Detection of CO2 in a Hyperbaric Gaseous Environment.
Abstract
The patent application relates to the detection of CO2 by a sensor of miniature size which can be placed in a saturation diver's breathing apparatus. The monitor is an infrared source which emits radiaiton. It is transmitted through a chamber containing a mixed sample of gas. The gas is subjected to density modulation by a piston which compresses and expands the gas in the chamber in a precisely controlled manner. An infrared detector measures the amount of radiation passing through the gas so that the gas concentration is determined by the fractional change in radiation at the detector. The invention also includes a specific radiation detector for detecting the radiation and monitoring the total light flux reaching the detector.
Document Details
- Document Type
- Technical Report
- Publication Date
- Sep 27, 1974
- Accession Number
- ADD001733
Entities
People
- Kevin G. Williams
Organizations
- United States Department of the Navy