Accession Number : ADD000264

Title :   Oxygen Partial Pressure Sensor.

Descriptive Note : Patent,

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON D C

Personal Author(s) : Ringwall,Carl G ; Keltz,William L

Report Date : 23 Apr 1974

Pagination or Media Count : 10

Abstract : A pressure programmed, piezoelectric sensor for the partial pressure of oxygen in a helium-oxygen breathing gas mixture is described in the patent, together with associated electronic circuitry for use in a diving apparatus. The sensor uses acoustic signal phase shift to generate electrical signals by which the apparatus maintains oxygen partial pressure within the required limits for breathing at various water depths.

Descriptors :   *Patents, *Gas detectors, *Partial pressure, *Piezoelectric gages, Diver equipment, Acoustic properties, Oxygen

Subject Categories : Physical Chemistry
      Test Facilities, Equipment and Methods

Distribution Statement : APPROVED FOR PUBLIC RELEASE