Moisture sensor

Details Moisture sensor Moisture sensor

1985-09-04

1987-09-29

Richman, Barry S.

Chemical apparatus and process disinfecting, deodorizing, preser

Analyzer, structured indicator, or manipulative laboratory...

Means for analyzing gas sample

73 29, 733365, 338 35, 422 98, G01N 2712

Patent

active

046967966

ABSTRACT:
A moisture sensor having the moisture sensitive film comprising an inner layer in the form of a plasma-polymerized high polymer layer of a hydrophobic organic compound and a surface layer in the form of a plasma-polymerized high polymer layer having incorporated therein a hydrophilic groups of an ammonium salt type, and a process for producing same.

REFERENCES:
patent: 2728831 (1955-12-01), Pope
patent: 3559456 (1971-02-01), Lomker
patent: 4386336 (1983-05-01), Kinomoto et al.
patent: 4442422 (1984-04-01), Murata et al.
patent: 4520341 (1985-05-01), Miyoshi et al.
patent: 4528543 (1985-07-01), Miyoshi et al.
patent: 4562725 (1986-01-01), Oka et al.
King, Jr., Research/Development, Apr. & May 1969, "Using Quartz Crystals as Sorption Detectors, Parts 1 & 2," pp. 28-34 in Apr. issue, pp. 28-33 in May issue.
Hijikigawa et al., Sensors & Actuators, 4(1983), 307-315.

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