Hysteresis-compensated weighing apparatus and method
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United States of America Patent
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May 3, 1994
Issued Date -
N/A
app pub date -
Dec 9, 1992
filing date -
May 16, 1990
priority date (Note) -
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Abstract
A digital scale is compensated for hysteresis by characterizing an envelope pattern of increasing and decreasing linearity attributes thereof defining the limits of hysteresis error. Polynomial expressions define this envelope pattern and a correction procedure is developed which is based upon offsets from the envelope pattern as well as the merging characteristics of deviations evidenced from complex loading histories. The latter historical data are used to identify loading progression transitions necessary for the generation of correction values.
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