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http://dx.doi.org/10.5050/KSNVN.2004.14.11.1147

Optimal Design of the Optical Pickup Actuator Coil  

Woo Chul, Kim
Jae Eun, Kim
Publication Information
Transactions of the Korean Society for Noise and Vibration Engineering / v.14, no.11, 2004 , pp. 1147-1152 More about this Journal
Abstract
The objective of this work is to develop a new design method to find optimal coils, especially the optimal coil configuration of an optical pickup actuator. In designing actuator coils, the developed Lorenz force in the coils along the desired direction should be made as large as possible while forces and torques in other directions should be made as small as possible. The design methodology we are developing is a systematic approach that can generate optimal coil configurations for given permanent magnet configurations. To consider the best coil configuration among all feasible coil configurations, we formulate the design problem as a topology optimization of a coil. The present formulation for coil design is noble in the sense that the existing topology optimization is mainly concerned with the design of yokes and permanent magnets and that the optimization of actuator coils is so far limited within shape or size optimization. Though the present design methodology applies to any problem, the specific design example considered is the design of fine-pattern tracking and focusing coils.
Keywords
Optical Pickup Actuator; Coil; Lorenz Force; Topology Optimization;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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