Gap regulation for suspended rotating disk used for microgyroscopes

Nan Chyuan Tsai, Bing Hong Liou, Chih Che Lin

研究成果: Article同行評審

摘要

An innovative magnetic module that is concurrently capable of performing as an actuator and a sensor is proposed and analyzed. The magnetic module is basically similar to a microscale linear variable differential transformer (LVDT), which is employed to actively adjust the height of a rotating seismic disk used in a gyroscope so that the pitch rate induced by Coriolis effect, due to exerted angular excitation, can be accurately measured. On one hand, the micromagnetic module acts like an actuator for height regulation on the seismic proof mass by applying appropriate electric current to the primary winding of the LVDT unit. On the other hand, the secondary winding pair of the LVDT acts like a sensor that can detect the gap change between the seismic rotating disk and the micromagnetic LVDT module, and the rotation speed (i.e., frequency) by the induced current.

原文English
文章編號043045
期刊Journal of Micro/Nanolithography, MEMS, and MOEMS
8
發行號4
DOIs
出版狀態Published - 2009

All Science Journal Classification (ASJC) codes

  • 電子、光磁材料
  • 原子與分子物理與光學
  • 凝聚態物理學
  • 機械工業
  • 電氣與電子工程

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