Method for measuring the deformation of large-sized workpiece
A measurement method and large-scale technology, applied in the field of measurement, to achieve the effects of improving measurement efficiency, convenient measurement and short measurement cycle
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[0021] The present invention will be further described in detail below in conjunction with the accompanying drawings.
[0022] When measuring the deformation of a certain large-scale workpiece, the first step is to place a fixed point. Paste the coded mark points at fixed positions around the workpiece to be measured (no displacement changes during the deformation process), and serve as a benchmark for the correlation between the later deformation states. The placement of the fixed point should meet the following requirements: the fixed point, as the benchmark for mutual conversion between states, should be placed at a position that does not deform with the workpiece, so as to ensure that the spatial position of the global point does not change during the deformation process. According to different workpiece sizes and shapes, when placing fixed points, there should be no less than 4 fixed points, and all fixed points should not be in the same plane. The enclosing area formed ...
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