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DIABLODe-rotated Imager of the Aurora Borealis in Low-Earth Orbit

Interim Review 1

DIABLODe-rotated Imager of the Aurora Borealis in Low-Earth Orbit

Interim Review 1Nicole Demandante

Laura FisherJason Gabbert

Lisa HewittLang KenneyNick Pulaski

Matt SandovalTim Sullivan

Advisors:Alex HoehnJoe Footdale

Nicole DemandanteLaura Fisher

Jason GabbertLisa Hewitt

Lang KenneyNick Pulaski

Matt SandovalTim Sullivan

Advisors:Alex HoehnJoe Footdale

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AgendaAgenda

Resolution of IssuesDesign UpdateTest PlanScheduleBudgetCurrent StatusCurrent Issues to be Resolved

Resolution of IssuesDesign UpdateTest PlanScheduleBudgetCurrent StatusCurrent Issues to be Resolved

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Request for ActionRequest for Action

“Re-evaluate the 'tombstone' to 'bearing ring' design features including the worm and gear”

Nutation simulation test has been redesigned

Bearing structure has been redesigned

“Re-evaluate the 'tombstone' to 'bearing ring' design features including the worm and gear”

Nutation simulation test has been redesigned

Bearing structure has been redesigned

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Design UpdateDesign Update

Mass: 42.0 kg Mass: 27.8 kg

96cm98cm

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Design UpdateDesign Update

New bearings – Kaydon “Reali-Slim”2 Angular Contact

4.25" ID x 4.75" OD0.25" Wide 0.09kg each

1 X-Type (4 point contact)7.5” ID x 8” OD0.15kg

New bearings – Kaydon “Reali-Slim”2 Angular Contact

4.25" ID x 4.75" OD0.25" Wide 0.09kg each

1 X-Type (4 point contact)7.5” ID x 8” OD0.15kg

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Design UpdateDesign Update

New preload designNew preload design

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Design UpdateDesign Update

Bearing structure1° Offset Test

Bearing structure1° Offset Test

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TestingTesting Component Tests

Camera Slip Ring Encoder Accelerometer Motor

Subsystem Tests Structural Motor with accelerometers, encoders Slip rings with encoders, camera, motor signal Signal conditioning

System Tests Measure accelerometer data Take pictures Use laser pointer 1º offset tilt

Software Tests Data collection: encoders and accelerometers Counter and index pulse reset Control loop with motors/encoders Calibration with full system

Component Tests Camera Slip Ring Encoder Accelerometer Motor

Subsystem Tests Structural Motor with accelerometers, encoders Slip rings with encoders, camera, motor signal Signal conditioning

System Tests Measure accelerometer data Take pictures Use laser pointer 1º offset tilt

Software Tests Data collection: encoders and accelerometers Counter and index pulse reset Control loop with motors/encoders Calibration with full system

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TestingTestingPointing within 3º

Component Test – EncoderMeasure noise on oscilloscopeTest signal conditioning

Software TestsQuantify frequency of dropped/added pulsesVerify that index pulse resets counterTest control loop with motors and encoders

System TestVerify pointing accuracy with laser pointer

Field of view minimum of 12ºComponent Test – Camera

Determine zoom needed for 12º FOVSubsystem Test – Structures

Take pictures through optics tube

Pointing within 3ºComponent Test – Encoder

Measure noise on oscilloscopeTest signal conditioning

Software TestsQuantify frequency of dropped/added pulsesVerify that index pulse resets counterTest control loop with motors and encoders

System TestVerify pointing accuracy with laser pointer

Field of view minimum of 12ºComponent Test – Camera

Determine zoom needed for 12º FOVSubsystem Test – Structures

Take pictures through optics tube

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TestingTestingTake pictures at 90º

Subsystem Test – StructuresMeasure pointing with laser pointerVerify mirror mounting accuracy

Image ClarityComponent Test – Slip Ring

Measure noise with LabVIEW and OscilloscopeQuantify amplitude and frequency of noiseExamine effects on USB transfer, motor control signal,

encoder signalSystem Tests

Record data with LabVIEWMeasure amplitude and frequency of vibrations with

accelerometersAnalyze encoder data to determine magnitude of motor

fluctuationsAnalyze pictures to quantify pixel smear

Take pictures at 90ºSubsystem Test – Structures

Measure pointing with laser pointerVerify mirror mounting accuracy

Image ClarityComponent Test – Slip Ring

Measure noise with LabVIEW and OscilloscopeQuantify amplitude and frequency of noiseExamine effects on USB transfer, motor control signal,

encoder signalSystem Tests

Record data with LabVIEWMeasure amplitude and frequency of vibrations with

accelerometersAnalyze encoder data to determine magnitude of motor

fluctuationsAnalyze pictures to quantify pixel smear

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TestingTesting Test bed range: 2 – 20 rpm

Component Test – MotorMeasure built-in speed output with oscilloscopeVerify voltage/speed curve

