Transcript Team Magnaritaville Final Presentation

Team Magnaritaville
Final Presentation
Zachary Cuseo, Andrew Fruge’, Tyler
Knappe, Christopher Nie, Sydni Smith,
and Shweta Maurya
December 1, 2009
Mission Overview
• The twofold purpose of this BalloonSat
mission will be to show that the Earth's
magnetic field varies and to show that
magnetometers can be used to determine the
attitude of a BalloonSat.
Mission Overview Continued
• Hypothesis
– Fluctuation in the Earth’s magnetic field
– Finding a vector which will facilitate in determining in
which direction the camera is pointed
• Satellite attitude
• To better understand the magnetic field
Mission Specific Components
- 1 AVR Microcontroller
- 2 Magnetometers
- 2 Analog Proto Board
Connectors
- 5 9V Batteries
- 1 Canon Camera
- 1 Heater
- 1 HOBO
Functional Block Diagram
Functionality
Switch
Heater
Batteries
AVR
HOBO
External
Temperature
Probe
Magnetometers
Accelerometer
Camera
Internal Temperature Probe
Pressure Sensors
Design Differences
Proposed
• Staggering the Heater, Batteries
and AVR for balance.
•
• The two magnetometers will
extend from opposite sides of
the Satellite.
• There will be a photo of a
cheeseburger to truly be
C.A.T.E.O.S.
• Utilizing a Faraday Cage
•
•
•
Actual
The Heater and Batteries were
placed in a corner to maximize
heating efficiency, while the
AVR was attached to a wall.
The two magnetometers
extended from adjacent sides
for more accurate readings
No photo of a cheeseburger
was used.
No Faraday Cage was
necessary.
Results and Analysis
Strength (nT)
Mag X
Time
Strength (nT)
Mag Y
Time
Results and Analysis
Accel X
Accel Y
Internal Temp (°C)
Pressure (psi)
Results and Analysis
• Vertical
Strength (nT)
Mag Y
Voltage
Time
Time
Results and Analysis
• Vertical field trends –
– Overall decrease of 4,219 nT
– Expected change due to altitude of 1,694 nT
– Rolling into x-direction would explain this extra
variation
Results and Analysis
• Magnetometer Data
X-Magnetometer Variation
Results and Analysis
• Picture 771 – 8:08 a.m.
• Data point (28,039, 1.94339)  East
Results and Analysis
• Picture 705 – 7:45 a.m.
• Data point (21,379, 2.2266)  North
Lessons Learned
• Orient vertical magnetometer pointing down
• Add a third magnetometer in the horizontal
plane for definitive attitude determination
• Prototype structure
– Keep it simple
– Test different designs for an efficient use of space
Ready to Fly
• Store payload in standard conditions upright
to protect magnetometers
• Perform launch checklist
Failure Analysis
• No in-flight failures
• On functional test, y magnetometer was
discovered to be inoperative
– Thought to be connection problem
– Found faulty connection to the proto board
– Soldered and verified to be working
• Magnetometer Structural Failure
– End cap lost during transport to launch site
– Wax paper taped onto end at launch site
Conclusion
• Discovered a change in the vertical
component of the magnetic field with respect
to altitude
• Confirmed a spin in the satellite, as seen
through the sinusoidal data
• Discovered attitude determination is possible
with the use of a horizontal magnetometer
RFP Compliance
Science
Requirement
Compliance
Measuring Earth’s magnetic field with respect to altitude changes
Analog sensor inputs cannot exceed 5v
Provided sensors and magnetometers use 5V DC
Ready to fly again after flight
Structure will be tested thoroughly in order to ensure the ability to fly
again after flight
A paper clip will be used to secure the tube, as well as hot glue if
needed
A heater system will maintain the temperature of the internal
structure
Mass of payload has been budgeted and is within the requirements
Secure, non-metal flight string tube
Internal temperature must remain above -10 degrees Celsius
Total weight cannot exceed 850g
Acquire ascent and descent rates of flight
The design will be constructed to withstand the changes in pressure
and high speeds during ascent and descent
Design shall allow for a 30g HOBO
Provided, set-up, and accounted for in mass and design
External Temperature Cable
AVR Microcontroller Board and Batteries – 150g
Provided
Provided, set-up, and accounted for in mass and design
Heater - 100g
Provided, set-up, and accounted for in mass and design
Canon Digital Camera - 220g
Provided, to be set-up, and accounted for in mass and design
Foam Core
Provided and is being used for the external structure
Allowance for spare parts on budget and parts list
Some money has been allotted within the budget for spare parts
U.S. Flag and Contact info on outside
Provided and will be attached on external structure
Keep documents and design in metric
Design and documents are consistently kept in metric units
Launch on November 7, 2009
The team has created a schedule which accommodates for launch
date on 11/7
Team shall use goggles, gloves, and other safety gear when necessary
No one shall get hurt
Return hardware to program in working order
Hardware will be securely placed inside the structure to ensure that
it returns in working order
All parts paid by Chris Koehler and receipts provided
Order forms are completed, orders have been made, receipts have
been sent
Additional receipts will be sent when purchases are made
Turn in receipts within 60 days
Have fun and be creative
Team Magnaritaville is having fun and being creative with its satellite,
Cheeseburger at the Edge of Space
No living things on payload
No living things are being used in the experiment, or in the payload
Complete final report with bonus video
The team plans to make a video and complete report on time
Mass Budget
Budgets
Component
Monetary Budget
Component
Magnetic Field
Sensor
Analog Proto
Board Connector
Shipping
Flight Batteries
Foam Core
Temperature
Cable
AVR
Microcontroller
Board
Switches
Heater
Aluminum Tape
Adhesive (Hot
Glue Sticks)
Additional
Materials
Total Cost
Purchase Location
Vernier Software
and Technology
Vernier Software
and Technology
Vernier Software
and Technology
Provided
Provided
Provided
Quantity
Unit Cost
2
$58.00
2
$10.00
2
4
3
$15.64
Provided
Provided
1
Provided
Provided
Provided
Provided
Provided
1
2
1
1
Provided
Provided
Provided
Provided
Provided
10
Provided
Local Stores
Magnetic Field
Sensor*
Analog Proto Board
Connector*
Camera with
Batteries*
HOBO
AVR Microcontroller
Board, Heater,
Power Connectors,
and Switches*
9V Batteries*
Washers*
Paper Clips*
American Flag
Purchase
Location
Vernier
Software and
Technology
Vernier
Software and
Technology
Ite
m Qu
Co ant
de ity
M
GBT
A
2
BT
AEL
V
2
Single
Item
Mass
(grams)
Sum
(gra
ms)
69.2
138.4
5.6
11.2
Provided
Provided
1
1
228.5
30
228.5
30
Provided
Provided
Provided
Provided
Provided
1
4
2
2
1
15
63
cm
117.1
46.7
14.9
1.2
1
117.1
186.8
29.8
2.4
1
Foam Core Structure
Provided
2
98.6
Tape, Glue, etc.
Total
*all weights
measured for our
actual components
Provided
98.6
as
ne 6.2
ed (remainin
ed g weight)
~ $16.36
$183.64
6.2
850
Message to Next Semester
• Keep the experiment simple, but make sure everyone
is interested in it.
• Find a way to sufficiently secure the camera and to
cover/insulate it.
• Establish a consistent time to meet on a weekly basis.
Do this as early as possible.
• Utilize your resources (Space grant, your professors,
etc.)
• Start video taping early
• Prepare for this project to be a major time
commitment
– Dedicate at least one all-nighter to the satellite