Plate array for moisture sensor with reduced sensitivity to loading effects
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United States of America Patent
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Sep 30, 1997
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N/A
app pub date -
Feb 12, 1996
filing date -
Feb 12, 1996
priority date (Note) -
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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.
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