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A two-beam laser triangulation for measuring the position of a moving object |
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| Authors: | Lijiang Zeng Fan Yuan Deqiang Song Rong Zhang |
| Institution: | Department of Precision Instruments, State Key Laboratory of Precision Measurement Technology and Instruments, Tsinghua University, Beijing 100084, People's Republic of China |
| Abstract: | A two-beam laser triangulation method has been proposed to measure the position of a moving object. The method uses two parallel laser beams to judge the moving direction of an object, allowing us to track it and measure its positions. An uncertainty of 0.2 mm for a measurement range of 50 mm has been obtained. This tracking measurement capability is useful in the calibration of the position of a moving robot arm. |
| Keywords: | Laser triangulation Tracking measurement Position of a moving object |
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