Accession Number:

ADD018331

Title:

Fiber Optic Lever Towed Array.

Descriptive Note:

Patent, Filed 31 Oct 83, patent 12 Nov 96,

Corporate Author:

DEPARTMENT OF THE NAVY WASHINGTON DC

Personal Author(s):

Report Date:

1996-11-12

Pagination or Media Count:

5.0

Abstract:

A small diameter towed acoustic line array comprising a plurality of miniature fiber optic lever hydrophones spaced at preselected locations along the array and held in place by fiber holders. The array hydrophones are enclosed within a tubular outer sheath which is filled with an acoustically transparent fluid. The hydrophones respond to either the pressure mode or the pressure gradient mode, each hydrophone further comprising at least one receiving and one transmitting optic fiber of the same diameter, a covering sheath, a clear elastomer and a small reflector. The information received is transmitted to and processed by a beamformer external to the array.

Subject Categories:

  • Acoustic Detection and Detectors
  • Fiber Optics and Integrated Optics
  • Acoustooptic and Optoacoustic Devices

Distribution Statement:

APPROVED FOR PUBLIC RELEASE