Ultrasonic measurement of the relative concentration of gases in a binary gas mixture

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

The combination of volumetric flow meters (rotameters), mass spectrometers, and individual chemical sensors are available to measure gas concentration on a chemical basis. Instead of using a chemical sensor, this project develops a physical sensor based on the thermodynamic properties of gas, speed of sound and temperature. With a Wave Guide (ultrasonic cell) configured to provide the speed of sound and a thermocouple to provide temperatures, the concentrations of the gases in the mixture are calculated. The theory is tested by comparing ultrasonically calculated concentrations to volumetrically measured concentrations. However, ultrasonic absorption of the gases can inhibit the detection of the wave arrival time. Nitrous oxide (N2O) in oxygen (O2) were selected as gases of interest to support an anesthesiological application. A device based on the speed of sound and temperature in the gas mixture has the advantage of improved portability, lower cost, and reduced analysis time.

Original languageEnglish
Title of host publicationAmerican Society of Mechanical Engineers, Dynamic Systems and Control Division (Publication) DSC
Place of PublicationNew York, NY, United States
PublisherASME
Pages1125-1134
Number of pages10
Volume55-2
StatePublished - Dec 1 1994
Externally publishedYes
EventProceedings of the 1994 International Mechanical Engineering Congress and Exposition - Chicago, IL, USA
Duration: Nov 6 1994Nov 11 1994

Other

OtherProceedings of the 1994 International Mechanical Engineering Congress and Exposition
CityChicago, IL, USA
Period11/6/9411/11/94

Fingerprint

Ultrasonic measurement
Binary mixtures
Gas mixtures
Acoustic wave velocity
Gases
Chemical sensors
Ultrasonic absorption
Mass spectrometers
Thermocouples
Temperature
Thermodynamic properties
Ultrasonics
Oxides
Oxygen
Sensors
Costs

ASJC Scopus subject areas

  • Software
  • Mechanical Engineering

Cite this

Levene, H. (1994). Ultrasonic measurement of the relative concentration of gases in a binary gas mixture. In American Society of Mechanical Engineers, Dynamic Systems and Control Division (Publication) DSC (Vol. 55-2, pp. 1125-1134). New York, NY, United States: ASME.

Ultrasonic measurement of the relative concentration of gases in a binary gas mixture. / Levene, Howard.

American Society of Mechanical Engineers, Dynamic Systems and Control Division (Publication) DSC. Vol. 55-2 New York, NY, United States : ASME, 1994. p. 1125-1134.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Levene, H 1994, Ultrasonic measurement of the relative concentration of gases in a binary gas mixture. in American Society of Mechanical Engineers, Dynamic Systems and Control Division (Publication) DSC. vol. 55-2, ASME, New York, NY, United States, pp. 1125-1134, Proceedings of the 1994 International Mechanical Engineering Congress and Exposition, Chicago, IL, USA, 11/6/94.
Levene H. Ultrasonic measurement of the relative concentration of gases in a binary gas mixture. In American Society of Mechanical Engineers, Dynamic Systems and Control Division (Publication) DSC. Vol. 55-2. New York, NY, United States: ASME. 1994. p. 1125-1134
Levene, Howard. / Ultrasonic measurement of the relative concentration of gases in a binary gas mixture. American Society of Mechanical Engineers, Dynamic Systems and Control Division (Publication) DSC. Vol. 55-2 New York, NY, United States : ASME, 1994. pp. 1125-1134
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