Accession Number : ADD001297

Title :   Acousto-Optic Underwater Detector.

Descriptive Note : Patent,

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON D C

Personal Author(s) : Cuomo,Frank W

Report Date : 20 Aug 1974

Pagination or Media Count : 5

Abstract : The patent describes a low frequency or pressure-gradient hydrophone comprising an optical reflector experiencing displacements responsive to acoustic waves. A beam light from a light source is carried by a first group of of fiber optics guides and is incident upon the optical reflector. The light reflected from the reflector is carried by a second group of fiber optics guides to a light detector. Any displacements of the reflector due to pressure gradient due to acoustic waves impinging on the opposite sides of the reflector are detected by changes in intensity of reflected light from the light source.

Descriptors :   *Hydrophones, *Transducers, *Patents, Acoustooptics, Fiber optics, Underwater sound equipment, Underwater communications

Subject Categories : Acoustics
      Non-radio Communications

Distribution Statement : APPROVED FOR PUBLIC RELEASE