Transcript PDR Presentation - Louisiana Space Consortium

PDR Presentation
Team JHK
Experiment TIC
February 27, 2003
Science Objective
Our goal is to learn if IR radiation is
dependent on temperature or altitude in the
upper atmosphere. We are also going to
study temperature as a function of altitude
during ascent.
Payload Design
The payload consist of a HOBO which will
have an IR sensor and temperature probe
attached. A small digital camera will be
included separate from the HOBO.
Fabrication and Testing
• First, the I-V converter & amplifier will need to be
designed and constructed. Next, the temperature
probe will be directly connected to the hobo, while
the IR sensor and hobo will be connected using
the IV converter & amplifier. That will complete
the fabrication of the hobo system. The camera
will be only need to be programmed to sample at
the determined rate, before the camera system is
ready for testing. The whole and individual pieces
will each be tested in detail to make sure it
operates properly using the methods stated in the
construction plan
Fabrication Test List
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Circuitry
Design the IV converter & amplifier
Construction the IV converter & amplifier
Programming
o Program the specific rate of sample for the camera and the hobo
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Testing
o Test the hobo system to ensure the batteries do not fail, that the IR and temperature
sensor works properly, that the rate of sample is accurate, and that the memory is sufficient for the
flight.
o Test the camera system to ensure the batteries do not fail, the camera operates at the correct rate
of sample, and that the memory is sufficient for the flight.
o Test the system as a whole to ensure it is properly insulated and protected from any possible
damage or temperature change during the flight.
Mission Operations
The payload will be launched and tracked
from the ground. Upon recovery the
EEPROM will be downloaded and the data
converted to temperatures and light
intensities to determine if a correlation
exists between the two.
Weight Budget
Item
Weight
HOBO + Battery
Temperature Probe
IR Sensor
Camera + Battery
I-V Converter/Amplifier
50g
10g
10g
42g
50g
Total Weight
162g
Leftover weight for box and insulation
838g
Data Analysis
Temperature and IR light intensity will be
measured every ten seconds during the
flight. All data will be stored on board and
recovered with the payload. Software needs
to be developed to convert voltages from
the sensors to temperature and IR light
intensity.
Power Budget
HOBO1s/10s x 20mA(max current) x 2 sensors = 4mA, 4mA x
6 hours = 24 mA/ hr
Will require a 5V battery > 25mA/hr
Camera1s/180s x 25mA = .138mA, .138mA x 6 hours =
.833mA/hr
Will require a AAA battery > 1mA/hr
Op Amp1s/10s x 20mA(max current) = 2mA, 2mA x 6 hours = 12
mA/ hr
Will require a 5V battery > 13mA/ hr
All of batteries will be lithium batteries ordered from Energizer
Master Budget
Items to be Purchased
Cost
Infrared Sensor
Digital Camera
HOBO
Batteries
OpAmp
Estimated
Total Estimated Cost
$400
$200
$40
$120
$20
$20
WBS
See Handouts
Credits
1.
Online Source: National Institute of Water and Atmospheric Research (NIWA), February 16, 2003,
http://www.niwa.co.nz/edu/students/faq/layers
2. Online Source: Online Journey through Astronomy, February 16, 2003,
http://csep10/phys/utk/edu/astr161/lect/earth/atmosphere.html
3. Online Source: NASA Website, February 16, 2003,
http://liftoff.msfc.nasa.gov/academy/space/atmosphere/html
4. Online Source: Earth Zone Website: Absorption, Radiation, & Greenhouse, February 23, 2003,
http://207.10.97.102/earthzone/lessons/07meteor/greenhouse.html
5. Online Source: University of Chicago, February 23, 2003,
http://geosci.uchicago.edu/~archer/EnvChem/Labs/modtran.lite.html
6. Online Source: Caltech University, February 23, 2003,
http://www.ipac.caltech.edu/Outreach/Edu/infrared.html
7. Online Source: Seiko Instruments, February 23, 2003, http://www.sih.com.hk.html
8. Catalog Source: Edmund Industrial Optics, Optics and Optical Instruments Catalog, 2002, p. 191
Online Source: US Sensor Corporation, February 23, 2003,
http://www.ussensor.com/products/precintr.html