Acoustic Transient Generator.
Patent, Filed 4 Aug 64, patented 2 Oct 90,
DEPARTMENT OF THE NAVY WASHINGTON DC
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This patent pertains to an underwater transient sound generator for broadcasting optimum acoustical sonic energy in sea water with an appropriate intensity and frequency spectrum to achieve passivation of acoustical mines. A high pressure bubble is released from a chamber while a resilient diaphragm is simultaneously vibrated, the diaphragm having at least one of its surfaces in contact with the sea water. The system provides an improved pneumatic-mechanical impact sound source that produces a controllable distribution of high power, broad band spectrum acoustical energy, to temporarily inactivate acoustical mines, while masking the noise of the ship as it passes the mine. Keywords PAT-CL-367-142. kr
- Acoustic Detection and Detectors
- Underwater Ordnance