TEAM SPIRIT OF THE KOALA
PROJECT VOLTFINAL PRESENTATION
Dustin Fishelman, Dylan Cooper, Joao Mansur, Anthony Anglin, Thomas Jefferies, Colin Harkins, Starteya Pais,
Andrew Trujillo 12/11/12
Mission Overview Mission Statement-
Determine the feasibility of atmospheric flow over the BalloonSat to create angular velocity. Which in turn runs our generator.
The BalloonSat will attain an altitude near 30km and collect environmental sensor data and pictures.
Design Overview Flight Tube will be attached to box with ball bearings,
allowing the box to spin Airflow across the surface of the box and the fins will spin
the box A magnet will be attached to the flight tube, allowing it to spin
within the box The magnet will spin within coils of wire, generating a current
in the wire
Design Overview A GO PRO camera will film the flight A Canon Camera will capture images during flight Temperature Sensors will record both internal
and external temperature during flight A humidity sensor will record humidity during
flight A pressure sensor will record pressure during
flight A 3Axis Accelerometer will measure acceleration
in the X, Y, and Z axis during flight
Design Overview
Heater
Coils of Wire
Magnet
GO PRO
Canon Camera
Arduino w/ Voltage and External Temperature Sensor
Arduino w/ Internal Temperature, Accelerometer, Pressure, and Humidity Sensors
Block DiagramGoPro Hero 2
Heater
Canon A780
Environmental Sensing Arduino
Current Sensing Arduino
Differences From Proposal to Final Proposal had two magnets and two coils
of wire Final only has one magnet and coil Location of Arduinos changed from both
in back to 1 in back and 1 in front Size of box increased from 15 to 17 cm
Ground Test to Flight Data
2980 226214 449615 672844 896182 1119538134282615661821789444201284722362522459627268312429062250
5
10
15
20
25
30
35
Cooler Test Data
Internal Temp (C)
External Temp (C)
Time (ms)
Placed in Cooler
Removed
Ground Test to Flight DataDry Ice Test 2
2696 194711 386856 579070 771387 963278 115617713486761541140173353219261252118618231111625035690
10
20
30
40
50
60
Humidity (%)
Humidity (%)
Time (ms)
Placed in Cooler
2035 168320 334718 501050 667317 833496 999953 11662651332698149902516655671831738199807521644570
1020304050
Humidity (%)
Humidity (%)
Time (ms)
FlightLaunch
Ground Test to Flight Data
Mission Sim Test
Flight
2035 163706 325482 487217 648721 810436 972022 113396912956221457491161914117809711942722210447102468
101214
Pressure (psi)
Pressure (psi)
Time (ms)
5122 374652 744525 1114562148453618544472224547259434829643293334150370438040742444444028481370511.8
11.85
11.9
11.95
12
12.05
12.1
Pressure (psi)
Pressure (psi)
Time (ms)
Launch
Ground Test To Flight Data
Mission Sim
Flight
2035
4358
485
126
1267
9216
8320
2098
5825
1523
2930
4433
4718
3762
9341
7878
4595
3750
1050
5426
8558
4183
6256
7466
7317
7088
4975
0359
7919
8883
3496
8751
3691
6654
9581
7599
9953
1041
511
1083
071
1124
729
1166
265
1207
931
1249
480
1291
012
1332
698
1374
272
1415
964
1457
491
1499
025
1540
694
1582
230
1623
751
1665
567
1707
112
1748
659
1790
197
1831
738
1873
528
1915
051
1956
558
1998
075
2039
613
2081
281
2122
935
2164
457
2206
003
-4-3-2-10123456
Acceleration
AccelX (g) AccelY (g) AccelZ (g)
Time (ms)
5122 395180 785690 1176272156664719572122347687273829531286533519193390980343001454690552-1
0
1
2
3
4
5
Acceleration (g)
AccelX (g) AccelY (g) AccelZ (g)
Time (ms)
Launch
Ground Test to Flight Data
millis (ms) 4996 9925 14868 19807 24742 29682 34621 39561 44500 49435 54374 59319 64250 69193 741330
50
100
150
200
250
300
350
400
450
500
Current (I)
Current (I)
Cur
rent
(I)
Ground Test To Flight DataMission Sim, Canon Camera
Flight, Canon Camera
Ground Test/Flight Generator During testing generator successfully
created a voltage across the coil.
During flight BalloonSat reached higher rotational velocity than during any ground testing.
Due to Arduino malfunctions no voltage data was recovered.
Failure Analysis Arduino kept resetting during flight Only 5 minutes of current data and 38
minutes of environmental Possible battery failure or battery
harness wiring. Heater Batteries were stuck to magnet
upon recovery.
Upon recovery of BalloonSat batteries were stuck to the magnet.
Heater Battery Location upon recovery.
Heater Battery Location at luanch.
Conclusion Angular velocity of the BalloonSat does
create voltage Fins on the box will increase the amount of
spin, determined by video. Voltage sensor only collected data prior to
flight when there was no rotation. Arduinos did not function properly and or
collect sufficient flight data. Video confirms inconsistent rotation,
unreliable power source.
Ready to Fly Again Store anywhere away from electronics Handle carefully Insert fresh batteries Insert GOPro or cover viewing port. Tape door closed Turn on switches and be notified by
LEDS
Lessons Learned Batteries on the bottom of the box far
from magnets BalloonSat should be longer length and
thinner width Flying two smaller magnets instead of
one large one Using bar magnets instead of field
RFP/Proposal/Requirement Compliance
RFP/Proposal/Requirement Compliance
RFP/Proposal/Requirement Compliance
Mass and Cost Summary
Hardware Weight (g) Quantity Subtotal
Bearings 9.07185 2 18.1437
Magnets 132.297 1 132.297
Voltage Sensor 1 1 1
Arduino 30 2 60
Arduino Shield 30 2 60
Copper Wire 34.8 1 34.8
Accelerometer 1 1 1
Pressure Sensor 1 1 1
Temperature
Sensor
1 2 2
GoPro 200 1 200
Camera 130 1 130
Humidity Sensor 1 1 1
Batteries 40 6 240
Heater 300 1 15
Structure 415 1 415
Total N/A N/A 1211
Hardware Cost Quantity S/H Subtotal
Bearings 14.95 2 6.11 36.01
Magnets 19.99 2 6.65 46.63
Voltage
Sensor
19.95 1 0 19.95
Velcro 22.23 1 0 22.23
Total N/A N/A N/A 124.82
Message to Next Semester Will spend more time on this class than any
other class during semester Will be the most fun you have ever had on a
project Work out when your team can meet and
have good communication between members
Overall, the main thing that we should have done differently was testing
JUST HAVE FUN!