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MicroMeteoroid and Orbital Debris Detection

Client Alan Cassell at NASA AMES Faculty Advisor Jay McCormack Mentor Greg Swanson Team Members Matt Arnone, Nick Harris, Matt Hinkelman , Jay Hirata, Matt Mihelish , Alex Swanson. MicroMeteoroid and Orbital Debris Detection. Project Description.

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MicroMeteoroid and Orbital Debris Detection

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  1. Client Alan Cassell at NASA AMES Faculty Advisor Jay McCormack Mentor Greg Swanson Team Members Matt Arnone, Nick Harris, Matt Hinkelman, Jay Hirata, Matt Mihelish, Alex Swanson MicroMeteoroid and Orbital Debris Detection

  2. Project Description • Electronic Hit Indicator (EHI) testing • Micro Meteoroid and Orbital Debris (MMOD) impact testing • Test fixture • High speed data acquisition • Graphical User Interface (GUI) • Finite Element Analysis (FEA) simulation Photo from NASA.gov Broken Space Shuttle Endeavor tile Photo from NASA.gov Columbia 2003 Orion Space Capsule

  3. EHI Sensor Current takes the path of least resistance

  4. Potential Integration Points - Forebody TPS - Backshell TPS - Service Module Extension

  5. Specifications and Deliverables • Test Fixture • Hold and EHI at a specified distance from the material being tested • Support for testing different configurations of thermal protection systems and EHI’s • Easily and quickly mount to the 17 caliber gun at the White Sands Test Facility • Hardware • High speed (> 1MHz) • 128 trace sensor size • Plug and play • Software • Display impact data in a meaningful way • Save data for future analysis

  6. Test Fixture Design

  7. Test Fixture Design Cont. Service Module Extension Steel Support Rods Aluminum Clamping Plates Electronic Hit Indicators (EHI) Steel Back Plate Sheet Metal Backing Thermal Protection System (TPS) Aluminum Collars

  8. Service Module Extension

  9. Finite Element Analysis: Impact Simulation

  10. Test Layout To achieve the velocity necessary to simulate an MMOD impact, a 17 caliber 2-stage light gas gun is used. With this gun, the projectile is capable of reaching a velocity of 7 km/s using a 3.4 mm projectile.

  11. Data Acquisition System

  12. Design Choices • Processing • FPGA • Microcontroller • GUI • Web Based • Windows/Linux • Data Storage • On-Board • Streaming • Data Transfer • USB • RS-232 • Ethernet

  13. Design Process

  14. Simulation

  15. The Board

  16. Software

  17. Final Product

  18. Results

  19. Results Cont.

  20. Results Cont.

  21. Lessons Learned • Carbon fiber process • PCB layout can be difficult • The EHI sensor is a promising and viable technology

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