Accession Number : ADD003430

Title :   Thermooptic Sonar System.

Descriptive Note : Patent,

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON D C

Personal Author(s) : Westervelt,Peter J ; Larson,Richard S ; Muir,Thomas G

Report Date : 14 Oct 1975

Pagination or Media Count : 9

Abstract : The patent relates to a means of generating usable sonar beams in water comprising, a high powered laser, a standpipe for conducting a beam from the laser to a predetermined depth in the water, a beam splitter for directing the laser beam along two paths in the water, the laser beam being absorbed in the water and the energy contained therein converted to acoustical energy by the expansion of the water along the paths thereby generating a coherent acoustic beam perpendicular to the two paths.

Descriptors :   *Sonar projectors, *Patents, Laser beams, Sound generators, Thermal expansion

Subject Categories : Acoustic Detection and Detectors

Distribution Statement : APPROVED FOR PUBLIC RELEASE