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!