The ARL/FEU (Fluids Engineering Unit) Semi-Anechoic Chamber.
Abstract
This memorandum documents the design and acoustic characteristics of the ARL/Fluids Engineering Unit semi-anechoic chamber. It is located on the first floor of the Garfield Thomas Water Tunnel and has internal dimensions of 11 x 12 x 8 feet. The sound absorbing walls are primarily composed of rock-wool fiberglass insulation, air voids, and wood frame members. Based on measurements of the ambient noise level, reverberation time, transmission loss, and inverse square law, the chamber is considered semi-anechoic for frequencies less than approximately 1kHz and moderately anechoic for greater frequencies.
Document Details
- Document Type
- Technical Report
- Publication Date
- Sep 29, 1975
- Accession Number
- ADA021247
Entities
People
- Elissa W.P. Wong
- G. C. Lauchle
Organizations
- Pennsylvania State University