the random guys
DESCRIPTION
The Random Guys. Flight Readiness Review. Philip Hansen Ryan Lemerond Jens Heig Ayo Akindumila Olani Aga. AEM 1905November 20, 2008. Mission Overview. - PowerPoint PPT PresentationTRANSCRIPT
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THE RANDOM GUYS
Philip Hansen Ryan Lemerond
Jens HeigAyo Akindumila
Olani Aga
AEM 1905November 20, 2008
FLIGHT READINESS REVIEW
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Mission Overview Our main objective for this mission is the
Geiger counter experiment. We want to know how radiation exposure changes as you travel through the atmosphere.
We expect that the there will be more radiation as altitude increases.
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Mission Overview The video camera is our team’s
secondary experiment. We want to see how the atmosphere layers affect the color of the sky.
We expect that has the balloon progresses through layers it will get darker.
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Team Organization
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Design Flight computer Geiger counter Heater DXG DXG-569V 5MPixel HD video camera with
SD memory card Weather station Hobo temperature probe and hobo data logger Battery packs for camera, flight computer, and
heater 6’6’6 inch payload box Switch plate
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Flight system interaction design
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Inside the Payload
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Outside of Box
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Launch conceptual design
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Mass and CostItem Mass(kg) Cost($)CanonPowershot .223 166Basic Stamp1 .063 56Batter Pack for Stamp1 .11 56x6x6 box of foam .18 7Geiger Counter .114 150Basic Stamp2 .123 70Heater Circuitw/Switch .027 5Hobo data logger .027 105Batter Pack for heater .150 6Total 1.1 570
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Pre-Flight Testing Flight Computers Heater Pressure Sensor Switch Payload Box
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Thermal Test Blue=Temp Inside Purple= Temp. Outside
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Materials1500 grams latex (rubber) weather balloon. 10 feet in diameter can lift 20 pounds
2 Helium tanks to fill
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Launch Video
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End of LaunchFlight lasted for 106 minutes.We arrived 5 minutes within touchdown.
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Expected Scientific Results Geiger Counter- We expect the radiation
to increase with altitude. Temperature Sensor- We expect the
temperature to drop extremely low, but then start to warm up.
Pressure Sensor- We expect the pressure to steadily drop with altitude.
Video Camera-We expect the sky to change from blue to black.
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Temperature Vs. Altitude
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Pressure Vs. Altitude
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Radiation Vs. Altitude
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0.00 20.00 40.00 60.00 80.00 100.00 120.00 140.00 160.00 180.000
10000
20000
30000
40000
50000
60000
70000
80000
90000
100000
GopherLaunch 12: Altitude vs Time
Series1
Time (minutes)
Altit
ude
(fee
t)
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HOBO DATA GRAPHS
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0 2000 4000 6000 8000 10000 12000 14000
-70
-60
-50
-40
-30
-20
-10
0
10
20
30
Hobo Temperature vs Time
int tempExt temp
time in seconds
Tem
pera
ture
in d
egre
es C
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0 2000 4000 6000 8000 10000 12000 140000
10
20
30
40
50
60
70
80
90
100
Hobo
RH (%) (1,2)
Time in seconds
Rela
tive
hum
idit
y
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BASIC STAMP 1 FLIGHT COMPUTER GRAPHS
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0 20 40 60 80 100 120 140
-60
-50
-40
-30
-20
-10
0
10
Temperature vs. Time
Series1
Time in minutes
Tem
pera
ture
in
degr
ees
Cels
ius
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0 20 40 60 80 100 120 1400
2
4
6
8
10
12
14
16
Pressure vs. Time
Series1
Time in minutes
Pres
sure
in p
si
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GEIGER COUNTER
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0 20 40 60 80 100 120 140 160 1800
50
100
150
200
250
Radiation vs Time
Series1
Time in seconds
Radi
atio
n Co
unt
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0 20 40 60 80 100 120 140 160 1800
50
100
150
200
250
Radiation vs Time
Series1
Time in seconds
Radi
atio
n Co
unt
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Photo Experiment Utilizing Adobe
Photoshop we measured the picture starting at zero and measuring the width every ¼ unit of measurement
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Photo ResultUnit thickness0 2 ¼¼ 1 ½2/4 2 1/8¾ 21 2 1/81- ¼ 2 ¼1- ½ 2 ½1- ¾ 2 ½2 2 ½2- ¼ 2 ¼2-1/2 2
2- ¾ 1 ½3 1 5/83- ¼ 1 ¼3- ½ 1 1/83- ¾ 14 ¾4- ¼ 5/84- ½ ¾4- 3/4 3/85 3/85 ¼ ¼5 ½ ¼5 ¾ ¼
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Conclusion From our pressure sensor we learned that
the pressure decrease exponentially with an increase in altitude.
Our temperature sensor showed that the temperature drops steadily for awhile, but then actually starts to increase again.
Our geiger counter experiment really didn’t work because the levels were so high that it maxed out the computer.
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Conclusion Our camera experiment didn’t work
because for some reason it didn’t record anything.
If we were to change our payload and fly it again we would like to change how long the computer counted radiation hits so we could actually see how the radiation increases.
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Words of Wisdom Organize your team as soon as possible
Make sure that you don’t get behind
Don’t procrastinate
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Thanks We’d like to thank the Professor for
helping us put this together and also giving us the chance to do something like this.
We’d also like to thank John who helped us with the geiger counter.