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7 August 2015 Research on high-precision laser displacement sensor-based error compensation model
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The triangulation measurement is a kind of active vision measurement. The laser triangulation displacement is widely used with advantages of non-contact, high precision, high sensitivity. The measuring error will increase with the nonlinear and noise disturbance when sensors work in large distance. The paper introduces the principle of laser triangulation measurement and analyzes the measuring error and establishes the compensation error. Spot centroid is extracted with digital image processing technology to increase noise-signal ratio. Results of simulation and experiment show the method can meet requirement of large distance and high precision.
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Zhifeng Zhang, Yusheng Zhai, Zhan Su, Lin Qiao, Yiming Tang, Xinjie Wang, Yuling Su, and Zhijun Song "Research on high-precision laser displacement sensor-based error compensation model", Proc. SPIE 9623, 2015 International Conference on Optical Instruments and Technology: Optoelectronic Measurement Technology and Systems, 96231A (7 August 2015);

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