Measuring Coaxality with Optoelectronic and Noncontact Based on Helical Scanning

A laser triangulation scan method for measuring distance was studied.The aim of relative motion between the measurement object and micro-displacement laser sensor was to implement helical scan motion,and the method of spiral scanning projection to measure coaxality,according to step servo system by gyration and the axial feed,was used.It could improve manufacture efficiency and achieve the demand of online automatic testing.The system and the method of measuring was introduced,and the simulation results of the method and actual feasibility analysis were provided.