1. Team Solkraft Conceptual Design Review
Fall 2010 Rev A
Team Solkraft Conceptual Design Review
Thomas Buck, Kyle Garner, Alexandra Jung, Quinn Mcgehan, Mark Sakaguchi, and Scott Taylor
9/16/2010

2. Mission Overview
To test the effectiveness of solar panels under near-space conditions of approximately 30 km.
We expect the functionality of solar panels to vary under different conditions of temperature and light intensity.
We want to see what is the most efficient way to use a solar cell.

3. Design
90 mm
220 mm
110 mm
128 mm

4. Design HOBO 3 9v Batteries Heater Batteries Camera Switch Memory Card
Photodiodes
Solar cells
Battery
Arduino 328

5. Management Normal meetings -Tuesday Nights -Sunday Afternoons Date
Tasks
9/20/10
All Hardware needed addressed
9/21/10
Hardware Order Form processed
10/1/10
Design complete
10/5/10
Revision A/B Due
10/09/10
Acquire all hardware and materials
10/11/10
Start building structure
10/17/10
Start preliminary tests on structure
10/25/10
Balloon Sat. Built
10/26/10
Final Critique
10/29/10
Simulation Test
All testing complete (whip test, cold test, etc.)
11/1/10
Troubleshooting complete
11/2/10
Revision C due
11/5/10
BalloonSat Weigh-in and Turn in
11/6/10
Launch Day
11/8/10
Post-launch Data Review Complete
11/30/10
Final Presentations
12/4/10
Revision D due
12/7/10
BalloonSat Hardware Turn In

6. Management Science and Thermal S. Taylor Team Leader Q. Mcgehan
Programmer
K. Garner
Electrical
T. Buck
Power
Structure Designer
A. Jung
Budget, ADCS, Planning
M. Sakaguchi

7. Budget Name Purpose Mass (g) Cost Where We get it Canon A5701S Camera
Take Pictures
220
Provided
HOBO Datalogger
Measure/record temperature and humidity 30
Solar Panels (6: 4 used, 2 extra)
Experiment
Each: ~6*
Total: ~24*
Each: $5.95
Total: $35.70
Edmund Scientific
scientificsonline.com
Photodiodes (6)
Measure light intensity 4g
Each: $.40
Total: $2.40
West Florida Components
Heater
Maintain internal temperature
100
9V Batteries (5+extra)
Provide Power
Each: 34
Total: 170
Each: ~ $3
Total: ~$20
Amazon.com
Arduino Duemilanove
Microcontroller
Record voltage readings from solar cells and light intensity readings from photodiodes 40
$29.95
Sparkfun electronics
9V to barrel jack adapter
Power Microcontroller
~10
$2.95
Sparkfun
Switches
Turn on/off electronics
Connecting Wires
Integrate electronics
Foamcore
Structure of satellite
Totals
$91
*We have not been able to find the exact weight of these solar panels, so therefore this weight is from a pair of similar panels. .

8. Biggest Worries Camera failure including camera fogging up
Hardware failure i.e. solar panels breaking
Programming
Lack of experience working with Java
Using Arduino Microcontroller