A phase compensation technique of sampling moiré method for accurate single-shot phase analysis

Shien Ri, Takashi Muramatsu, Masumi Saka

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Recently, a technique for fast and accurate phase analysis called sampling moiré method has been developed for measurement of small-displacement distribution. In this study, a distribution of phase error caused by linear interpolation in case with mismatch between the sampling pitch and the grating pitch is theoretically analyzed. Moreover, a technique for effective phase compensation is proposed to reduce the periodic phase error. The performance of our compensation method is validated by a computer simulation. Phase analysis can be performed more accurately even in the case that the sampling pitch does not match to the grating pitch strictly.

Original languageEnglish
Title of host publicationAdvances in Experimental Mechanics VIII
Pages243-248
Number of pages6
DOIs
Publication statusPublished - 2011
Event8th International Conference on Advances in Experimental Mechanics: Integrating Simulation and Experimentation for Validation - Edinburgh, United Kingdom
Duration: 2011 Sep 72011 Sep 9

Publication series

NameApplied Mechanics and Materials
Volume70
ISSN (Print)1660-9336
ISSN (Electronic)1662-7482

Other

Other8th International Conference on Advances in Experimental Mechanics: Integrating Simulation and Experimentation for Validation
CountryUnited Kingdom
CityEdinburgh
Period11/9/711/9/9

Keywords

  • Down-sampling
  • Phase compensation
  • Sampling pitch
  • Spatial phase shifting method

ASJC Scopus subject areas

  • Engineering(all)

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