Reverse Model for Curved Bridge Measurement Based on 3D Laser Scanning Technology

Table 1

The parameters of Scan Station P40.

Parameter	Distance accuracy	Scanning rate	Point accuracy	Target acquisition accuracy	Scanning range
Data	1.2 mm + 10 ppm	1 million points/s	3 mm @ 50 m; 6 mm @ 100 m	2 mm @ 50 m	360° horizontally; 290° vertically