Multi-point cell type weighing machines

Details Multi-point cell type weighing machines Multi-point cell type weighing machines

1997-09-03

2000-01-11

Gibson, Randy W.

Weighing scales

Computer

Electrical

177184, 177185, 177199, 702101, 43 113, G01G 1922, G01G 2110, G01G 2310, G01G 1900

Patent

active

060138793

ABSTRACT:
A multi-point cell type weighing machine has a plural number of scale cells set on a floor to support a table and to output weight signals indicative of weights measured thereby of a target object placed on the table. One or more floor vibration detecting cells are set on the same floor and output floor vibration detection signals indicative of the vibrations of the floor. The weight signals are corrected on the basis of vibration components of the floor vibration detection signals. A standard weight is placed at a larger plural number of places on the table than there are scale cells and output sensitivity ratios among the scale cells are calculated from outputted values from the scale cells, and the weight signals are further corrected on the basis of the output sensitivity ratios. These weight signals are added together and the weight of the target object is obtained from the added signal. A plurality of floor vibration detecting cells may be set on the floor, each near different one of the scale cells, or they may be set anywhere on the floor and a mode of floor vibrations may calculated from their outputs. A single floor vibration detecting cell may be set between the scale cells. The table is supported by the scale cells through elastic pieces such that only vertical forces are communicated to the scale cells.

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