Echo Critical Design Review Andrew Berg, Shawn Carroll, Cody Humbargar, Jade Nelson, Jared Russell,...
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Transcript of Echo Critical Design Review Andrew Berg, Shawn Carroll, Cody Humbargar, Jade Nelson, Jared Russell,...
Echo Critical Design Review
Andrew Berg, Shawn Carroll, Cody Humbargar, Jade Nelson, Jared Russell, Austin Williamson
10-17-06
Mission Overview
Main Science Mission-
• Test the effect of air pressure on sound waves.
• Using the sounding device for a comparison to secondary science mission as a flight recorder.
Secondary Science Mission-
• HOBO data logger used to measure internal and external temperature during flight
• HOBO also used to test humidity levels inside balloon-satellite.
• Temperature readings from HOBO data logger will act as a black box during mission.
Non-Science Mission-
• Using main imaging hardware to take photographs during flight.
• Secondary imaging hardware will using ultraviolet / infrared filters to take photographs.
• Photographs from main and secondary imaging hardware will be used for comparison.
Objective: Using Echo ’s science systems to show a direct correlation between the amplitude of a sound wave to the pressure of the air it passes through.
Design
• Balloon satellite measuring 10 by 12cm.
• Optics will require cameras to be mounted facing in the same direction.
• Main science system will be isolated via a tube suspended by tension springs to prevent vibration and shock.
• Secondary science system and other systems will be tightly arranged to minimize contact with vacuum at 100,000ft, optimal use of heating system, and to minimize wiring needed.
• Atmospheric control system consists of a tube system that moderates airflow and removes humidity by venting atmosphere into space.
DesignHeater Power
Switch
Heater 1
(To Heater 3)
(To Heater 2)
Timer Power
Timer
Switch
Camera 1 Camera 2Camera 1
PowerCamera 2
Power
Microphone power
Microphone/Preamp
Rectifier/filter
Switch
Op-Amp
HOBO
External Temperature
Internal Temperature
Relative Humidity
HOBO Power
Sounding Device
Sounding Device Power
Switch
DesignHardware-
Name Description Part Number Supplier
Cockroach Banisher
A simple oscillator with piezo driver FK929 Qkits
Condenser Microphone
Condenser Microphone with Preamp FK648 Qkits
Amplifier Audio Signal amplifier Qkits
Rectifier Converts Audio Signal to DC Voltage N/A ITLL
Switches For controlling power-on of all systems N/A ITLL
Various Electronic Hook up wire, capacitors, diodes N/A ITLL Aluminum Tape Sealant N/A CoSGC Sounding Structure Small Tube Structure N/A McGuckins Foam Core Lightweight Structural Material N/A CoSGC Insulation Closed-Cell Foam N/A CoSGC
Space blanket Additional Insulation, ESD Shielding N/A Target
Polyethylene Tubing 4.5mm ID for Flight Tube N/A McGuckins Compression Fittings 1/4" for Flight Tube N/A McGuckins
Washers Prevents Flight tube Tear Through N/A McGuckins
Batteries 9v Lithium TBD Heater Components Power Resistors, and cabling N/A CoSGC Timing Circuit Initiates Exposure of cameras N/A CoSGC Camera 1 APS Camera N/A CoSGC Camera 2 35 mm Camera, Pentax PC-550 Shawn Carroll
IR Filter (pass) Photography Filter, passes IR spectrum Western Camera
HOBO Data Logger CoSGC Film 35mm(IR) and APS Western Camera Dessicant Condensation Control N/A Circuit City
Design
•Two Cameras 55x87x35 mm
•Timing Circuit 40x58x22 mm
•Sounding Equipment 50x30x15 mm
•Heater 38x44x22mm
•Box 10x10x12cm
Management
• Project Schedule
• Personnel and Division of Labor
System/Project Task Team
Member Projected
Completion Due Science Decide on Experiment All 9/19/2006 Complete Power System Overview 9/19/2006 Complete
Structure 3d Models (Preliminary) Berg 9/19/2006 Complete Optics Filter Choice/System Overview Jade 9/19/2006 Complete Main CoDR Austin 9/20/2006 Complete Main Proposal Cody 9/20/2006 Complete
ATP/Feedback CoSGC 9/28/2006 Complete
Main Complete System Designs Rev A All 9/29/2006 Complete
Main Finalize BOM All 9/29/2006 Complete Main Finalize Mass and $$ Budget Cody 9/29/2006 Complete
Science Complete System Designs Rev A
Shawn + Jared 9/29/2006 Complete
C&DH Complete System Designs Rev A Cody? 9/29/2006 Complete
Power Obtain Power Requirements Jared 9/29/2006 Complete
Structure 3d Models (Add mass + density) Berg 9/29/2006 Complete
Power Complete System Designs Rev A Jared 9/30/2006 Complete
Structure Complete System Designs Rev A
Berg and Austin 9/30/2006 Complete
Optics Complete System Designs Rev A Jade 9/30/2006 Complete
Structure Fabricate Test Structure Austin 10/6/2006 Complete Main Design Document Rev A All 10/8/2006 Complete
Main CDR + Design Document Rev B All 10/15/2006 Complete
Main Test: Bench (Individual Systems) By System 10/19/2006
Testing HOBO Jared 10/19/2006 Testing Science, with Data logging Berg 10/19/2006
Testing Structural (Drag, Whip, Shock…) Austin 10/19/2006
Testing Optics with Timing and IR Jade 10/19/2006
Science Complete Individual Systems Shawn + Jared 10/19/2006
C&DH Complete Individual Systems All? 10/19/2006 Power Complete Individual Systems Jared et al 10/19/2006 Optics Complete Individual Systems Jade/Cody 10/19/2006
Structure Fabricate Test Structure (Revised) Austin 10/20/2006
Main Integrate Systems All 10/20/2006
Main Test: Bench (All together now!) All 10/21/2006
Main Integration into Structure Berg and Austin 10/21/2006
Testing Drop All 10/22/2006 Testing Whip All 10/22/2006 Main Test: Op-Shock All 10/23/2006
Testing Cold All 10/24/2006
Structure Fabricate Final Structure Austin 10/25/2006 Testing Mission Testing All 10/27/2006 Main Test: Op-Cold All 10/29/2006 Main Design Document Rev C All 11/7/2006 11/9/2006 Main LRR All 11/7/2006 11/9/2006 Main Turn In All 11/7/2006 11/10/2006
Hardware Aquire all hardware All ASAP- 9/30/2006
Budget
Team Echo III Mass Item Weight Left
Starting 800 g 800g Pre-amp 7.5g 792.5g
Satellite 10x10x12 42g 750.5g
Camera with battery and film 140.3g 610.2g Timing circuit with battery and switch 68g 542.2g
Heater 29.2g 513g
9 volt battery 46g x3 375g
Flag 1.6g 373.4g
HOBO 34.7g 338.7g
Microphone approx. 20g 318.7g
Flight Tube 7g 311.7g
Rat/Roach approx 20g 291.7g
Second camera approx 150g 141.7g
Insulation approx 10g 131.7g
Sound Tube 5g 126.7g
Team Echo III Budget
Item Bought Price Left
Starting $275.00 Rat/Cockroach Banisher Kit and $48.60 $226.40 Condenser microphone kit with pre-amp
Batteries estimated $40 $186.40
IR Film and processing approx. $30 $156.40
PVC and tubes max $10 $146.40
Springs (2) $5 $141.40
IR Camera and filter $75 $66.40
Tube and Washer system $5 $61.40
Advantix Film x2 $15 $46.40
Miscellaneous $46.40 $0.00