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24 November 2016 Elongation measurement using 1-dimensional image correlation method
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Aim of this paper was to study, setup, and calibrate an elongation measurement by using 1- Dimensional Image Correlation method (1-DIC). To confirm our method and setup correctness, we need calibration with other methods. In this paper, we used a small spring as a sample to find a result in terms of spring constant. With a fundamental of Image Correlation method, images of formed and deformed samples were compared to understand the difference between deformed process. By comparing the location of reference point on both image’s pixel, the spring's elongation were calculated. Then, the results have been compared with the spring constants, which were found from Hooke’s law. The percentage of 5 percent error has been found. This DIC method, then, would be applied to measure the elongation of some different kinds of small fiber samples.
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Phachara Phongwisit, Surachart Kamoldilok, and Prathan Buranasiri "Elongation measurement using 1-dimensional image correlation method", Proc. SPIE 10023, Optical Metrology and Inspection for Industrial Applications IV, 1002305 (24 November 2016);

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