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Environmental Test Engineering and Integration
Code 549
Environmental Project
Structural Dynamics
•
 Facilities
- Vibration Test
- Acoustic Test
- Modal Survey Test
- High Capacity Centrifuge
- Static Test
- Mass Prop. Measurement
•
Personnel
•
Related Links
Electromagnetic
Space Simulation
 
 
ACOUSTIC TEST FACILITY
Acoustic Test Facility
Acoustic Test Facility consists of a 10m x 8.2m x 12.8m reverberation chamber with 2 horns and a closed loop control system. Acoustic energy is generated by modulating the flow of GN2 through the generators attached to the horns. The closed loop control system adjusts the sound pressure level within the chamber to the required spectrum based on the signals from up to 8 microphones. Digital data acquisition systems condition, record, and analyze up to 256 channels of accelerometer, microphone, and strain gage signals. The facility can be operated as a Class 100,000 clean room when necessary.


Parameters:
Generators (2): 40kW, electro-pneumatic WAS3000
Horns (2): 25Hz exponential, 50Hz hypex
Maximum SPL: 150dB
Frequency Range: 25Hz to 10kHz

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Editor: J. Killam
NASA Official: D. Robinson
Last Updated: March 25, 2024
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