09.23.08
Ascend to an altitude between 25,000 – 30,000 meters to better
understand how sound behaves in near space conditions.
It is a known fact that sound cannot be heard in the vacuum of
space because sound waves require a transport medium.
We hypothesize that as our BalloonSat nears the silence of space,
sound amplitude will decrease as a function of altitude.
We theorize that a 261.33 Hertz middle C, played at a constant
decibel level on ground, will decrease in amplitude as altitude
increases and air pressure decreases.
Project SCREAM shall also produce photographic images of the
horizon of Earth using the digital camera provided.
•DIM: 30cm x 14cm x 14cm
•Sound Chamber
•Component Placement
Weight Budget
Component Weight (grams)
Foam Core 150.00
9 volt Battery (3) 101.40
12 volt Battery (1) 33.80
Canon A570IS Digital Camera w/ Memory Card 220.00
Timing Circuit 60.00
Hobo Temperature Data Logger 29.00
Hobo Atmospheric Pressure Data Logger 29.00
Switches (2) 20.00
Heater Circuit 60.00
Korg CA30 Chromatic Tuner 66.80
Sony ICDP620 Digital Voice Recorder 50.00
Insulation and Styrofoam Chamber 100.00
AAA Battery (4) 30.40
Total 950.40
Price Budget
Component Price
Foam Core (provided)
9 volt Battery (3) (provided)
12 volt Battery (1) (provided)
Canon A570IS Digital Camera w/ Memory Card (provided)
Timing Circuit (provided)
Hobo Temperature Data Logger (provided)
Hobo Atmospheric Pressure Data Logger (provided)
Switches (2) (provided)
Heater Circuit (provided)
Korg CA30 Chromatic Tuner $20.00
Sony ICDP620 Digital Voice Recorder $57.88
Insulation and Styrofoam Chamber $20.00
AAA Battery (4) $10.75
Total $108.63
•Impact:
•Stair Test
•Drop Test
•Whip Test
•Systems:
•Components Test
•Dry Ice Test
Awareness.
Communication Techniques
Safety Glasses
Gloves
Structural Test Safety (bystanders and team
members)
Vigilance Around Sharp Objects and Electric Currents
All necessary systems such as the HOBO will be on board
to take fundamental data readings.
The satellite will stay above zero degrees Celsius because
of the on board heater and insulation.
Primary experiment is separate from the on board camera
and HOBO data loggings.
Experiment will consist of a sound chamber, a sound
emitter, and a sound receiver.
Satellite will be structurally sound so that all the
experiments will be performed, logged, and retrieved.
Team SCREAM will be ready to leave with our satellite at 0500 on November 27.
Team SCREAM will arrive at Windsor, Colorado at 0730 ready to launch.
1.5 hours before the flight team SCREAM will do a systems and structures
inspection.
Team SCREAM will then secure the satellite to the balloon by running the rope
through the satellite.
A representative from Team SCREAM will hold the satellite in a line with the other
satellites and release it when appropriate.
Team SCREAM will then locate the satellite.
Once team SCREAM has found the satellite they will turn off the systems and
inspect it to see if there is any structural damage.
Team SCREAM will then secure the satellite in preparation to collect data.
Team SCREAM will eat a well-deserved lunch after a long day of launching and
chasing.
9 V Battery 9 V Battery 9 V Battery
12 V Battery
Switch
Switch
Heater HOBO Pressure Sensor
Timer
Recorder
External Temp
HOBO
Speaker
Recorder Power
Camera
Camera Power Source
Speaker Power
Joshua Yeaton: Team Leader/Microphone and
Speaker Configuration
Kevin Dinkel: Budget Organization/Structures
Dillon Thorse: Structures/Camera
Conrad Schmidt: Soldering/Electrical
Chris Kopacz: Structures/Camera
Chris Warren: Microphone/Speaker Configuration
As all members of the team are aerospace
engineering majors with little experience in
their respective areas, these designations are
somewhat flexible.
If anyone needs help with a specific assigned
part of the satellite, the rest of the team will
assist as needed.
Week 1, 9/15-9/21: All members work on proposal assignments. Presentation
construction on 9/21.
Week 2, 9/22-9/28: Proposal due 9/23. Team Presentations 9/23. Complete proposal.
Week 3, 9/29-10/5: HW 05 due 10/02. Complete design for DD Rev A next week. Order
hardware.
Week 4, 10/6-10/12: DD Rev A due 10/9. Start construction and begin testing. DD Rev
B for next week.
Week 5, 10/13-10/19: DD Rev B due/Presentations due 10/14. Work on prepping for
in-class demonstration of hardware. Final design prototyping.
Week 6, 10/20-10/26: Team in-class demonstrations 10/23. Complete building final
design.
Week 7, 10/27-11/2: Final Testing. Cold test must be completed. BalloonSat completed
on weekend.
Week 8, 11/3-11/9: In-class mission simulation 11/4 and 11/6 –
BALLOONSAT COMPLETED. LRR Cards due 11/6. DD Rev C due 8:00
AM 11/6. Launch Prep.
Week 9, 11/10-11/16: Final BalloonSat Weigh-in and TURN IN 2:00 PM
11/14. LAUNCH DAY 11/15. LRR Presentations 11/11. Launch prep
prior to launch.
Week 10, 11/17-11/23: Bring raw flight data 11/18. Process flight data.
Week 11, 11/24-11/30: Fall Break. Work on final presentation and DD
Rev D.
Week 12, 12/1-12/7: DD Rev D Due 12/2. ALL presentations due 12/2.
HW 06 Due.
Having an audible/recordable sound
Lots of electronics, one heater enough?
Satellite weight, lots of bulky items
Testing, components are tightly packed, no
room for movement/error
Recording Altitude?