1. NSF PACER Program Physics & Aerospace Catalyst Experiences Louisiana State University (LSU) A. M. Espinal Mena, V.González Nadal, J. Díaz Valerio Faculty Advisor: Dr. H. Vo Aerospace Balloon Imaging Testing with Accelerometer (ABITA) Experiments The Interamerican Geospace Research Experiments (TIGRE) Team Scientific Presentation 7/30/2008

2. Management Plan Team TIGRE member roles:  A. M. Espinal Mena: Electronics design and prototype.  J. Diaz Valerio: Mechanical design and fabrication.  V. Gonzalez Nadal: Software design and implementation. Team TIGRE webpage: www.pjarea.com/wiki

3. Mission Balloon Dynamics Reference: BEXUS 5 Experiment ( Altitude Sensing and Determination System )

4. Balloon Flight ACES-08

5. Balloon Flight ACES-11

6. Scientific Background Reference: Lyndon State College, Department of Meteorology Height

7. Scientific Requirement  Record the flight time of payload  Observe the surrounding environment of the balloon  Record outside & inside temperature  Obtain the vector acceleration of the balloon payload

8. Technical Requirements  Develop a payload weigh < 500 g.  Maximum capital cost of $ 500.  Collect data for 4 hours.  Required to have a RTC on board  Include a three axis accelerometer to record vibration/shock

9. System Design

10. Principal of Operation  Data gathered from:  Temperature sensor  Digital video camera  Accelerometer  Altitude – GPS How does the experiment correlate the data?

11. Electrical Design

13. Temperature Sensor and camera control

14. Diode Temperature Sensor

15. Calibration Diode Temperature Sensor Y = (-0.04579° C)X +38.68° C

16. Internal Temperature Sensor (HOBO)

17. ADXL330 Three Axis Accelerometer

19. Calibration – Accelerometer X Axis Y = (0.02282g)X – 2.860g

20. Calibration – Accelerometer Y Axis Y = (0.02291g)X – 2.955g

21. Calibration – Accelerometer Z Axis Y = (0.02282g)X – 2.860g

22. 32480 Digital Video Camera

23. Digital Video Camera Control System

24. Power Budget ComponentCurrent (mA) BalloonSat56 3 AD822 OpAmps & 1 LM33428 Three axis accelerometer (ADXL330) 3 Temperature Sensor5 Voltage-to-Frequency Converter 6 Digital Camera160

25. Mechanical Design

26. Payload Fabrication

28. Thermal Test

29. Thermal Test Results

30. Vacuum Test

31. Shock Testing

32. Weight Budget

33. Software Design

34. Software Requirements  Control Instruments  Time Stamp  Temperature Sensor  Accelerometer  Digital Camera  Calibrate Data  Analyze Data  Interpret Data

35. Data Format and Storage ByteDescription 1Time Stamp: hour 2Time Stamp: minute 3Time Stamp: second 4Temperature 5Accelerometer: X axis Max 6Accelerometer: X axis Min 7Accelerometer: X axis Average 8Accelerometer: Y axis Max 9Accelerometer: Y axis Min 10Accelerometer: Y axis Average 11Accelerometer: Z axis Max 12Accelerometer: Z axis Min 13Accelerometer: Z axis Average

36. Pre-flight

37. During flight

38. Post- Flight  Data acquisition from BalloonSat

39. Data Analysis Plan  Level 0: Raw Data - Data downloaded from BASIC Stamp and saved using Term 232  Level 1: Calibrated Data - Convert digital values into physical quantity  Level 2: Analysis -Data interpreted using Excel and Graphical Analysis -Frame grabber to analyze video image -Accelerometer’s frequency using Spectrogram

40. EEPROM Test: Power Outage (Min.)

41. Vacuum Test

42. Thermal Test (Hr:Min)

43. “Spinning” and Shock Test (Hr:Min)

44. Outside Temperature: Vacuum (Hr:Min)

45. Outside Temperature: Thermal

46. Payload Track Pre-Launch

48. Altitude VS Time

49. Ascending Rate

50. Altitude VS Temperature

51. Temperature VS Time: Inside

52. Temperature VS Time: Outside

53. Outside Temperature: Filtered

54. Accelerometer Average Values

55. Accelerometer Average Values (LPF)

56. Analysis: Average Acceleration

57. Spectogram Data Launch Cut-Down Landing

58. Video Analysis

59. Acceleration: Max Values

60. Max Values: Filtered

61. Acceleration: Min Values

62. Min Values: Filtered

63. ???, Texas

64. Predicted Location of Payload Recovery

65. Actual Location of Payload Recovery

66. Conclusions Successfully gathered data for the entire flight. Recorded the surrounding environment of the payload. Recorded vector acceleration of the payload. Discovered ways to improve further payload development.