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SOAREX VII Mission. Design, construct, test, and fly an ultralight (<1kg) atmospheric entry and descent microprobe carrying instrumentation to measure acceleration and atmospheric structure from 100 km to the surface. Flight Sequence. Design Specifications. Reentry Modeling. Design Solution.

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SOAREX VII Mission


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Presentation Transcript
soarex vii mission
SOAREX VII Mission

Design, construct, test, and fly an ultralight (<1kg) atmospheric entry and descent microprobe carrying instrumentation to measure acceleration and atmospheric structure from 100 km to the surface.

design solution
Design Solution

Mechanical Components

Electrical Components

  • Body Design
  • Nose Cone
  • Assembly
  • Microprocessor/PCB
  • Sensors
  • Transmitter
  • Power Supply
assembly
Assembly
  • End Caps secured with 4 screws each
  • Nose Cone secured with 4 screws to end cap
  • Antenna attached to BNC connector
  • Internal foam secures electrical components
    • Protection against vibration damage
mechanical testing and evaluation
Mechanical Testing and Evaluation
  • Float Test

Most Likely Failure Modes

  • Insufficient Buoyancy
  • Eye-hook Fracture
  • Pressure Seal Leakage
microprocessor and pcb
Microprocessor and PCB
  • Rabbit RCM4300
  • Programmed with C code
  • Data stored on Flash Card
  • Custom-made Printed Circuit Board created with EAGLE software
sensors
Sensors
  • Accelerometer
    • Up to 10 G’s
  • Pressure Transducer (x2)
    • Up to 15 psi
  • Thermocouple
    • Connect with Cold Junction compensator
power supply
Power Supply

Transmitter

  • 2 Li-SOCl2 Batteries
    • 3.3 Volts Each
  • Operational Life:
    • ~11 hours
  • Telonics MK8
    • Controlled Pulse
    • Frequency: 163 MHz
electrical testing and evaluation
Electrical Testing and Evaluation
  • Transmitter Test

Most Likely Failure Modes

  • Solder Point Weakness
  • Magnetic Switch
  • Batteries Run Out of Power