Fig. 1. Schematic diagram of flexible thin-walled part measurement device with line laser profile sensor

Fig. 2. Line laser profile sensor measurement path diagram

Fig. 3. Sensor imaging schematic

Fig. 4. Schematics of coordinate systems. (a) Coordinate system of the optical plane of the line laser contour sensor; (b) coordinate system of the notched calibrator; (c) coordinate system of the non-inverted prismatic block

Fig. 5. Schematic diagrams of the system. (a) Schematic of the moving direction;(b) schematic of moving distance L along the β-direction

Fig. 6. Schematics before and after two trips of point cloud alignment; (a) Before alignment; (b) after alignment

Fig. 7. A, B sensor raw data coordinate system matching diagram

Fig. 8. Physical drawing of flexible thin-walled part measurement device with line laser contour sensor

Fig. 9. Thin-walled metal bipolar plate. (a) Cathode side; (b) anode side

Fig. 10. Comparison of results before and after splicing. (a) Comparison of cross-sections before and after correction; (b) splicing result at position 1; (c) splicing result at position 2; (d) splicing result at position 3; (e) splicing result at position 4; (f) A sensor scanning splicing result; (g) B sensor scanning splicing result

Fig. 11. A, B sensor point cloud data matching result

Fig. 12. Physical picture of rubber seal

Fig. 13. Results after splicing. (a) Overall result of measurement points; (b) cross-section of measurement points