High performance three-axis actuator in super-multi optical pickup with low crosstalk force

This paper presents a novel method to reduce the crosstalk force in main movement, and improve the sensitivity of the three-axis actuator in super-multi optical pickup. A novel magnetic circuit adopting symmetric driving coils and permanent magnets with special placement is developed. Then, the magn...

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Bibliographic Details
Published in:IEEE transactions on consumer electronics 2008-11, Vol.54 (4), p.1743-1749
Main Authors: Zhang, Buqing, Ma, Jianshe, Pan, Longfa, Cheng, Xuemin, Tang, Yi
Format: Article
Language:English
Subjects:
Actuators
Circuit testing
Coils
Crosstalk
Crosstalk force
Electronics
Flux
Lenses
Magnetic circuits
Optical crosstalk
Optical pickups
Optical sensors
Optimization methods
Permanent magnets
Super-multi
Taguchi method
Three-axis actuator
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Summary:This paper presents a novel method to reduce the crosstalk force in main movement, and improve the sensitivity of the three-axis actuator in super-multi optical pickup. A novel magnetic circuit adopting symmetric driving coils and permanent magnets with special placement is developed. Then, the magnetic circuit is optimized with the help of Taguchi method, so as to dramatically improve the flux density and reduce the nonlinearity. Some actuator samples with the optimized parameters are fabricated and tested, and the results show the good performance of the proposed actuator.
ISSN:0098-3063
1558-4127
DOI:10.1109/TCE.2008.4711229