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利用靜磁力與勞侖茲力驅動雙軸循序掃描面鏡
Thesis

利用靜磁力與勞侖茲力驅動雙軸循序掃描面鏡

湯宗霖
Masters, 國立清華大學, 動力機械工程學系
2006

Abstract

靜磁力 勞侖茲力 感應電流 掃描面鏡 Magnetostatic force Lorentz force Eddy current Scanning mirror
This thesis reports novel coil-less micro scanning mirrors driven by the magnetostatic force resulted from magnetic interaction as well as the Lorentz force induced by eddy current. This design eliminates complicated coil routing and insulation layer deposition, and simplifies fabrication allowing easy integration with micromachining and CMOS processes. Bulk micromachined 1-axis and 2-axis scanning mirrors are demonstrated, displaying 1D and 2D scanning patterns. The 2D scanning patterns are easily tuned by varying the combination of driving frequencies. The results show that the diamagnetic (Cu) mirror is mainly driven by the eddy current induced Lorentz force, while the ferromagnetic (Ni) mirror is mainly driven by the magnetostatic force.

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