Apollo 18Launch Readiness Review

Maggie WilliamsPeter MerrickCody Gondek

Nathan Buzzell

Chris DavidoffJacob Hermann

Jared LevinLindsey 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 OverviewBottom box

o Critical systems• Camera

• Micro controllers

• Heater

• Sensorso Microphoneo Temperatureo g-forceo Humidityo 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