STUDY ON THE ON LINE AND REAL TIME MEASURING SYSTEM OF SEAMLESS STEEL PIPE LINEARITY BY VISUAL ALIGNMENT TECHNOLOGY
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An on line and real time measuring system for seamless steel pipe linearity is advanced by the technology of visual alignment.The measurement model of the system is given.The measurement precision as well as the resolution is estimated with a set of experiments.The experiment results testify that the measuring system is reasonable and not only the linearity but also coaxality of large parts can be measured by visual alignment.