Ultrasonic Oxygen Sensor.

Abstract

The respirable gases generated by an on board oxygen generation system (OBOGS) are comprised of a mixture of oxygen, argon, and nitrogen. This gas mixture can be measured ultrasonically to determine the concentration of oxygen within the mixture. This final report describes an ultrasonic measurement system that has been successfully tested to a simulated altitude of 20,000 ft. The concentration of oxygen calculated from ultrasonic data is accurate to approximately 1% over the range of 21 to 95%. In addition to measuring the concentration of oxygen, the ultrasonic oxygen sensor can also measure the flow rate of the respirable gases produced by an OBOGS accurate to approximately 1.6 L/min. Keywords: Ultrasonic, Respirable gases, Altitude chamber.

Open PDF

Document Details

Document Type
Technical Report
Publication Date
Dec 01, 1987
Accession Number
ADA189723

Entities

People

  • W. R. Dagle

Tags

Communities of Interest

  • Advanced Electronics
  • Biomedical
  • Sensors
  • Space
  • Weapons Technologies

DTIC Thesaurus Topics

  • Aerospace Medicine
  • Air Force
  • Altitude
  • Altitude Chambers
  • Calibration
  • Classification
  • Detectors
  • Electronics
  • Equations
  • Flow Rate
  • Flowmeters
  • Governments
  • Liquid Crystal Displays
  • Measurement
  • Oxygen Sensors
  • Piezoelectric Crystals
  • Security

Readers

  • Aerosol Science/Aerosol Physics
  • Materials Science
  • Surface Engineering/Surface Coating Technology.