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NODDEX: Nitric Oxide and Dust Detector EXperiment Preliminary Design Review

NODDEX: Nitric Oxide and Dust Detector EXperiment Preliminary Design Review. Virginia Tech/Baylor University Presented by Stephen Noel December 7, 2011. PDR Presentation Content. Section 1: Mission Overview Mission Overview Organizational Chart Theory and Concepts Concept of Operations

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NODDEX: Nitric Oxide and Dust Detector EXperiment Preliminary Design Review

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  1. NODDEX: Nitric Oxide and Dust Detector EXperimentPreliminary Design Review Virginia Tech/Baylor University Presented by Stephen Noel December 7, 2011

  2. PDR Presentation Content • Section 1: Mission Overview • Mission Overview • Organizational Chart • Theory and Concepts • Concept of Operations • Expected Results • Section 2: System Overview • Subsystem Definitions • Critical Interfaces • System Level Block Diagram • System/Project Level Requirement Verification Plan • User Guide Compliance • Sharing Logistics with UW

  3. PDR Presentation Contents • Section 3: Subsystem Design • Data Logger Trade Study • NO Sensor • NO Block Diagram • PDD Risk Matrix/Mitigation • PDD • PDD Block Diagram • PDD Risk Matrix/Mitigation • IMU • IMU Block Diagram • IMU Risk Matrix/Mitigation

  4. PDR Presentation Contents • Section 4: Prototyping Plan • NO Prototyping (or reuse) • PDD Prototyping and Testing • Section 5: Project Management Plan • Schedule • Budget • Work Breakdown Structure

  5. Mission Overview Stephen Noel

  6. Mission Overview • Nitric Oxide (NO) sensor implementation • Measure concentration of NO as a function of altitude • Flight heritage in RockSat-C (NOIME) • Piezo Dust Detector (PDD) • Collect measurements of velocity and energy from incoming dust particles • Existing flight heritage on UT satellite

  7. Mission Overview • Utilize Nitric Oxide sensor for NO concentration data collection in high altitudes • IMU data to accompany NO data • Optimal senor orientation • Successful data transmission and storage • Mechanical and thermal securing for reentry • Successful implementation of Piezo Dust Detector and collection of space dust impact energy readings for Baylor University • Successful data transmission and storage • Mechanical and thermal securing for reentry

  8. Organizational Chart Graduate Advisor: Robbie Robertson Faculty Advisor: Dr. Troy Henderson

  9. Theory and Concepts • Utilizing NO sensor and IMU from NOIME (RockSat-C flight heritage) • NO sensor collects wavelength data around 220nm • NO sensor oriented at 45 degrees to catch light off of upper atmosphere • Stepped conical shape on the inside to allow only direct rays • IMU collects acceleration, angular rate, and magnetic field data

  10. Theory and Concepts • Piezo Dust Detector (PDD) • Little flight heritage • Stacked webs of charged wires which filter particles measuring dust velocity and energy

  11. NODDEX ConOps (for Terrier-Orion) Altitude t ≈ 4.0 min Altitude: 95 km NO data collection t ≈ TBD Altitude: TBD Skirt Released, NO data collection Apogee t ≈ 2.8 min Altitude: ≈115 km t ≈ 4.5 min Altitude: 75 km Reentry End of Orion Burn t ≈ 0.6 min Altitude: 52 km t ≈ 5.5 min Chute Deploys -NO, IME, and PDD sensors on -Begin data collection t = 0 min t ≈ 15 min Splash Down

  12. Expected Results • Utilizing NO sensor and IMU from NOIME (RockSat-C flight heritage) • NO sensor collects wavelength data around 220nm • Compare data to current atmospheric models • Still need expected PDD results data from Baylor University

  13. System Overview Stephen Noel

  14. Subsystem Overview Amplifiers IMU

  15. Critical Interfaces

  16. System Level Block Diagram Analog

  17. Requirement Verification

  18. RockSat-X 2011 User’s Guide Compliance • Rough Order of Magnitude mass estimates pending • Payload components are relatively small, no layout problems expects • No deployables needed • TM connector pin allocation: Wyoming/VT TM connector: 1 Analog (pin 10) 1 RS232 Data (pin 32) 1 RS232 Ground (pin 33) Colorado TM Connector: 1 RS232 Data (pin 32) 1 RS232 Ground (pin 33) • Using two timer event pins and one GSE • CG will be kept within +/- 1 inch of center of deck • The PDD uses 3W, need to allocate power appropriately

  19. Sharing Logistics • Payload area will be shared with UW • The AstroX team strives to test an electrically active heat shield prototype • Plan for collaboration • Team leads will stay in contact via email • SolidWorks models, mass budgets, power budgets, etc. are shared through a joint drop box account

  20. Subsystem Design Stephen Noel

  21. Trade Studies • Open access to spare Persistors, where as would need to purchase a third Logomatic • Logomatic requires little to no programming to initialize whereas Persistor requires working knowledge of C language • Equivalent length and width, but Persistor is approximately twice as thick as Logomatic *Most other hardware is legacy

  22. NO: Block Diagram Analog Amplifies with a gain of ~10 Amplifies very weak signal from NO sensor

  23. NO: Risk Matrix NO.RSK.1: Data Logger fails in-flight, Wallops telemetry data corrupted, no data received or recovered NO.RSK.2: NO pointing insufficient for data collection NO.RSK.3: NO probe does not survive heating of reentry NO.RSK.4: NO probe critically damaged by salt water exposure NO.RSK.5: NO post amplifier fails, no reliable data received NO.RSK.6: NO Femto amplifier fails, no reliable data received

  24. PDD: Block Diagram Needs 5V and up to 3W

  25. PDD: Risk Matrix PDD.RSK.1: Data Logger fails in-flight, Wallops telemetry data corrupted, no data received or recovered PDD.RSK.2: PDD does not provide reliable data, not calibrated correctly PDD.RSK.3: PDD does not survive heating of reentry PDD.RSK.4: PDD critically damaged by salt water exposure

  26. IMU: Block Diagram Use less reliable serial line Convert RS482 to RS232

  27. IMU: Risk Matrix IMU.RSK.1: Data Logger fails in-flight, Wallops telemetry data corrupted, no data received or recovered IMU.RSK.2: IMU does not provide reliable data, not calibrated correctly IMU.RSK.3: IMU does not survive heating of reentry IMU.RSK.4: IMU critically damaged by salt water exposure IMU.RSK.5: IMU transceiver fails, no data received

  28. Prototyping Plan Stephen Noel

  29. Prototyping Plan Risk/Concern Action Orientation of the sensor and the field of view required Verify the vertical distance to Wyoming’s plate so that it does not obstruct the field of view of the sensor. Place sensor as close to edge of plate as possible. NO sensor Concerns about testing and calibrating the PDD in the lab to determine the expected data Work with Baylor University and determine their method of calibration and expected results PDD The amplification is enough so that the outputs from Femto Amplifier is detectable Testing to make sure that the gain of the post amplifier is high enough Post Amplifier

  30. Project Management Plan Stephen Noel

  31. Schedule

  32. Budget

  33. WBS (Work Breakdown Structure) NO PDD IMU • Test last year’s IMU • Decide if we will design platform for IMU similar to other years • Implement • Obtain SolidWorks drawings from Baylor • Receive and test prototype • Implement • Finish obtaining design criteria from Dr. Bailey • Redesign if necessary • Test and implement

  34. Conclusion Questions?

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