Accession Number : ADD015134

Title :   Differential Pressure Sensor.

Descriptive Note : Patent,Filed 1 Nov 82, patented 10 Sep 91,

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON DC

Personal Author(s) : Rowzee, Charles A ; Sherman, John D

Report Date : 10 Sep 1991

Pagination or Media Count : 8

Abstract : A pressure sensor for use with a sea mine for detecting the presence of a passing vessel by sensing a change in ambient water pressure caused by the Bernoulli effect relating to hydrodynamic flow induced by the vessel's motion. The sensor emits a responsive signal which can be used alone, or with signals from other influence sensors (acoustic and magnetic), to determine when the sea mine should be exploded. The sensor provides for equal sensitivity independent of the ambient pressure of the water at various depths at which sea mines may be planted, and employs electrical filters to eliminate noise. (Author)

Descriptors :   DETECTION, DETECTORS, ELECTRICAL PROPERTIES, FILTERS, FLOW, HYDRODYNAMICS, MOTION, NAVAL MINES, PRESSURE, PRESSURE GRADIENTS, SENSITIVITY, WATER

Subject Categories : Underwater Ordnance

Distribution Statement : APPROVED FOR PUBLIC RELEASE