Weigh scale

Details Weigh scale Weigh scale

1982-03-01

1985-01-08

Miller, Jr., George H.

Weighing scales

Self-positioning

Repositioning in response to deflection under load

177 50, 177210FP, G01G 700, G01G 1952, G01G 314

Patent

active

044922817

ABSTRACT:
The specification discloses an improved weigh scale of the dual beam type having large and small flow buckets adapted to receive a flow of fluid therein, and an encoder connected to a ball screw having a poise weigh driven by a drive motor for keeping the scale continually balanced while a fluid is being introduced into one of said flow buckets, and having a power supply circuit, a pulse encoder circuit, and a poise control circuit for operation thereof, the improvement including an improved poise control circuit having low gain with high integration for use during the run mode, but being switchable to a circuit having high gain and derivative action during the calibration mode.

REFERENCES:
patent: 3738438 (1973-06-01), Ellner

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