Weighing instrument having adaptive breakpoints

Details Weighing instrument having adaptive breakpoints Weighing instrument having adaptive breakpoints

1987-12-30

1989-07-18

Gruber, Felix D.

Boots, shoes, and leggings

177 2515, G01G 19413, G06F 1520

Patent

active

048499188

ABSTRACT:
A weighing instrument is provided with two sets of breakpoints; "generic breakpoints" which fall at the midpoint of successive display intervals, and "postal breakpoints" which fall at or near one of the two successive display intervals. Under "normal" circumstances, the postal breakpoints are in place and the instrument is used as a "weight classifier". When it is sensed that the "weighing history" of the instrument is such that weighing errors due to "creep" will affect the accuracy of the instrument, and will be augmented by the bias inherent in the use of postal breakpoints, the generic breakprints are instituted. An example of a weighing history of a nature that the generic breakpoints should be implemented is the application of a "large" weight (such as 75% of full range) to the instrument for a "long" time (such as in excess of 30 seconds). The postal breakpoints are reimplemented in the instrument upon a return to substantially zero weight on the instrument.
Method and apparatus are disclosed.

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Cox et al: Machine Round-Off of Numbers, IBM Technical Disclosure Bulletin. vol. 7 No. 12, May 1965 pp. 1178/1179.

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