Piezoelectric moisture analyzers

Measuring and testing – Gas analysis – Moisture content or vapor pressure

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G01N 3100

Patent

active

041633849

ABSTRACT:
The sensitivity to moisture of polystyrene sulfonate coatings on piezoelectric crystals in moisture detectors is unstable in the presence of acid gases. The sensitivity of these coated crystals can be stabilized by contacting the polymer with an acid gas.

REFERENCES:
patent: 3260104 (1966-07-01), King
patent: 3266291 (1966-08-01), King
patent: 3427864 (1969-02-01), King
patent: 3677066 (1972-07-01), King et al.

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