Abstract
A laser beam illuminated the grating attached on the surface of specimen. The frequency of the grating was 900 lines/mm. The shift of diffracted beam spots from the grating was measured with two PCD linear image sensors connected to a personal computer in order to determine the normal strain and out-of-plane rotation angle caused by an applied load. The measured light intensity profile was approximated by a Gaussian function and the location of the intensity profile was determined as the main axis of the function.
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Schedule a callMore From: JSME international journal. Ser. A, Mechanics and material engineering
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