Accession Number : ADD001630

Title :   Acoustic Rotation Rate Sensor.

Descriptive Note : Patent,

Corporate Author : DEPARTMENT OF THE AIR FORCE WASHINGTON D C

Personal Author(s) : Newburgh,Ronald G ; Budreau,Alan J

Report Date : 07 Oct 1975

Pagination or Media Count : 6

Abstract : The patent describes a Sagnac effect type device in which the relative time displacements of clockwise and counterclockwise acoustic surface waves propagating around a rotatable annular substrate member are used to determine relative rotation between the substrate member and its supporting frame. The acoustic surface waves are generated and subsequently detected by an electromagnetic wave/acoustic surface wave transducer. The transducer is closely proximate to the annular substrate member and in a fixed frame relative to its rotational motion.

Descriptors :   *Detectors, *Patents, Rotation, Rates, Acoustic waves, Surface waves, Transducers, Propagation, Measuring instruments

Subject Categories : Test Facilities, Equipment and Methods

Distribution Statement : APPROVED FOR PUBLIC RELEASE