Actuator having asymmetric magnetic flux strength

Details Actuator having asymmetric magnetic flux strength Actuator having asymmetric magnetic flux strength

1997-11-24

1999-08-31

Heinz, A. J.

Dynamic magnetic information storage or retrieval

Record transport with head stationary during transducing

Drum record

G11B 555

Patent

active

059461667

ABSTRACT:
An actuator carriage assembly for carrying read/write heads into engagement with a storage medium while eliminating resonance of the actuator carriage assembly is provided. The actuator carriage assembly comprises a carriage having read/write heads, the heads being mounted on the end of the carriage, and a magnetic circuit for driving the carriage and heads into and out of engagement with the storage medium. The magnetic circuit comprises a coil mounted on the carriage, a first magnet located on a first side of the actuator carriage assembly and a second magnet located on a second side of the actuator carriage assembly. The magnets or the sides of the actuator carriage assembly are biased so that the magnetic flux from the first side is stronger than that from the second side. In an actuator carriage assembly for carrying read/write heads into engagement with a storage medium, a method for eliminating resonance in the actuator carriage assembly is also provided.

REFERENCES:
patent: 4908816 (1990-03-01), Champagne

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