Accession Number : ADD005613

Title :   Acoustic Coupler.

Descriptive Note : Patent,

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON D C

Personal Author(s) : Moore,Donald K ; Beaman,George R ; Hightower,John D ; Graham,Craig W , Jr

Report Date : 10 Oct 1978

Pagination or Media Count : 6

Abstract : An acoustic coupler is provided for extending the listening and signal gathering capabilities of an existing cable connected hydrophone system. The acoustic coupler includes a sensor, such as an additional hydrophone, an acoustic projector, and a cable which electrically connects the acoustic projector to the additional hydrophone. A modulator is interconnected in the cable between the projector and the additional hydrophone for modulating signals received by the additional hydrophone on a carrier wave which is within the bandpass of the existing hydrophone. With this arrangement the acoustic projector can be placed in water within listening distance of the existing hydrophone so that signals from the additional hydrophone can be transmitted over the existing hydrophone and its cable system. (Author)

Descriptors :   *Patents, *Acoustic equipment, *Couplers, Hydrophones, Modulators

Subject Categories : Acoustic Detection and Detectors

Distribution Statement : APPROVED FOR PUBLIC RELEASE