Actuator magnetic circuit

Details Actuator magnetic circuit Actuator magnetic circuit

1989-05-08

1990-09-11

Heinz, A. J.

Dynamic magnetic information storage or retrieval

Record transport with head stationary during transducing

Drum record

310 13, G11B 2108

Patent

active

049567357

ABSTRACT:
A magnetic circuit structure for use in an actuator, where the actuator has a displaceable assembly and a coil attached to such assembly, is shown to include flux conductors having generally parallel first and second poles defining gaps therebetween and an integrally formed base joining one end of the first and second poles so that the conductor defines a continuous flux path, and magnets attached to each of the first poles in the gaps so that flux from the magnets is directed across the gaps, wherein a portion of the coil passes through said gap, so that when a current is passed through the coil, the assembly moves.

REFERENCES:
patent: 3505544 (1970-04-01), Helms
patent: 4414594 (1983-11-01), Farmer
patent: 4607913 (1986-08-01), Jansen
Yamamoto, T., "Development of High Performance Head Positioner for an Optical Disk Storage System", S.P.I.E., vol. 695, Optical Mass Data Storage (1986), pp. 153-159.

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