Three degree-of-freedom optical orientation measurement

  • Liang Yan*
  • , I. Ming Chen
  • , Chee Kian Lim
  • , Guilin Yang
  • , Kok Meng Lee
  • *Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingChapterpeer-review

Abstract

Orientation measurement is an important topic for spherical actuators. The purpose of this study is to propose a high-precision non-contact displacement measurement method for 3-DOF rotational motions. The operating principle of the measurement method is based on the non-contact laser detection. It has several advantages compared with other orientation measurement methods. The non-contact property avoids friction and additional mass/inertia moment exerted on the moving part that may significantly reduce the system working efficiency. Compared with other non-contact measurement methods, it can achieve a high-precision measurement result, and its performance is not affected by environmental field. The algorithm for three rotation angles has been derived. Two experimental apparatus have been developed to conduct measurements, and to evaluate the proposed orientation measurement method.

Original languageEnglish
Title of host publicationMechanisms and Machine Science
PublisherSpringer Netherlands
Pages133-151
Number of pages19
DOIs
StatePublished - 2011

Publication series

NameMechanisms and Machine Science
Volume4
ISSN (Print)2211-0984
ISSN (Electronic)2211-0992

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