Humidity dew point sensor

Details Humidity dew point sensor Humidity dew point sensor

1990-11-08

1991-07-02

Cuchlinski, Jr., William A.

Thermal measuring and testing

By applying known thermal gradient

374 20, 374 18, G01N 2568, G01N 2566

Patent

active

050281437

ABSTRACT:
An elongated mirrored surface has a temperature gradient established thereacross. Condensation forms along the mirrored surface and the edge of the condensation next to the portion of the mirrored without condensation is where the dew point temperature exists. A scanning means is provided for locating this edge of the condensation. Temperature sensing means, located at the edge, measures the dew point temperature.

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patent: 3597084 (1971-08-01), Pagano
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patent: 3869912 (1975-03-01), Horvath
patent: 3875794 (1975-04-01), Horvath
patent: 4276768 (1981-07-01), Dadachanji
patent: 4629333 (1986-12-01), Dosoretz et al.

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