Study on Laser Triangulation Measurement Principle of Three Dimensional Surface Roughness
The basic principle of three-dimensional surface roughness laser triangulation has been analyzed in this paper, Light-path diagram and optical geometric relationship of direct-type and symmetric oblique-type triangulation measurement is studied, the mathematical model of Surface micro-height information analysis is given. Resolution of direct-type and symmetric oblique-type triangulation measurement is compared both qualitatively and quantitatively. At last, the Application of laser triangulation method in Three-dimensional surface roughness measurement is analyzed.
Dunwen Zuo, Hun Guo, Hongli Xu, Chun Su, Chunjie Liu and Weidong Jin
F. K. Cui et al., "Study on Laser Triangulation Measurement Principle of Three Dimensional Surface Roughness", Advanced Materials Research, Vol. 136, pp. 91-94, 2010