Accession Number : ADD017559

Title :   Pitch Sensor System.

Descriptive Note : Patent, Filed 24 Mar 94, patented 23 May 95,

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON DC

Personal Author(s) : Striffler, Foster L

Report Date : 23 May 1995

Pagination or Media Count : 9

Abstract : A very small pitch sensor which accurately measures angular rotation about the pitch axis while being substantially insensitive to angular rotations about the roll or yaw axes. The pitch sensor comprises a spherical cavity that is fluid filled. The fluid fill further comprises one half conductive fluid and one half dielectric fluid. The fluids are selected to be immiscible and of different densities. The inside of the spherical cavity is segmented into three surface areas for connection to an electronic circuit. The electronic circuit measures voltage differentials between the segmented surface areas which vary with the conductive fluid surface in contact with the respective segmented areas. The conductive fluid surface contact area varies with the angular rotation of the cavity and about the pitch axis. (AN)

Descriptors :   *PITCH(MOTION), *ELECTRONIC EQUIPMENT, *PATENTS, SIGNAL PROCESSING, OSCILLATORS, YAW, DETECTORS, DIELECTRICS, VOLTAGE, SENSITIVITY, ELECTRICAL CONDUCTIVITY, CURRENT AMPLIFIERS, ROTATION, SEGMENTED, ANGULAR MOTION, MAGNETOHYDRODYNAMICS

Subject Categories : Electrical and Electronic Equipment

Distribution Statement : APPROVED FOR PUBLIC RELEASE