Hysteresis-compensated weighing apparatus and method

Details Hysteresis-compensated weighing apparatus and method Hysteresis-compensated weighing apparatus and method

1992-12-09

1994-05-03

Miller, Jr., George H.

Weighing scales

Computer

Electrical

177 50, 364567, G01G 1940, G01G 1952

Patent

active

053089316

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.

REFERENCES:
patent: 3709310 (1973-01-01), Cooke et al
patent: 4281731 (1981-08-01), Sodler et al.
patent: 4535854 (1985-08-01), Gard et al.
patent: 4691290 (1987-09-01), Griffen
patent: 4849918 (1989-07-01), Feinland

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