Subsystem Test – MotorMeasure encoder signal in LabVIEWUse encoders to verify voltage/speed after gearing

Nutation Simulation Subsystem Test – Structures

Measure pointing with laser pointerVerify 1º tilt

System TestRun full system tests with 1º tilt Analyze pixel smear, observe pointing error

Test Camera similar to flight Camera Component Test – Camera

Set shutter speed to 100ms

Test bed range: 2 – 20 rpm Component Test – Motor

Measure built-in speed output with oscilloscopeVerify voltage/speed curve

Subsystem Test – MotorMeasure encoder signal in LabVIEWUse encoders to verify voltage/speed after gearing

Nutation Simulation Subsystem Test – Structures

Measure pointing with laser pointerVerify 1º tilt

System TestRun full system tests with 1º tilt Analyze pixel smear, observe pointing error

Test Camera similar to flight Camera Component Test – Camera

Set shutter speed to 100ms

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ScheduleSchedule Ordering Parts Electronics Fabrication Component, Subsystem Testing

Ordering Parts Electronics Fabrication Component, Subsystem Testing

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ScheduleSchedule

Manufacturing & IntegrationManufacturing & Integration

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ScheduleScheduleSoftware, System TestingSoftware, System Testing

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BudgetBudget

Total Spent:$4349.56

(as of 2/3)

Expect to Spend:$699.45

(not including margin)

Total Budget:$5802.30

(including 15% margin)

Team Component DistributorPart Number

Unit Cost Quantity

Total Cost Purchased

Camera Camera Circuit City OLM SP510UZ $299.99 1 $299.99 YesMemory Card Circuit City OLM 1GBHXD $45.99 1 $45.99 YesProtection Plan Circuit City CSP CCA $79.99 1 $79.99 YesMirror $100.00 1 $100.00 No

Electronics Encoders Anderson Controls HS20-1024-71206 $305.00 2 $610.00 YesAccelerometers Analog Devices ADXL203 $12.00 4 $48.00 NoBuffer Circuit Linear Systems LS7184 $3.25 4 $13.00 NoOp Amps $1.00 6 $6.00 NoDual Op Amps Digi-Key LM1458NFS-ND $0.45 6 $2.70 No

Motors Motors Oriental Motors AXH015K-100 $324.00 2 $648.00 YesAngular Contact Bearings Kaydon KA042AR0 $390.00 2 $780.00 Yes4pt Contact Bearing Kaydon KA075XPo $433.00 1 $433.00 Yes

Power 6 channel slip rings MOOG Components $313.00 1 $313.00 Yes12 channel slip rings MOOG Components $493.00 1 $493.00 YesMiscellaneous $10.00 1 $10.00 NoExtra Camera Batteries $10.00 1 $10.00 No

Structures Shaft Couplers McMaster-Carr 3084K31 $23.38 2 $46.76 YesFlexible Shaft Coupling McMaster-Carr 9861T819 $24.48 1 $24.48 YesFlanges McMaster-Carr 44705K228 $10.76 2 $21.52 YesDowel Pins McMaster-Carr 98381A537 $12.06 1 $12.06 Yes5" OD, 4" ID, 1' Tube McMaster-Carr 9056K571 $70.83 1 $70.83 Yes0.25" Thick, 12"x2" Al McMaster-Carr 9246K13 $21.91 2 $43.82 Yes0.25" Thick, 18"x18" Al McMaster-Carr 89155K27 $78.19 2 $156.38 Yes1' Al Rectangular Tube metalsdepot.com T36414 $61.44 1 $61.44 No0.5" Tubing McMaster-Carr 8978K625 $16.00 1 $16.00 No**0.125" sheet $65.00 1 $65.00 No**1/16" sheets $60.00 1 $60.00 NoLbrackets McGuckins $10.00 1 $10.00 YesC-clamps McGuckins $2.50 4 $10.00 YesScrews/nuts McGuckins $15.00 1 $15.00 Yes

Other Fall Report Printing $215.99 1 $215.99 YesSpring Report Printing $300.00 1 $300.00 NoShipping for McMaster-Carr #1 $19.75 1 $19.75 YesShipping for metalsdepot.com $7.31 1 $7.31 No

Margin (15%) $753.29

$5,802.30

$4,000.00

$2,000.00

$197.70Remaining Funds

Total Expenses

FundsAerospace DepartmentEngineering Excellence Fund

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Current StatusCurrent Status

Parts ReceivedEncodersSlip RingsMotorsCameraSome aluminum

Parts OrderedBearings

Manufactured itemsBottom box structureTop plateMirror mount

Parts ReceivedEncodersSlip RingsMotorsCameraSome aluminum

Parts OrderedBearings

Manufactured itemsBottom box structureTop plateMirror mount

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Current Issues to be ResolvedCurrent Issues to be Resolved

Flange – shaft to plate connection

Part received is incorrect sizeHave found usable part from

McMaster-Carr

Flange – shaft to plate connection

Part received is incorrect sizeHave found usable part from

McMaster-Carr

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Questions?Questions?