Hydrocarbon vapor sensor and system

Details Hydrocarbon vapor sensor and system Hydrocarbon vapor sensor and system

1990-04-27

1992-01-14

Williams, Hezron E.

Measuring and testing

Gas analysis

Gas chromatography

73 3105, 73 492, G01N 2712, G01M 316

Patent

active

050799444

ABSTRACT:
A hydrocarbon vapor sensor which is simple and low cost and can easily detect the existence of hydrocarbon vapor. The device is temperature compensated so that a change in resistance due to a change in temperature is avoided and an arcurate response is always provided. The sensor can be used in a system in which a number of sensors are provided at various depths to determine whether a leak or a ground spill has occurred.

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patent: 4387359 (1983-06-01), Tien et al.
patent: 4631952 (1986-12-01), Donaghey
patent: 4633704 (1987-01-01), Tantram et al.
patent: 4674320 (1987-06-01), Hirschfeld
patent: 4745796 (1988-05-01), Abdelrahman et al.
patent: 4928513 (1990-05-01), Sugihara et al.
New Dimensions, "Sensor Protects Groundwater and Phone Cables", Design News, Nov. 11, 1989, p. 16.

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