Accession Number : ADD014724

Title :   Helical Magnetostrictive Core Line Hydrophone.

Descriptive Note : Patent, Filed 23 May 69, patented 23 Oct 90,

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON DC

Personal Author(s) : Parker, David E ; Malootian, Markay

Report Date : 23 Oct 1990

Pagination or Media Count : 4

Abstract : This patent discloses a magnetostrictive flexible line hydrophone having a magnetostrictive element which is an annealed nickel strip within a toroidal winding. Electrical wires are disposed inside the cylinder formed by the nickel strip and abut a pressure release material about which the strip has been wound. These wires form a toroidal winding by coupling to a second group of insulated wires disposed against the outer surface of the nickel strip. (JHD)

Descriptors :   *HYDROPHONES, *MAGNETOSTRICTION, *PATENTS, ANNEALING, COUPLING(INTERACTION), ELECTRIC WIRE, EXTERNAL, NICKEL, PRESSURE, RELEASE, SURFACES, TOROIDS, WINDING

Subject Categories : Acoustic Detection and Detectors

Distribution Statement : APPROVED FOR PUBLIC RELEASE