Acoustic Measurements on Goodyear Rubber Panels.
NAVAL RESEARCH LAB ORLANDO FLA UNDERWATER SOUND REFERENCE DIV
Pagination or Media Count:
Insertion loss were measured in the frequency range 1 to 100 kHz under ambient conditions in the lake and in the range 50 to 200 kHz in the highfrequency tank. Insertion loss is defined as 20 log incident sound pressuretransmitted sound pressure. The decibel values on the drawings are, therefore, positive. Except for the butyl panel, the loss was less than 0.2 dB at frequencies below 50 kHz. This is the minimum detectable loss, as imposed by the boundary conditions, the size of the panel, and the test facilities. The results of the measurements are shown on the drawings of enclosure 1.
- Elastomers and Rubber
- Structural Engineering and Building Technology