Accession Number : AD0778337

Title :   The USRD Type F39A 1-kHz Underwater Helmholtz Resonator.

Descriptive Note : Final rept.,

Corporate Author : NAVAL RESEARCH LAB WASHINGTON D C

Personal Author(s) : Henriquez,T. A.

Report Date : 10 APR 1974

Pagination or Media Count : 13

Abstract : A reliable, small, lightweight sound source capable of producing a sound pressure level of 170 dB re 1 microPa at 1 kHz using the principle of a Helmholtz resonator was designed and built to satisfy a requirement of the Naval Ship Research and Development Center for a transducer to be used at 300-m depth in the ocean. (Author)

Descriptors :   *Electroacoustic transducers, *Underwater sound, Lightweight, Ceramic materials, Piezoelectric materials, Underwater sound equipment

Subject Categories : Acoustics

Distribution Statement : APPROVED FOR PUBLIC RELEASE