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Project YES! Critical Design Review. Team Search: Matt Paley, Emily Fuentes, Nick Stohl, Ian Andrzejczak, Jackie Myrose, Erik Horn 10/6/09. Mission Statement. Fly to 30 kilometers Collect data on amount of humidity in the air at various altitudes and temperatures
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Project YES!Critical Design Review Team Search: Matt Paley, Emily Fuentes, Nick Stohl, Ian Andrzejczak, Jackie Myrose, Erik Horn 10/6/09
Mission Statement • Fly to 30 kilometers • Collect data on amount of humidity in the air at various altitudes and temperatures • Hoping to find an altitude with low enough humidity to keep ozone from reacting with aluminum • Test the effectiveness of foam core to keep the BalloonSat at operational temperature without additional insulation • Design that could allow for more of mass budget to be allotted to science payload
Reasons for Change of Science Mission Ozone degrades after half an hour Not contaminating sample Ozone is extremely reactive: plastics & metals Aluminum - water vapor Titanium - weight, cost, manufacturability Small enough but powerful enough motor/chain
Parts • HS1101 Humidity Sensor (2) • Pressure Sensor (1 additional) • HOBO (Two temperature sensors) • AVR (Temperature and pressure sensors) • As of now nothing has been ordered, our goal is to have all parts ordered by Thursday • It should take approximately 5-7 business days for shipping, so the hardware should be delivered by October 16th
Design • Draw designs on foam core, cut out pieces (leaving paper in tact for folding, 45 degree edges) and cut out holes for wires, connections and camera hole • Attach sensors to foam core walls with hot glue, attach camera/HOBO/batteries with duct tape/velcro, and heater/AVR with screws • Routing and securing wires throughout box and to the holes we cut in foam core • Structural support made of foam core attached to inner and outer boxes • Close box by gluing sides together and sealing with aluminum tape
Testing Plan and Schedule • Making sure our materials will work for the purposes we are assigning to them. Ongoing • Testing the entire design of the BalloonSat itself (Whip test, drop test, stair test) 10-09-09: Whip, Drop, and Stair Testing • Making sure our weather sensors are operational 10-13-09 through 10-15-09: Sensor Testing
Testing Plan and Schedule Cont. • Testing the software and codes to ensure they run correctly Ongoing • Testing the subsystems (including heating and CCD camera, mass and power limitations) 10-22-09: Cold Test • Full scale mission simulation 10-20-09: Full System Simulation 10-24-09: Full System Simulation
Schedule Build Prototype for Testing 10-08-09 Whip, Drop, and Stair Testing Completed 10-09-09 Buy Any Extra Hardware Necessary 10-09-09 Build Main Structure of Box 10-10-09 Attach Sensors to AVR Board 10-12-09 Test Sensors 10-13-09 through 10-15-09 Complete Satellite Built 10-17-09 Full System Simulation 10-20-09 Cold Test 10-22-09 Second Full System Simulation 10-24-09 Pre-Launch Inspection 10-27-09 In-Class Mission Simulation Test 10-29-09 Troubleshooting 10-31-09 through 11-2-09 Design Document Rev C Due 11-03-09 Final Weigh-in and Turn In 11-06-09 Launch 11-07-09 Analyze Data 11-09-09 through 11-18-09 Design Document Rev D Due 12-01-09 Final Presentations Due 12-01-09 Design Expo 12-05-09 BalloonSat Hardware Turn In 12-08-09 We will also be meeting together weekly as an entire team, on Saturday mornings from 9 – 11 am, in order to check in with each other and make sure all aspects of the BalloonSat are still working together as they should be and/or trouble shoot and fix problems as they arise. Smaller groups will meet to work on specific tasks as needed throughout.
Expected Results • Data to create a weather satellite that can accurately measure temperature, pressure, and humidity during altitude changes. • There exists a correlation between humidity and altitude. • The unique design for heating of the satellite will work more efficiently than that of a normal box shape.
Biggest Worries • Data corruption • Structural stability • Reusability • Thermal problems