Research on Non-contact Measuring Technique of Rocket Radial Dimensions

Based on blocking laser scanning principle,a high-precision,non-contact measurement photoelectric system was presented to test the Rocket radial dimensions.In the paper,blocking laser scanning measurement principle was presented and described,and discussed the overall structure of the system.It chose the semiconductor laser as light source,optical grating as sensor to test the radial dimensions,and took advantage of MCU to control measurement and data processing.