Based on the Analysis of Influence of Large Forgings Three Dimensional Size Research of Non-Contact Measurement Method

Abstract

To meet the practical application requirements of in-situ measurement methods and technologies for large forgings in China, two types of non-contact measurement methods are studied in this paper, including laser scanning measurement and structured light measurement. Based on the measurement principles of the two methods, the corresponding measurement system prototypes are designed. The feasibility of the two types of non-contact measuring systems designed is verified in the measurement experiments of large forgings, and the measurement differences between the two types of methods are compared according to the test results. The results show that the two methods meet the accuracy requirements of three-dimensional dimension measurement of large forgings, and the overall difference of measurement accuracy between the two methods is small. It is necessary to refer to other performance requirements for selection in practical application.