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RockSat-C 2011
CDR
Virginia Tech Virginia Tech RockSatRockSat
1
Robbie Robertson Chris Gates Younes Taleb
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RockSat-C 2011
CDR
NOIME (Nitric Oxide and Inertial Measurement Experiment)
2
• Optical nitric oxide (NO) probe for atmospheric science research • Data will be used to validate
and improve global modeling of NO concentrations
• Inertial Measurement Unit (IMU)• 3-axis accelerometers, gyros,
and magnetometers• CubeSat Computer System
• Air Force Research Labs plug-and-play computer
system
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RockSat-C 2011
CDR
Electronics
3
• Designed power supply and signal processing circuits
• 5 separate power supply lines from one battery pack
• Designing and manufacturing our own circuit boards
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RockSat-C 2011
CDR
Software
4
• Computer system includes:• 2 Atmel microcontrollers• 1 Gumstix single board
flight computer• Programming Atmel
microcontrollers to read analog and digital signals from our sensors
• Programming the flight computer to collect and store data from the microcontrollers
• Using programming tools provided by the Air Force
Interface Microcontroller
Interface Micorcotroller
Hub
Flight Computer
SensorAmplifier
IMU
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RockSat-C 2011
CDR
Mechanical Design
5
• Modeling and developing our mechanical design in Autodesk Inventor
• Using tools in the VT space lab and the department machine shop to manufacture components
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RockSat-C 2011
CDR
Team Overview
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Ryan Capps – Mechanical and ElectricalChris Gates – Software and Electrical
Robbie Robertson – Mechanical, Electrical, SoftwareYounes Taleb – Mechanical and Electrical
(2 Junior Aerospace Engineers, 2 Senior Aerospace Engineers, 1 Electrical and Computer Engineer)
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RockSat-C 2011
CDR
Lessons Learned
7
• Iterative design worked well for our small group… Brainstorm, develop, test, and repeat
• Read the #&$% data sheet. Neglecting to do this cost us time and money.
• Plan to be finished well before you need to be finished
• Don’t expect anything to work the first time
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RockSat-C 2011
CDR
8
QUESTIONS?QUESTIONS?