Fundamental study on strain measurement method by revolving line sensor type full-field optical measurement machine

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The revolving line sensor type full-field optical measurement machine has been developed for surface strain measurement purpose by analyzing the pre-event and the post-event images through the digital image correlation method. A new stress relief method to measure the existing stress of PC structures by using this machine was developed. Furthermore, in order to investigate possibility of the corrosion monitoring system using this machine, the electrical corrosion test was carried out.