SELF-SENSING MAGNETIC FORCE CONTROL BY COMPOSITE OF GIANT MAGNETOSTRICTIVE AND PIEZOELECTRIC MATERIALS
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概要
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This paper describes a sensor-less magnetic force control method using a magnetic force control device composed of a giant magnetostrictive rod, a permanent magnet and a piezoelectric actuator, with which the magnetic force can be controlled by adjusting the input voltage to piezoelectric actuator. If the secondary voltage induced by the displacement of the moving yoke can be separated from the control input voltage, the composite device can also be used as a sensor in magnetic force control. In this study, a RC bridge circuit for the separation of the secondary sensor voltage from the control input voltage was proposed and examined in the experiment. The results show that composite device can be used as a self-sensing actuator in magnetic force control if the RC circuit is properly adjusted.
- 一般社団法人日本機械学会の論文
著者
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QIU Jinhao
Institute of Fluid Science, TOHOKU University
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TANI Junji
Institute of Fluid Science, Tohoku University
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Qiu Jinhao
Institute Of Fluid Science Tohoku University
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Tani Junji
Institute Of Fluid Science Tohoku University
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Ueno Toshiyuki
Institute Of Fluid Science Tohoku University
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