Rotary actuator for magnetic recording

Details Rotary actuator for magnetic recording Rotary actuator for magnetic recording

1991-07-16

1992-05-12

Stephan, Steven L.

Electrical generator or motor structure

Dynamoelectric

Linear

310 12, 369219, H02K 4100

Patent

active

051130998

ABSTRACT:
An improved actuator support structure includes a centerpole member having an opening or void disposed at a middle region. The opening improves the rise time of the actuator without diminishing the flux density within the centerpole member. Additional openings are disposed in the centerpole member along opposite sides of the first opening. These additional openings are calculated to optimize the flux density within the centerpole member by slightly restricting the area of the centerpole where the magnetic flux flows.

REFERENCES:
patent: 3296472 (1967-01-01), Fisher
patent: 4652779 (1987-03-01), Wilcox
patent: 4864170 (1989-09-01), Eguchi
patent: 5057723 (1991-10-01), Umehara et al.

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