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Distance Measuring and Its Calibration Using Single-point Laser Optical Triangulation

LI Lan-jun~(1,2),YU Shou-yi~1(1.College of Information Science and Engineering,Central South University,Changsha 410083,China;2.School of Electrical Engineering,Nanhua University,Hengyang 421001,China)  
Introduced a kind of fast and accurate non-contact distance measuring.The principle of single-point laser optical triangulation and its main construction and described.Due to the non-linear characteristic of the used light-sensitive transducer-CCDs calibration curve,the method of using piecewise linear line to approximate CCD calibration curve and the algorithm program are given in detail.
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