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Accelerated structural damage visualization through multi-level noncontact laser ultrasonic scanning and visualization method thereof
Accelerated structural damage visualization through multi-level noncontact laser ultrasonic scanning and visualization method thereof
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机译：多级非接触激光超声扫描加速结构损伤可视化及其可视化方法
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摘要
The present invention relates to an apparatus and method for accelerating damage diagnosis of structures through a multi-density non-contact type laser scanning. More particularly, the present invention relates to a pulse laser for generating ultrasonic waves by irradiating a laser beam onto a structure, an ultrasonic wave measuring device for measuring ultrasonic waves generated in the structure, A damaged mirror extraction module for analyzing the signals collected from the ultrasonic wave generation point and the pair of measurement points and extracting damaged ultrasonic reflection components to estimate the damage position of the structure, A correlation analysis module for estimating a damage position of the structure by analyzing the correlation, and an image processing module for extracting and automatically detecting damage information by imaging the measured data in the ultrasonic measuring device. The apparatus for high-speed diagnosis of structure damage through multi-density non-contact laser scanning according to the present invention scans a structure at a low density, estimates a rough damage location by a damage reflection extraction module or a correlation analysis module, scans the estimated damage area at high density Image processing is performed, and damage diagnosis of a large structure is performed quickly and accurately.
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