Accession Number:

AD0766786

Title:

Expendable Hydrophone for Sonobuoy Application

Descriptive Note:

Final rept.

Corporate Author:

NAVAL RESEARCH LAB ORLANDO FL UNDERWATER SOUND REFERENCE DIV

Report Date:

1973-09-17

Pagination or Media Count:

46.0

Abstract:

A low-cost, low-noise, high-sensitivity hydrophone has been developed for possible application in an expendable, air-deployable, passive sonar array system. An acoustic element consisting of two Type III ceramic radially poled cylinders was combined with a low-noise, high-gain preamplifiver to produce a hydrophone with a sensitivity of -149 dB re 1 Vmicro Pa, operating frequency range of 10 Hz to 3kHz, and depth capability of 4550 m. In addition to a description of the hydrophone and its operating specifications, a discussion of design criteria and prototype selection is included.

Subject Categories:

  • Acoustic Detection and Detectors

Distribution Statement:

APPROVED FOR PUBLIC RELEASE