Accession Number : ADD017705

Title :   Sensor for Locating Objects in the Sea Having a Conductive Shell to Inject Electric Current into the Sea and a Sensor Coil in the Shell.

Descriptive Note : Patent, Filed 26 Feb 93, patented 4 Jul 95,

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON DC

Personal Author(s) : Wynn, William M ; Bono, John T

Report Date : 04 Jul 1995

Pagination or Media Count : 9

Abstract : A sensor for sensing the location of objects buried in the loose sediment in the bed of the sea. A hollow, cylindrically symmetric, conductive shell is used to inject current into seawater at its tips along its axis. A sensor coil oriented along the axis ignores all magnetic fields except those along the axis, and is used to measure return signals. This is particularly useful in detecting dielectric objects buried in the sediment and in rejecting motion relative to the seabed.

Descriptors :   *MINE DETECTION, *ELECTRIC FIELDS, *PATENTS, DETECTORS, DIELECTRICS, SHELLS(STRUCTURAL FORMS), ELECTRICAL CONDUCTIVITY, ELECTRIC CURRENT, SEA WATER, SEDIMENTS, OCEAN BOTTOM, ELECTRIC COILS

Subject Categories : Magnetic & Electric Fld Detection & Detectors

Distribution Statement : APPROVED FOR PUBLIC RELEASE