Variable signal generator for galvanometer exhibiting hysteresis

Details Variable signal generator for galvanometer exhibiting hysteresis Variable signal generator for galvanometer exhibiting hysteresis

1978-09-08

1981-08-25

Karlsen, Ernest F.

Electricity: measuring and testing

Measuring, testing, or sensing electricity, per se

Inertia control, instrument damping and vibration damping

318134, 324 97, 350 66, 350486, G01R 114, H02K 3318, G02B 2717

Patent

active

042862124

ABSTRACT:
Switch means having a predetermined number of switch positions normally applies any selected one of the same predetermined number of separate control signals to a galvanometer in accordance with the switch position to which the switch means is operated. However, in response to each operation of the switch means between switch positions, a reference signal is applied to the galvanometer for a given time. This overcomes the degrading effect of hysteresis on galvanometer accuracy.

REFERENCES:
patent: 2441984 (1948-05-01), Armstrong
patent: 2959722 (1960-11-01), Gilinson, Jr.
patent: 3482163 (1969-12-01), Peek et al.
patent: 3509458 (1970-04-01), Girard
patent: 3873179 (1975-03-01), Burke
"Preliminary Instruction . . . ", Model LA 50-03B & LA 50-03BM, Lamda Eleonics Corp., Huntington, N.Y.

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