Humidity sensor system

Details Humidity sensor system Humidity sensor system

1987-01-29

1988-09-13

Levy, Stewart J.

Measuring and testing

Gas analysis

Moisture content or vapor pressure

73338, G01N 2568

Patent

active

047700408

ABSTRACT:
A humidity sensor system includes a probe in the form of a hollow tubular housing which is attached to a fixed surface. The remote end of the housing has a sensing cap mounted thereto. A liquid coolant supply tube is disposed in the housing and includes a spray nozzle which is located within the cap, but spaced from the inner surface of the cap. The cap is made of a porous material capable of absorbing the liquid coolant sprayed from the nozzle. A temperature detector is mounted to the cap for detecting the temperature change. Also included in the humidity sensor system is a microcomputer which controls the sensor probe, and calculates humidity from the temperature data it generates.

REFERENCES:
patent: 1100171 (1914-06-01), Brown
patent: 3124002 (1964-03-01), Pierson et al.
patent: 3253465 (1966-05-01), Miller
patent: 3603135 (1971-09-01), Kawaguchi
patent: 3712140 (1973-01-01), Grasso et al.
patent: 3930398 (1976-01-01), Levina et al.
patent: 4155245 (1979-05-01), Coe
patent: 4222261 (1980-09-01), Leblance et al.
patent: 4481833 (1984-11-01), Bajek

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