韩国烟熏妆专利名称：Capacitance die displacement pick-up 发明人：竹内 勇子
申请号：JP特願平1-208582
圣诞歌曲申请日：19890811开合
公开号：JP特公平7-89066B2
中南民族大学怎么样公开日：
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专利内容由知识产权出版社提供
摘要：PURPOSE:To obtain a highly accurate displacement detector by impressing an alternating current voltage which is shifted in pha and, analyzing the pha of a capacitor coupled signal. CONSTITUTION:A stator 10 has transmission electrodes 14 arranged with equal distance from each other and receiving electrodes 16 arranged in the shape of a belt to the electrodes 14, on the rear surface thereof. A rotor 12 has coupling electrodes 18 arranged astride the electrodes 14, 16 and opposite to the electrodes 14, 16. The rotor 12 is rotatable with the stator 10. An alternating current voltage source 20 supplies an alternating current voltage quentially to the electrodes 14 with the pha shifted a predetermined degree. The displacement detector is provided with the stator 10, rotor 12 and voltage source 20. An alternating current voltage is introduced to electrodes 14 provided on the surface of the stator 10 by lead wires 24. The lead wires 24 are so provided that the capacity formed between one of a pair of the lead wires 24 for introducing an alternating current voltage of an opposite pha and the electrode 16 becomes approximately equal. The relative displacement amount of the stator 10 and rotor 12 can be detected by analyzing the pha of the capacitive coupled signal of the electrodes 14, 16.
申请人：株式会社ミツトヨ
words地址：東京都港区芝5丁目31番19号国籍：JP
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