Drying balance with evaluation circuit for determining the end of the drying
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United States of America Patent
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Dec 26, 1989
Grant Date -
N/A
app pub date -
Jan 24, 1989
filing date -
Jan 25, 1988
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A drying balance is disclosed with a means (11) for supplying energy for the drying of material to be weighed located on the balance scale (6,16) and with a digital evaluating unit (23,24,25) for calculating the moisture content from the measured weight loss of the specimen and for determining the end point of the drying in which balance the digital evaluating unit (23,24,25) calculates the inflection point from the chronological course of the weight loss and derives the criterion for determining the final point therefrom. The criterion for the final point consists in that the slope of the drying curve drops below a certain value which is derived from the coordinates or the slope of the drying curve at the inflection point.
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