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Application of a novel capacitive sensor in precise positioning systems

  • Tao Chen*
  • , Liguo Chen
  • , Mingqiang Pan
  • , Lining Sun
  • *Corresponding author for this work
  • Soochow University
  • Chinese Academy of Sciences

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

This paper presents a comb-finger capacitive displacement sensor used in nano-positioning system. The displacement sensor is designed to develop an integrated implementation platform and to achieve its closed-loop control. In the design, offset constant-tooth, combinations with S-type beams and flexible cantilevers have been adopted to enhance the position range and structure performance. Surface and bulk micromachining technology is employed to fabricate the sensor from a single crystal silicon wafer. Through testing of the nano-positioning stage, the capability of the sensor has been obtained. The results show that this method can achieve a detect range of 10m, with resolution of 5nm.

Original languageEnglish
Title of host publicationProceedings of the 2011 6th IEEE Conference on Industrial Electronics and Applications, ICIEA 2011
Pages1712-1715
Number of pages4
DOIs
StatePublished - 2011
Event2011 6th IEEE Conference on Industrial Electronics and Applications, ICIEA 2011 - Beijing, China
Duration: 21 Jun 201123 Jun 2011

Publication series

NameProceedings of the 2011 6th IEEE Conference on Industrial Electronics and Applications, ICIEA 2011

Conference

Conference2011 6th IEEE Conference on Industrial Electronics and Applications, ICIEA 2011
Country/TerritoryChina
CityBeijing
Period21/06/1123/06/11

Keywords

  • capacitive displacement sensor
  • comb-finger capacitance
  • microelectromechanical systems (MEMS)
  • nano-positioning stage

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