Electromagnetically compensating weighing or force-measuring dev

Details Electromagnetically compensating weighing or force-measuring dev Electromagnetically compensating weighing or force-measuring dev

1977-12-13

1979-04-24

Miller, Jr., George H.

Weighing scales

Self-positioning

Repositioning in response to deflection under load

G01G 700

Patent

active

041507304

ABSTRACT:
An electromagnetically compensating force-measuring or weighing device includes a working coil disposed in the air gap of a fixed magnetic circuit which includes a permanent magnet. The working coil is subject to the influence of the load to be measured. An indicator responsive to the position of the working coil, has its output fed to a control amplifier, the working coil being fed the output signal from the control amplifier whereby it is brought to the zero position. An additional coil is connected electrically in series with the working coil, the magnetic field produced by the additional coil being determined by a measurement sensor. The output signal of the measurement sensor is a measure of the load to be measured.

REFERENCES:
patent: 3092197 (1963-06-01), Ecker
patent: 3688854 (1972-09-01), Strobel
patent: 3786678 (1974-01-01), Kunz
patent: 3968850 (1976-07-01), Gaskill
patent: 4034819 (1977-07-01), Akers et al.
patent: 4062417 (1977-12-01), Kunz

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