Magnetostrictive actuator with feedback compensation

Details Magnetostrictive actuator with feedback compensation Magnetostrictive actuator with feedback compensation

1984-12-04

1986-04-29

Duggan, Donovan F.

Electricity: motive power systems

Magnetostrictive motor

310 26, H02N 200

Patent

active

045859787

ABSTRACT:
A linear magnetostrictive actuator with feedback compensation including a force train that has at least one magnetostrictive element, an excitation component disposed on or within the actuator, a feedback apparatus whose output signal is proportional to the magnetic induction within the magnetostrictive element, and actuator control circuitry for providing the difference signal resultant between the feedback output signal and the external signal, such that positional displacement error is compensated by closed loop operation of the actuator.

REFERENCES:
patent: 3015063 (1961-12-01), Ownby
patent: 3429155 (1969-02-01), Hines
patent: 3544867 (1970-12-01), Green
patent: 3857081 (1974-12-01), Gebelein, Jr.

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