Accession Number : ADD008288

Title :   Differential Pressure Gauge.

Descriptive Note : Patent,

Corporate Author : DEPARTMENT OF THE ARMY WASHINGTON DC

Personal Author(s) : Ethridge,Noel H

Report Date : 15 Jul 1980

Pagination or Media Count : 7

Abstract : A gauge for measuring differential pressure in an explosive blast wave, wind tunnel, or shock tube, utilizes a tubular housing having a conical axially aligned inlet port, a cylindrical cavity which is divided into fore and aft sections by a transversely disposed pressure responsive diaphragm. A plurality of symmetrically disposed off-set stagnation inlet tubes and a plurality of circumferentially positioned flow compensated side-on over-pressure input slots are used to communicate with each of the respective fore and aft sections of the cavity. Variation in stagnation and side-on overpressures cause diaphragm movement which is detected by a friction-free sensing member. (Author)

Descriptors :   *Patents, *Pressure gages, *Pressure gradients, Dynamic pressure, Blast waves, Overpressure, Pressure measurement, Diaphragms(Mechanics)

Subject Categories : Test Facilities, Equipment and Methods
      Armor

Distribution Statement : APPROVED FOR PUBLIC RELEASE