Accession Number : ADD003218
Title : Directional Low-Frequency Ring Hydrophone.
Descriptive Note : Patent,
Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON D C
Personal Author(s) : Rogers,Peter H ; Zalesak,Joseph F
Report Date : 21 Sep 1976
Pagination or Media Count : 9
Abstract : The patent relates to a small low frequency acoustic receiver which is formed into a cylinder or ring by use of a plurality of separate elements of piezoelectric material. Each element is secured with its sides in face-to-face relationship with an electrode between each joined face in contact with each adjacent element. The electrodes are alternately connected into an electrical circuitry for transmitting electrical signals to a receiver.
Descriptors : *Hydrophones, *Patents, Extremely low frequency, Directional, Rings, Piezoelectric materials, Receivers, Cylindrical bodies, Barium titanates
Subject Categories : Acoustic Detection and Detectors
Distribution Statement : APPROVED FOR PUBLIC RELEASE