ø.138) 6-32 UNC-2B x 0.500 ± 0.125 DP. EACH END.9. 0.020-0.030 WIDE x .031 DP. FILL WITH WHITE PAINT.
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Power SupplyUNM0003T01.pdfInstallation PhotoInstallation InstructionsSchematicSheet 1Sheet 2
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