Calibration of the DOE lens array based multipoint diffraction strain sensor

Hui Zhu; Anand Asundi

doi:10.1117/12.928023

13 September 2012 Calibration of the DOE lens array based multipoint diffraction strain sensor

Hui Zhu, Anand Asundi

Proceedings Volume 8494, Interferometry XVI: Applications; 849405 (2012) https://doi.org/10.1117/12.928023
Event: SPIE Optical Engineering + Applications, 2012, San Diego, California, United States

Abstract

Multipoint Diffraction Strain Sensor (MDSS) is a non-contact whole field strain sensing system. DOE-based lens arrays are designed and used to replace the typical micro-lens array in our MDSS system. These DOE patterns are displayed on the liquid crystal spatial light modulator. So with different focal length, tunable strain sensitivity is achieved. Calibrations are performed to test the measurement accuracy and precision of the system.

Citation Download Citation

Hui Zhu and Anand Asundi "Calibration of the DOE lens array based multipoint diffraction strain sensor", Proc. SPIE 8494, Interferometry XVI: Applications, 849405 (13 September 2012); https://doi.org/10.1117/12.928023

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