Low-Frequency Compensation of Piezoelectric Accelerometers for Motion Control Systems

Yu Sheng Lu*, Chun Wei Lu

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

This paper describes how piezoelectric accelerometers can be applied to motion control systems for performance enhancements. Piezoelectric accelerometers are known for their wide frequency ranges to sense dynamic acceleration. However, they are unable to measure static and quasi-static acceleration. Since positional sensors generally exist in motion control systems, this paper presents two acceleration observers that fuse piezoelectric accelerometers and positional sensors and are able to achieve high-quality observation of acceleration, including static and quasi-static components. The proposed observers are applied to a robotic manipulator, and experimental results confirm feasibility and effectiveness of the proposed acceleration observers.

Original languageEnglish
Pages (from-to)2221-2234
Number of pages14
JournalJournal of Electrical Engineering and Technology
Volume16
Issue number4
DOIs
Publication statusAccepted/In press - 2021

Keywords

  • Acceleration observer
  • Capacitive accelerometer
  • Motion control system
  • Piezoelectric accelerometer
  • Robotic manipulator

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

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