Team DionysusTeam DionysusCritical Design ReviewCritical Design Review

Alijah Smith, Chris Koncilja, Elise Alijah Smith, Chris Koncilja, Elise Kowalski, Josh Tiras, Mike Beach, Kowalski, Josh Tiras, Mike Beach,

Becca SeigelBecca Seigel

10/06/0910/06/09

Organization ChartOrganization Chart

Mission OverviewMission Overview

• Mission Overview– Objective: Use infrared sensor and an ultraviolet

sensor to determine the flux of infrared and ultraviolet light throughout the troposphere and lower stratosphere

– We expect to prove that UV and IR light intensity increase with altitude

– Hypothesis: UV and IR light intensity increase with altitude

– Understanding penetration of light can help protect people from radiation from the sun. Large amounts of radiation can damage people’s skin and have other negative effects on other life on earth.

Requirements Flow DownRequirements Flow Down

Level 0 Survive Mission

Primary Mission

Secondary Mission

Making it to Launch

Level 1 Testing Structure

Purchase and test sensors

Test camera, pressure, and temperature sensors

Keeping schedule, budget, and mass budget

DesignDesign

• Use sensors attached to top of cube and convert the data received from amps to volts.

• Parts– Ultraviolet Sensor – ordered– Infrared Sensor – ordered

• Expected to arrive Oct. 6th, 2009

BudgetBudgetItem Amount Budgeted Cost Actual Cost Supplier

Digital Camera 1 $0.00 $0.00 CU

2GB Memory Card 1 $0.00 $0.00 CU

AVR Microcontroller 1 $0.00 $0.00 CU

Heater System 1 $0.00 $0.00 CU

HOBO 1 $0.00 $0.00 CU

Foam Core 1 $0.00 $0.00 CU

Switches 2 $0.00 $0.00 CU

Batteries (9V, AA) 4 $0.00 $0.00 CU

American Flag 1 $0.00 $0.00 CU

Flight String 1 $0.00 $0.00 CU

Test Batteries (9V) 10 $12.00 N/A Radio Shack (special offer)

Dry Ice 5lbs $5.00 N/A Safeway

Cooler 1 $0.00 $0.00 Alijah Smith

Black Light Bulb 1 $0.00 $0.00 Becca Seigel

Infrared Sensor 1 $30.00 $19.00 Boston Electronics

Ultraviolet Sensor 1 $30.00 $25.00 Boston Electronics

Shipping Cost $10.00 $5.56 Boston Electronics

Spare IR Sensor 1 $30 N/A

Spare UV Sensor 1 $30.00 N/A

Test/Building Material (Foil, Tape, Flight tube) $10.00 N/A Wal-Mart

Total 30 $157.00 $49.56

Mass BugdetMass Bugdet

Item Weight (g) Dimensions

Digital Camera 220 45x75x95 mm

Batteries+AVR 150 20x80x110 mm

HOBO 30 68x48x19 mm

Heater System 100 10x50x50 mm

Infrared Sensor 20 really small

Ultraviolet Sensor 20 really small

Total 540

ScheduleSchedule• October• 4th – Team Meeting: start construction if possible, Finish DD Rev A/B, CDR slides• 5th – Team meeting: Finish CDR slides, practice presentation• 6th – DD rev A/B due, CDR slides due• 8th – Present CDR• 11th – Team meeting: Construction• 12th – Team meeting: Construction, empty shell/ mass simulator tests, start DD Rev C• 13th – Team meeting: Construction, sensor tests, DD Rev C• 18th – Team meeting: Construction, payload tests• 19th – Team meeting: finish DD Rev C, start LRR slides• 20th – Team meeting: construction, sensor and structure tests, LRR slides• 25th – Team meeting: All Testing Complete• 26th – Team meeting: Final touches, Rev C and/or LRR slides• 27th – Pre Launch Inspection• 29th – Mission Simulation• November• 1st – Team meeting: LRR slides, start team video• 2nd – Team meeting: finish LRR slides, practice• 3rd – DD Rev C due, LRR Slides due, present• 6th – BalloonSat weigh-in by 2:00 pm• 7th – LAUNCH!!!• 9th – Team meeting: Work on data and/or team video• 10th – Team meeting: Data, start final presentation/report• 12th – bring raw flight data to class• 15th – Team meeting: data, team video, start DD rev D• 16th – Team meeting: final report/ presentation, DD rev D• 17th – Team meeting: final report/presentation, DD rev D• 22nd-28th – individual work on report and video, if needed, and DD Rev D• 30th – Team meeting: finish final report/presentation, practice• December• 1st – Data Due Final Team Presentations and Report due, all data due, present, • Team meeting: finish DD rev D• 5th – Design Expo, DD rev D due, team video due

Test PlanTest Plan

• Payload Testing: Whip, Drop, Cold, Stair Tests• Sensor Testing: AVR test, Calibration, Blacklight, Heat

lamp• Schedule

o 11th – Team meeting: Constructiono 12th – Team meeting: Construction, empty shell/mass sim. testo 13th – Team meeting: Construction, sensor testso 18th – Team meeting: Construction, payload testso 20th – Team meeting: construction, sensors and structure testso 25th – Team meeting: All Testing Completeo 27th – Pre Launch Inspectiono 29th – Mission Simulation

Expected ResultsExpected Results

• We expect to see an increase in radiation as altitude increases.

• UV: 0 - 0.6 Watts per m^2 per nanometer

• IR Ground: 0.5-1 Watts per m^2 per nanometer

• IR at altitude: 1-1.5 Watts per m^2 per nanometer

Biggest WorriesBiggest Worries

• Sensor Accuracy/Error

• Severity of Impact

• Parachute Failing

• Finding proper resistor for amps to volts conversion