Plate array for moisture sensor with reduced sensitivity to load

Details Plate array for moisture sensor with reduced sensitivity to load Plate array for moisture sensor with reduced sensitivity to load

1996-02-12

1997-09-30

Cuchlinski, Jr., William A.

Measuring and testing

Moisture content or absorption characteristic of material

324688, G01N 2702

Patent

active

056716338

ABSTRACT:
A plate array for moisture sensors has a transmitter electrode and a detector electrode interposed between portions of a phase electrode. The transmitter and phase electrodes are driven with alternating current signals having a one hundred and eighty degree phase difference so as to induce a signal at the detector electrode relating to a moisture content of a material in the electrical fields which has a reduced sensitivity to electrically loading the material, such as from contact with a hand or steel roller.

REFERENCES:
patent: 3515987 (1970-06-01), Zurbrick et al.
patent: 3959723 (1976-05-01), Wagner
patent: 4563635 (1986-01-01), Wagner et al.
patent: 4845421 (1989-07-01), Howarth et al.

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