Individual Subsystem testing Report RockSat-C

1. Pegasis II Individual Subsystem testing ReportRockSat-C December 3, 2012 Mitchell Community College MCC Aerospace Engineering and Technology http://www.mitchellcc.edu/programs/rocket-projects/ RockSat-C 2013

2. PegasisII Mission Overview Presented By: Patrick Mencias-Lewis RockSat-C 2013

3. Mission Statement • Our goal is to power space-based instrumentation systems by passively generating energy from transducers of a proprietary design. Energy will be harvested from the rocket flight, solar rays, and other sources. This will be accomplished by building a more robust and simplistic payload using transducers with increased efficiency and improved design characteristics. RockSat-C 2013

4. Mission Objectives • The objective is to be able to supply enough energy for use (on the sensing Board) from initial time to final time. Whatever the sensing boards required voltage will be, the total voltage produced will have to meet this requirement and provide an average over the time interval. • The successful criterion has been derived to a more finite point; the success of the project will be to compare the data of the control sensing board to the experiment sensing board (from initial time to final time). Much emphasis was placed on making transducers more efficient to produce maximum energy. Current descope has changed to: Not to provide the maximum amount of energy possible; but to provide an energy efficient power source that is renewable thru rocket flight (for our sensing board). Thus making the current payload more about energy management, then producing maximum energy RockSat-C 2013

5. Expected Results & Uses CONTROL A sensing board will be powered by a fixed battery. It will record and save data of different environmental variables. EXPERIMENT A sensing board will be powered by energy gathering devices. The energy used from both sensing boards will be recorded and saved for comparison. Energy produced by transducers will also be recorded and saved. TRANSDUCERS Transducers are expected to produce from 2V to 15V peak. Currents will vary depending on transducer design and coil development. Results may lower cost and power requirements for space science by reducing the weight of electrical components. RockSat-C 2013

6. Entire system Block Diagram Electronics #1 Jerk Makrolon plate Graz/Coins Electronics #1 Aubade Magnetic pendulum Bristol Pendulum base Diving Board Support standoff Makrolon Plate RockSat-C 2013

7. Changes From CDR PossibleChanges: • EM Pendulum – Remove from Payload • Based on our findings we have seen that EM Pendulum is not productive enough to based on it use of space. • Diving Board – Add multiple axis in place of EM Pendulum • After our seeing our test results we have decided that based on an area to voltage ratio it is more logical to add multiple Diving Boards in place of EM Pendulum. • Jerk– Add multiple in place of EM Pendulum • Another possibility of replacement of EM Pendulum is adding multiple JERKS because of its high output. RockSat-C 2013

8. Project Management and Team Updates • New Members: Layton Hall & Wayne PruittMembers: Colin Robinson, Joseph Edwards, Tony Briceno, Patrick Mencas-Lewis Catherine Maynard, Sharon Rouse • Not Seen Members: Mason Young, Kevin Walf, Layton Hall, Nick Holt, Nathan Keller, Wayne Pruitt RockSat-C 2013

9. Schedule Updates • Currently we are on schedule and up to date with our testing and designing • Our Schedule has been shifted due to a new semester of classes our new meeting times are as follows: • Our main concern is complete communication between morning and afternoon meetings, however we have a few volunteers who attend both to over come this. RockSat-C 2013

10. PegasisII Subsystem Overview Mechanical Presented By: Colin Robinson Electrical Presented By: Tony Briceno Software Presented By: Tony Briceno RockSat-C 2013

11. PegasisII Mechanical Subsystem Overview Presented By: Colin Robinson RockSat-C 2013

12. Subsystem • Jerk • EM Pendulum • Bristol • Aubade • Diving Board RockSat-C 2013

13. Jerk RockSat-C 2013

14. Jerk RockSat-C 2013

15. Jerk Status: • Jerk has been tested in 2012 configuration • Jerk has been tested in standalone • Jerk has been tested in an experimental configuration RockSat-C 2013

