A multipoint diffraction strain sensor using micro-lens array: review on variable sensitivity

J. Wang; Anand K. Asundi

doi:10.1117/12.814564

3 October 2008 A multipoint diffraction strain sensor using micro-lens array: review on variable sensitivity

J. Wang, Anand K. Asundi

Proceedings Volume 7155, Ninth International Symposium on Laser Metrology; 71551R (2008) https://doi.org/10.1117/12.814564
Event: Ninth International Symposium on Laser Metrology, 2008, Singapore, Singapore

Abstract

A multipoint diffraction strain sensor (MDSS) in moire interferometer was developed earlier as direct approach for measuring strain of a macro-sized object. Recently a MDSS based on a micro-moire interferometer was proposed for measuring strain for a micro-sized object in wholefield with unique features, one of which is variable sensitivity and measurement range. The technique is now extended to measure both tilt and non-uniform strain of a material.

Citation Download Citation

J. Wang and Anand K. Asundi "A multipoint diffraction strain sensor using micro-lens array: review on variable sensitivity", Proc. SPIE 7155, Ninth International Symposium on Laser Metrology, 71551R (3 October 2008); https://doi.org/10.1117/12.814564

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