Accession Number : AD0164338

Title :   Fluid Rotary Speed Sensor.

Descriptive Note : Patent,

Corporate Author : DEPARTMENT OF THE AIR FORCE WASHINGTON D C

Personal Author(s) : Egli,Werner H. ; Erickson,Donald J.

Report Date : 19 SEP 1972

Pagination or Media Count : 4

Abstract : The patent describes a fluid rotary speed sensor having a concave cylindrical surface placed in close proximity to a rotating shaft and with a slight eccentricity so that the clearance between the shaft and the concave cylindrical surface varies as a function of circumferential angle. Hydrodynamic pumping causes a differential pressure between two suitably located taps in the concave surface. This differential pressure is proportional to the shaft speed.

Descriptors :   *Detectors, *Patents, Rotation, Shafts(Machine elements), Velocity, Fluids, Pressure

Subject Categories : Test Facilities, Equipment and Methods

Distribution Statement : APPROVED FOR PUBLIC RELEASE