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Concentrated anisotropic magnetization for high sensitivity of optical pickup actuator

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6 Author(s)
In-Ho Choi ; Digital Media Res. Lab., LG Electron. Inc., Seoul, South Korea ; Seong-Pyo Hong ; Won-Eull Chung ; Young-Joong Kim
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To improve the driving sensitivity of an optical pickup actuator for high density and high speed, we present a new magnetizing method-concentrated anisotropic magnetization for Nd-Fe-B sintered magnets. The electromagnetic field analysis applying 3-D FEM was performed and several samples were actually tested. From comparing simulated data with experimental results, we verified the accuracy of the simulation and the superiority of the presented method

Published in:

Magnetics, IEEE Transactions on  (Volume:35 ,  Issue: 3 )

Date of Publication:

May 1999

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