Accession Number:

ADD012114

Title:

Expendable Underwater Acoustic Projector.

Descriptive Note:

Patent,

Corporate Author:

DEPARTMENT OF THE NAVY WASHINGTON DC

Personal Author(s):

Report Date:

1985-04-30

Pagination or Media Count:

8.0

Abstract:

An expendable sound source provides a cost effective projection of acoustic energies in the ocean. A tubular housing contains a d.c. motor that locates its shaft coaxial with the housing. Cylindircally-shaped camming blocks engage spurs in a pair of rigid pistons at both ends of the tubular housing of the camming surfaces and the motor speed. A flywheel on the shafts and journaling supports assure the projection of arbitrary waveforms and a key-and-keyway cooperation betweeen the housing and prevents the pistons turning in the housings. A self-contained, high energy battery pack is actuated by magnetic reed switch to assure reliable long term projection after deployment. Pressure compensation can be included. Patents

Subject Categories:

  • Acoustics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE