Moisture content detector
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United States of America Patent
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-
Aug 30, 1988
Grant Date -
N/A
app pub date -
Jun 2, 1986
filing date -
Jun 2, 1986
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An improved moisture detection apparatus for use in detecting moisture in discrete objects brought seriatim to a sensing zone. The apparatus includes structure for transmitting a beam of microwave energy having a planar wavefront through a portion of the object brought to the sensing zone and utilizing signal processing structure for selectively providing peak detection or averaging integration of the microwave beam signal in providing desired accuracy in the determination of the moisture content of such objects which may vary in uniformity of the moisture content thereof. Microwave absorber material is provided in the signal path between the microwave horns and the object. The invention includes structure for accurately aligning the horns notwithstanding the use of an opaque conveyor for bringing the objects to the sensing zone interposed between the horns.
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