Apollo 18Launch Readiness Review

Maggie Williams

Peter Merrick

Cody Gondek

Nathan Buzzell

Chris Davidoff

Jacob Hermann

Jared Levin

Lindsey Buxman

11/27/12

Mission Overview

• We will calculate the speed of sound as our satellite rises to an altitude of 30km

• We hypothesise that the speed of sound will change in relation to the changes in temperature and pressure

• This data could be useful for scientists calculating the density of the atmosphere of another planet

Design Overview

Bottom boxo Critical systems

• Camera

• Micro controllers

• Heater

• Sensors

o Microphone

o Temperature

o g-force

o Humidity

o Pressure

Top boxo Speakerso Heater

Dry Ice Test

Dry Ice test- Temperature

Dry Ice test- Pressure and Humidity

Dry Ice test- Experiment

Consistent data, but worse with time

Calibration/Wind Test

• Microphone

• Filtering o Passive - thresholdo Active - stray data

• Precision of the clocko Percent error due to clock

Wind test

Drop Test

• Heights

• Drop angles

Kick/Whip Test

• minimal damage

Expected Results

• We expect to record accurate data from all sensors

• Hope to see predicted trends in this data

• From this flight, we hope to see how a change in altitude changes the speed of sound

Biggest Worries

• The microphone won't pick up the sound from the speakers

• The carbon fiber tubes snap.• The camera lense fogs up.

Requirement Compliance