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Optical Paramagnetic/Diamagnetic Gas Sensor.
Patent filed 10 Feb 88, patented 24 Oct 89,
DEPARTMENT OF THE NAVY WASHINGTON DC
Pagination or Media Count:
An improved gas sensor which optically senses a signal indication proportional to the concentration of a paramagneticdiamagnetic gas in a gaseous mixture. In a preferred embodiment of the invention a chamber is adapted to contain a gaseous mixture to be measured for the concentration of a para magneticdiamagnetic gas in the mixture. An optical source provides light to a movable element to be displaced by a distance proportional to the concentration of the paramagneticdiamagnetic gas in the gaseous mixture. A photodetector circuit receives light from the movable element having a characteristic indicative of the distance that the movable element was displaced. In response to such received light, the photodetector provides a signal output proportional to the concentration of the paramagneticdiamagnetic gas in the gaseous mixture. rrh
APPROVED FOR PUBLIC RELEASE