Team Dionysus Critical Design Review Alijah Smith, Chris Koncilja, Elise Kowalski, Josh Tiras, Mike Beach, Becca Seigel 10/06/09

Organization Chart

Mission Overview –Objective: Use infrared sensor and an ultraviolet sensor to determine the flux of infrared and ultraviolet light throughout the troposphere and lower stratosphere –We expect to prove that UV and IR light intensity increase with altitude –Hypothesis: UV and IR light intensity increase with altitude –Understanding penetration of light can help protect people from radiation from the sun. Large amounts of radiation can damage people’s skin and have other negative effects on other life on earth.

Requirements Flow Down Level 0Survive Mission Primary Mission Secondary Mission Making it to Launch Level 1Testing Structure Purchase and test sensors Test camera, pressure, and temperature sensors Keeping schedule, budget, and mass budget

Design Use sensors attached to top of cube and convert the data received from amps to volts. Parts –Ultraviolet Sensor – ordered –Infrared Sensor – ordered Expected to arrive Oct. 6 th, 2009

Budget ItemAmountBudgeted CostActual CostSupplier Digital Camera1$0.00 CU 2GB Memory Card1$0.00 CU AVR Microcontroller1$0.00 CU Heater System1$0.00 CU HOBO1$0.00 CU Foam Core1$0.00 CU Switches2$0.00 CU Batteries (9V, AA)4$0.00 CU American Flag1$0.00 CU Flight String1$0.00 CU Test Batteries (9V)10$12.00N/ARadio Shack (special offer) Dry Ice 5lbs$5.00N/ASafeway Cooler1$0.00 Alijah Smith Black Light Bulb1$0.00 Becca Seigel Infrared Sensor1$30.00$19.00Boston Electronics Ultraviolet Sensor1$30.00$25.00Boston Electronics Shipping Cost$10.00$5.56Boston Electronics Spare IR Sensor1$30N/A Spare UV Sensor1$30.00N/A Test/Building Material (Foil, Tape, Flight tube)$10.00N/AWal-Mart Total30$157.00$49.56

Mass Bugdet ItemWeight (g)Dimensions Digital Camera22045x75x95 mm Batteries+AVR15020x80x110 mm HOBO3068x48x19 mm Heater System10010x50x50 mm Infrared Sensor20really small Ultraviolet Sensor20really small Total540

Schedule October 4th – Team Meeting: start construction if possible, Finish DD Rev A/B, CDR slides 5th – Team meeting: Finish CDR slides, practice presentation 6th – DD rev A/B due, CDR slides due 8th – Present CDR 11th – Team meeting: Construction 12th – Team meeting: Construction, empty shell/ mass simulator tests, start DD Rev C 13th – Team meeting: Construction, sensor tests, DD Rev C 18th – Team meeting: Construction, payload tests 19th – Team meeting: finish DD Rev C, start LRR slides 20th – Team meeting: construction, sensor and structure tests, LRR slides 25th – Team meeting: All Testing Complete 26th – Team meeting: Final touches, Rev C and/or LRR slides 27th – Pre Launch Inspection 29th – Mission Simulation November 1st – Team meeting: LRR slides, start team video 2nd – Team meeting: finish LRR slides, practice 3rd – DD Rev C due, LRR Slides due, present 6th – BalloonSat weigh-in by 2:00 pm 7th – LAUNCH!!! 9th – Team meeting: Work on data and/or team video 10th – Team meeting: Data, start final presentation/report 12th – bring raw flight data to class 15th – Team meeting: data, team video, start DD rev D 16th – Team meeting: final report/ presentation, DD rev D 17th – Team meeting: final report/presentation, DD rev D 22nd-28th – individual work on report and video, if needed, and DD Rev D 30th – Team meeting: finish final report/presentation, practice December 1st – Data Due Final Team Presentations and Report due, all data due, present, Team meeting: finish DD rev D 5th – Design Expo, DD rev D due, team video due

Test Plan Payload Testing: Whip, Drop, Cold, Stair Tests Sensor Testing: AVR test, Calibration, Blacklight, Heat lamp Schedule o11th – Team meeting: Construction o12th – Team meeting: Construction, empty shell/mass sim. test o13th – Team meeting: Construction, sensor tests o18th – Team meeting: Construction, payload tests o20th – Team meeting: construction, sensors and structure tests o25th – Team meeting: All Testing Complete o27th – Pre Launch Inspection o29th – Mission Simulation

Expected Results We expect to see an increase in radiation as altitude increases. UV: Watts per m^2 per nanometer IR Ground: Watts per m^2 per nanometer IR at altitude: Watts per m^2 per nanometer

Biggest Worries Sensor Accuracy/Error Severity of Impact Parachute Failing Finding proper resistor for amps to volts conversion