Balance with electromagnetic compensation

Details Balance with electromagnetic compensation Balance with electromagnetic compensation

1978-10-19

1980-01-22

Hartary, Joseph W.

Weighing scales

Self-positioning

Electrical current generating or modifying

177212, G01G 702

Patent

active

041845560

ABSTRACT:
An electromagnetically compensated balance whose magnetic circuit comprises a permanent magnet and a pole shoe associated with each of the two poles of the magnet, one of the pole shoes bounding an air gap in the circuit, includes an induction coil mounted for movement in the air gap, a load carrier movable relative to the circuit under the weight of a carried load, and a force transmitting train connecting the coil to the load carrier for balancing the force exerted by the carried load on the load carrier by a force generated by current flowing in the coil. The force transmitting train includes a force transmitting member fastened to the coil. At least a major portion of the force transmitting member is confined in a space defined between the air gap and the other pole shoe.

REFERENCES:
patent: 3688854 (1972-09-01), Strobel
patent: 4148370 (1979-04-01), Luchinger

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