Strain Measurement Using High-Frequency Diffraction Grating
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概要
- 論文の詳細を見る
A new method was proposed for measuring normal strain using a high-frequency diffraction grating. A laser beam illuminated the grating attached on the surface of a 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. This method was applied to measurement of elastic normal strain of a cantilever steel beam. The strain measured using this method agreed well with the strains measured using a strain gage and calculated from the elasticity theory.
- 一般社団法人日本機械学会の論文
- 1993-07-15
著者
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Kurita Masanori
Department Of Mechanical Engineering Nagaoka University Of Technology
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Kurita Masanori
Department Of Electrical And Electronic Engineering Faculty Of Engineering Yamaguchi University
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Kurita M
Nagaoka Univ. Technol. Niigata Prefecture Jpn
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Ma Yaowu
Department of Mechanical Engineering, Nagaoka University of Technology
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Ma Yaowu
Department Of Mechanical Engineering Nagaoka University Of Technology
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