16. Jerk – Test Data Jerk RockSat-C 2013

17. EM Pendulum RockSat-C 2013

18. EM Pendulum RockSat-C 2013

19. EM pendulum Status: • EM Pendulum has been tested in 2012 configuration • EM Pendulum has been tested in standalone RockSat-C 2013

20. EM pendulum – Test Data Coil 1 Coil 2 Coil 3 Coil 4 RockSat-C 2013

21. Bristol RockSat-C 2013

22. Bristol RockSat-C 2013

23. Bristol Status: • Bristol has been tested in 2012 Payload configuration • Bristol has been tested in standalone • Bristol has been outfitted for instantaneous spin test RockSat-C 2013

24. Bristol – Test Data Coil 1 Coil 2 RockSat-C 2013

25. Diving Board RockSat-C 2013

26. Diving Board RockSat-C 2013

27. Diving Board Status: • Diving Board has been tested in 2012 Payload configuration • Diving Board has been tested in standalone RockSat-C 2013

28. Diving Board – Test Data Diving Board RockSat-C 2013

29. PegasisII Electrical/Software Presented By: Tony Briceno RockSat-C 2013

30. electrical • Electrical Boards • Surface mount sensors for the sensing arrays have been researched • 3 single axis accelerometers will be replaced by 1 three axis accelerometer • 3 hall effect sensors will be reduced to one • Air pressure may be dropped • A/D inputs, ICSP, EUSART to Sdcard have all been tested • 48MHz oscillator needs to be tested • New components need to be ordered RockSat-C 2013

31. electrical • Processor setup RockSat-C 2013

32. electrical • Transducers • coil wire diameters have been tested • wrapping techniques have been tested • JERK was used as test rig for coil designs RockSat-C 2013

33. electrical • Spool construction RockSat-C 2013

34. electrical • Spool construction RockSat-C 2013

35. electrical • Spool construction RockSat-C 2013

36. electrical • Small dia. wire / uniform winding RockSat-C 2013

37. electrical • Large dia. wire / uniform winding RockSat-C 2013

38. electrical • Small diavs large dia RockSat-C 2013

39. Software • A/D conversion, ICSP, EUSART to SDcardhave all been coded • Settings for 48MHz oscillator need to be checked • USB still needs to be set up • A/D loop needs to be constructed RockSat-C 2013

40. Software void Initialize(void) { OSCCON = 0b01110000; SPBRG = 103; TRISA = 0b11111111; TRISB = 0x00; TRISC = 0b11000000; TRISD = 0x00; LATB = 0x00; LATD = 0xff; ANSELA = 0b00101111; //Sets PORTA to ANG ADCON1 = 0b00000000; ADCON2 = 0b00000111; //Left justified, manually agu time, intrclkconv BRGH = 1; SYNC = 0; SPEN = 1; TXEN = 1; } RockSat-C 2013

41. Software void Do_Outputs(void) { ADC_Read(); LATB = led_switch; LATD = ADRESH; printf("The pot is set at %d volts.\n", adValue); Delay_long(); } RockSat-C 2013

42. Software The pot is set at 0 volts. The pot is set at 0 volts. The pot is set at 8 volts. The pot is set at 28 volts. The pot is set at 49 volts. The pot is set at 70 volts. The pot is set at 94 volts. The pot is set at 119 volts. The pot is set at 143 volts. The pot is set at 166 volts. The pot is set at 184 volts. The pot is set at 192 volts. The pot is set at 192 volts. RockSat-C 2013

43. Plan for Subsystem Integration • To ensure successful integration all subsystems have been or will be fully tested in : • 2012 configuration for a sound control to base improvements upon • Experimental configuration based on research of improving the system • Finalized configuration after distilling all data to a logical conclusion • Plan to use Solidworks to determine precise location of every gram of mass for optimum performance and efficiency • Major hurdles would be : • Time constraints • Working with a much smaller team than we are accustomed RockSat-C 2013

44. Lessons learned • There is no such thing as too much testing or time • Communication is key • Use time management is essential • Don’t over think it RockSat-C 2013

45. PegasisII Conclusion Presented By: Patrick Mencias-Lewis RockSat-C 2013 45