Author Affiliations
Key Laboratory of Photoelectric Measurement and Control and Optical Information Transmission Technology of Ministry of Education, School of Photoelectric Engineering, Changchun University of Science and Technology, Changchun , Jilin 130022, Chinashow less
Fig. 1. Block diagram of system composition
Fig. 2. System overall layout
Fig. 3. Measuring principle
Fig. 4. Projection grating measurement system
Fig. 5. MaxShot-3D auxiliary system
Fig. 6. Schematic diagram of MaxShot-3D auxiliary system
Fig. 7. Flow chart of NDT-ICP algorithm
Fig. 8. System coordinate system
Fig. 9. Robot measurement system
Fig. 10. Coordinate measuring tool
Fig. 11. Measurement of multi-features complex parts
Fig. 12. Comparison results of multi-feature parts deviation
| Serial number | Theoretical value /mm | Measured value /mm | Absolute error /mm | Error /% |
|---|
| 1 | 180.667 | 180.756 | 0.089 | 0.04926 | | 2 | 366.356 | 366.230 | -0.126 | -0.03439 | | 3 | 566.810 | 566.676 | -0.134 | -0.02364 | | 4 | 665.208 | 665.279 | 0.071 | 0.01067 | | 5 | 892.216 | 892.381 | 0.165 | 0.01849 | | 6 | 963.425 | 963.571 | 0.146 | 0.01515 | | 7 | 1020.895 | 1020.706 | -0.189 | -0.01851 | | 8 | 1160.795 | 1160.637 | -0.158 | -0.01361 | | 9 | 1206.895 | 1206.799 | -0.096 | -0.00795 | | 10 | 1245.652 | 1245.790 | 0.138 | 0.01107 | | 11 | 1268.426 | 1268.608 | 0.182 | 0.01434 | | 12 | 1455.756 | 1455.604 | -0.152 | -0.01044 | | 13 | 1776.176 | 1776.314 | 0.138 | 0.00776 | | 14 | 1832.562 | 1832.373 | -0.189 | -0.01031 | | 15 | 2005.446 | 2005.318 | -0.128 | -0.00638 | | 16 | 2105.899 | 2105.766 | -0.133 | -0.00632 |
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Table 1. Experimental data of length measurement accuracy
| Serial number | x /mm | y /mm | z /mm |
|---|
![]() ![]() | 0.047 | 0.083 | 0.086 | | 1 | 1564.655 | -650.785 | -860.436 | | 2 | 1564.648 | -650.779 | -860.388 | | 3 | 1564.637 | -650.821 | -860.367 | | 4 | 1564.647 | -650.813 | -860.459 | | 5 | 1564.645 | -650.832 | -860.447 | | 6 | 1564.629 | -650.775 | -860.401 | | 7 | 1564.654 | -650.825 | -860.398 | | 8 | 1564.617 | -650.752 | -860.442 | | 9 | 1564.663 | -650.831 | -860.379 | | 10 | 1564.636 | -650.775 | -860.407 | | 11 | 1564.681 | -650.774 | -860.456 | | 12 | 1564.626 | -650.756 | -860.388 | | 13 | 1564.644 | -650.829 | -860.401 | | 14 | 1564.658 | -650.791 | -860.416 |
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Table 2. Repeated measurement precision experimental data
| Serial number | X /mm | Y /mm | Z /mm | Rx /(°) | Ry /(°) | Rz /(°) |
|---|
| 1 | 993.977 | -38.314 | 529.875 | 59.0847 | -24.6469 | 101.8146 | | 2 | 1038.727 | -132.692 | 546.725 | 59.3185 | -38.6348 | 103.0469 | | 3 | 1096.241 | -331.921 | 494.674 | 43.2820 | -66.5047 | 117.3944 | | 4 | 1224.882 | -369.999 | 541.026 | 45.9820 | -50.9580 | 162.3511 | | 5 | 1271.108 | -321.508 | 623.037 | 123.6948 | -43.0365 | 47.4343 | | 6 | 1289.774 | -199.100 | 675.893 | 133.5328 | -36.1505 | 41.7240 | | 7 | 1376.074 | -47.454 | 697.958 | 118.1917 | -24.5146 | 73.5471 | | 8 | 1360.720 | 39.387 | 695.143 | 124.2321 | -5.3254 | 81.3530 | | 9 | 1403.427 | 185.290 | 631.219 | 116.7444 | 2.6653 | 94.9790 | | 10 | 1454.913 | 191.956 | 554.876 | 60.6811 | -17.0922 | 10.2865 | | 11 | 1068.734 | 259.451 | 496.732 | 64.3929 | -2.4811 | 78.5036 | | 12 | 1031.300 | 115.174 | 526.958 | 61.3720 | -14.8742 | 89.8495 |
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Table 3. Multi-feature complex parts automatic measurement manipulator position
