Accession Number : ADD001970

Title :   Directional Low-Frequency Ring Hydrophone.

Descriptive Note : Patent Application,

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON D C

Personal Author(s) : Rogers,Peter H ; Zalesak,Joseph F

Report Date : 23 Aug 1974

Pagination or Media Count : 16

Abstract : The patent application relates to directional low frequency ring hydrophones and more particularly to small size circumferentially polarized ring hydrophones operable at extremely low frequencies which are well below any axisymmetric mechanical resonances of the ring, such a ring hydrophone having a high sensitivity to sound incident in the axial direction compared with the sensitivity to sound incident in the radial direction over a band of very low frequencies.

Descriptors :   *Hydrophones, Patents, Piezoelectric transducers, Low frequency

Subject Categories : Acoustic Detection and Detectors

Distribution Statement : APPROVED FOR PUBLIC RELEASE