Guoming Fang, Qi Peng, Haotong Ma, Shan Qiao, Jiang Bian, Feng Chen, Xincheng Liu, Yufeng Tan, Bi He, Li Dong. Three-Degree-of-Freedom Measurement Method Based on Plane Normal Vector[J]. Laser & Optoelectronics Progress, 2018, 55(11): 111201
- Laser & Optoelectronics Progress
- Vol. 55, Issue 11, 111201 (2018)
Fig. 1. Schematic of 3-DOF measurement principle
Fig. 2. Error analysis. (a) Position error; (b) parallelism error
Fig. 3. Angle values after 3-DOF simulation. (a) Angle α; (b) angle γ
Fig. 4. Displacement values after 3-DOF simulation
Fig. 5. Experimental device. (a) Schematic; (b) physical map
Fig. 6. Experimental results of angle. (a) Angle α in 2-DOF experiment; (b) real-time waveform of γ in 2-DOF experiment; (c) angle α in 3-DOF experiment; (d) angle γ in 3-DOF experiment
Fig. 7. Experimental results of displacement. (a) 2-DOF experiment; (b) 3-DOF experiment
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Table 1. Analysis results of angle α0
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Table 2. Fixed difference value removal of angle α
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Table 3. Positional deviations of measuring points in simulation process
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