Differentially wound electromagnetic actuator

Details Differentially wound electromagnetic actuator Differentially wound electromagnetic actuator

1987-10-28

1989-05-16

Salce, Patrick R.

Electrical generator or motor structure

Dynamoelectric

Linear

310 905, 310154, 350611, H02K 4100, H02K 106

Patent

active

048312916

ABSTRACT:
An electromagnetic actuator used with a segmented optical element includes a central pole piece that is affixed at one end to the segment, and is movable along a displacement axis. Oppositely wound, longitudinally displaced electical coils on the pole piece are encompassed by an outer magnet. Pole piece displacement is the result of the net axial force generated from the current flowing through the coils.

REFERENCES:
patent: 4227100 (1980-10-01), Ezekiel et al.
patent: 4318038 (1982-03-01), Munehiro
patent: 4439700 (1984-03-01), Menzel et al.
patent: 4494022 (1985-01-01), Kawara et al.
patent: 4631430 (1986-12-01), Aubrecht
patent: 4638193 (1987-01-01), Jones
patent: 4669013 (1987-05-01), Scranton et al.
patent: 4704553 (1987-11-01), Resicow

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