Moisture sensor

Details Moisture sensor Moisture sensor

1990-03-23

1991-08-06

Williams, Hezron E.

Measuring and testing

Gas analysis

Moisture content or vapor pressure

73 2905, 338 34, G01W 100

Patent

active

050367048

ABSTRACT:
A moisture sensor (100) is provided that utilizes a sulfonated fluorocarbon film (10) having a thickness of less than about one micron and capable of providing accurate measurements of humidity and extremely fast response to change in humidity. A preferred embodiment of an electrical system (150) is disclosed for use with sensor (100) and a sulfonated tetrafluoroethylene perfluoroether copolymer form of the film is especially preferred.

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NASA Tech. Brief vol. 8, No. 2 Item 139, Nov. 1984--Trace Level Solid Polymer Electrolyte Hygrometic.
NASA Tech. Brief vol. 3, No. 1, Item 52, Jun. 1978, Long Lasting Solid-Polymer Electrolytic Hygrometer.

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