Optical Paramagnetic/Diamagnetic Gas Sensor.
Patent Application, Filed 20 Feb 88,
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 paramagneticdiamagnetic gas in the mixture. An optical source provides light to a movable element coupled to the chamber. In response to the application of a magnetic field across the chamber, any paramagneticdiamagnetic gas in the chamber causes the 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.
- Test Facilities, Equipment and Methods
- Magnetic and Electric Field Detection and Detectors