Measurement of position deviation and eccentricity for μ-disc-type inductive micro-motor

Chih Che Lin, Nan Chyuan Tsai

研究成果: Article同行評審

3 引文 斯高帕斯(Scopus)

摘要

Abstract An innovative capacitive gap-sensing readout circuit to replace traditional gap sensor is designed to measure the motion of the levitated micro-disc embedded in an inductive micro-motor. Twelve equivalent capacitor pairs are constructed to detect the position deviation of the disc. As the position deviation of disc occurs, the capacitances of the corresponding capacitor pairs are altered. In addition, by applying the effects of inertial force and centrifugal force, an innovative non-contact measurement method to quantify the unbalance degree of the micro-disc, i.e., eccentricity, is also proposed. By commercial computer simulations and realistic experiments undertaken, the performance of the proposed capacitive gap-sensing readout circuit has been successfully verified. The mean of output voltage of gap-sensing readout circuit is about 327 mV under the position deviation of the disc being 8 μm. Moreover, the unbalance degree of the disc is approximately proportional to the square of the position deviation of the disc.

原文English
文章編號3850
頁(從 - 到)296-312
頁數17
期刊Mechanical Systems and Signal Processing
64-65
DOIs
出版狀態Published - 2015 12月 1

All Science Journal Classification (ASJC) codes

  • 控制與系統工程
  • 訊號處理
  • 土木與結構工程
  • 航空工程
  • 機械工業
  • 電腦科學應用

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