Journal
JAPANESE JOURNAL OF APPLIED PHYSICS
Volume 47, Issue 7, Pages 5809-5811Publisher
JAPAN SOCIETY APPLIED PHYSICS
DOI: 10.1143/JJAP.47.5809
Keywords
six-wire suspension actuator; magnetic circuit; optical pickup; finite element method; super-multi recorder
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A lens actuator is an important mechanical-electrical component in optical pickup. For the high-sensitivity actuator used in a super-multi recorder, a novel magnetic circuit is proposed in this paper. This magnetic circuit consists of six thick permanent magnets with regulated placement, two thin permanent magnets, a base yoke, and an upper yoke. Experimental results verified the feasibility of the designed magnetic circuit.
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