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Team Hang 7 Final Presentation

Team Hang 7 Final Presentation. Lucas Migliorini, Sierra Williams, Chase Goodman, Ethan Hollenbach, Becca Lidvall, Abby Caballero, Paul Smith, Nikhil Desai 12/11/12. Mission Overview. Objectives Create a Geiger counter to measure gamma radiation as altitude increases

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Team Hang 7 Final Presentation

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  1. Team Hang 7Final Presentation Lucas Migliorini, Sierra Williams, Chase Goodman, Ethan Hollenbach, Becca Lidvall, Abby Caballero, Paul Smith, Nikhil Desai 12/11/12

  2. Mission Overview • Objectives • Create a Geiger counter to measure gamma radiation as altitude increases • Compare our Geiger counter to an 'off the shelf' Geiger counter • Hypothesis • We can manufacture a working Geiger counter but not to the accuracy of a 'real' one • Radiation will increase as altitude increases due to a decrease in atmosphere

  3. Design Overview • Hexagonal Design • Centripetal Acceleration • Foam Core • Thermal Insulation • Geiger Tubes • One will be a homemade tube • One will be a kit-tube from Space Grant • Arduino • Will control all sensors and Camera, as well as record data

  4. Design Differences: From Start to Finish • Geiger Counters • 3 to 2 • All homemade to 1 Kit and 1 Homemade • Breakout Board • Attached to geiger

  5. External Diagram

  6. Internal Diagram

  7. Functional Block Diagram

  8. Results and Analysis Predicted: • Steady increase in radiation with altitude • Only looking at "control" due to mission change

  9. Results & Analysis (cont'd) Burst Losing Power Launch Results: • Increase with altitude, but levels off, even decreasing slightly • Decrease in power led to less detection of radiation (proven correct through ground mission simulations) • Loss of power to Geiger counter about 10 minutes after burst

  10. Results & Analysis (cont'd) Homemade Geiger Counters: • Working, but insensitive • Partially inconclusive data due to Arduino failure (7 minutes of data) • Trends show match of data between 40 to 60 minutes: much more insensitive tubes (8 uS v. 2 uS)

  11. Results & Analysis (cont'd) External Temperature: • Correct with predicted data • Gaps due to Arduino failures

  12. Results & Analysis (cont'd) BalloonSat Flight Recap: • Geiger counter Kit show increase, then slight decrease in radiation with altitude • Failures with Arduino caused lack of data • Small data recovered showed homemade Geiger counter function, but was more incentive, as expected

  13. Failure Analysis Failures: • Our Camera failed because of faulty programing • Our first arduino failed because of a corrupted SD card Indicators of Failures: • No pictures on the SD card of camera • Unreadable SD card on the arduino connected to the required sensors and homemade Geiger counter

  14. Failure Analysis (cont'd) Camera Failure • Reran with same SD (failed) • Ran with SD from team 4 (worked) • Rewrote SD files using working SD as a reference (fixed) Internal Sensor/ Homemade Geiger Counter Failure • Ran with new SD (worked) • No way to fix original SD • Some data recovered, but mainly inconclusive • Geiger Counter and sensors not able to run at the same time (proved after flight)

  15. Conclusions • Homemade Geiger counters are possible to make • Radiation increases as you increase in altitude • Our homemade Geiger counter was less sensitive than the kit Geiger counter • Our mission "somewhat" succeeded in recording data

  16. Ready to fly again BalloonSat Storage • Be fairly gentle • Keep it inside when not in use • Make sure all components are intact Reactivate BalloonSat for flight • Add new batteries and plug them in • Put in new SD cards • Make sure all systems are functioning • Possibly alter program to make it more efficient

  17. Lessons Learned • Plan a schedule to better spread out the work this semester • Team members should be more focused during team meetings • More testing of sensors, specifically Geiger counters • More background information of how this technology works, once again specifically on the Geiger counters

  18. Requirements

  19. Requirements (cont'd)

  20. Requirements (cont'd)

  21. Requirements (cont'd)

  22. Mass/Cost Summary Mass summary • Overall, this project had many successes and failures. We found out how to work as a team towards a common goal. We also learned that in the real world not everything will succeed. Failure is a part of engineering but what matters is how you respond to that failure. • Cost Summary • We spent a total of $155.24 of our $250 allowed budget.

  23. Message to next semester This semester of Gateway to Space may have been overwhelming, frustrating, and time consuming to say the least, but is by far one of the best classes you will ever have. Some advice to help you have an easier semester is to be sure to use your time efficiently and do not rush the testing process. The biggest factor of our failures was not testing over and over to ensure that all our subsystems worked properly. The easiest way to motivate you to work over 25 hours a week on this project is to get to know your teammates and have a good relationship with all of them. This will make it a lot easier and more fun. Make sure to make connections with friends and professors. Over anything be sure to have the best time you can have and never give up even if you do not succeed. Think about all that you will achieve with this project and that not many people have the same opportunities that you have. This is a once in a lifetime project so work harder than you ever have before because in the end it will all pay off.

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