Accuracy of sampling moiré method

Yoshiharu Morimoto; Motoharu Fujigaki

doi:10.1117/12.839206

25 August 2009 Accuracy of sampling moiré method

Yoshiharu Morimoto, Motoharu Fujigaki

Proceedings Volume 7375, ICEM 2008: International Conference on Experimental Mechanics 2008; 737526 (2009) https://doi.org/10.1117/12.839206
Event: International Conference on Experimental Mechanics 2008 and Seventh Asian Conference on Experimental Mechanics, 2008, Nanjing, China

Abstract

Recently the authors developed sampling moiré method which analyzes the phase distribution of one image of a moiré fringe pattern. The captured image is analyzed by performing easy image processing, i.e., thinning-out and linear interpolation, to obtain the multiple phase-shifted moiré patterns. Then, the phase distribution of the moiré pattern can be calculated using phase-shifting technique. The accuracy of the phase analysis is high because the phase is analyzed with a phase-shifting method. The accuracy is checked using simulation and experiment by changing several factors. An application of the sampling moiré method applied to deflection measurement of a metal cantilever beam is performed. The average error of the deflection measurement is less than 1/500 of the grating pitch.

Citation Download Citation

Yoshiharu Morimoto and Motoharu Fujigaki "Accuracy of sampling moiré method", Proc. SPIE 7375, ICEM 2008: International Conference on Experimental Mechanics 2008, 737526 (25 August 2009); https://doi.org/10.1117/12.839206

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available