Humidity sensor and method for making

Details Humidity sensor and method for making Humidity sensor and method for making

1995-03-31

1996-08-20

Lusignan, Michael

Measuring and testing

Gas analysis

Moisture content or vapor pressure

427512, 427518, 427519, 427520, B05D 512

Patent

active

055468020

ABSTRACT:
A humidity sensor includes a pair of opposed electrodes disposed on an insulating substrate and defining a gap therebetween and a humidity sensitive thin film covering the gap. This thin film is formed by coating a polymer of specific structure having an ethylenically unsaturated reactive group and exposing the coating to ultraviolet radiation for crosslinking. The sensor is fully water resistant and produces accurate outputs over a wide humidity range and thus can detect and determine moisture in the surrounding atmosphere.

REFERENCES:
patent: 3689468 (1972-09-01), Cenci et al.
patent: 3703696 (1972-11-01), Browall et al.
patent: 4322331 (1982-03-01), Shay
patent: 4330718 (1982-05-01), Kinomoto et al.

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