Study on Laser Measurement Technology of Inner Surfaces

Abstract

Aiming at the traditional measurement methods and equipment cannot meet the accurate measurement problems of complex inner surface geometry parameters. This paper proposes combining the laser displacement sensors, rotary encoders and machine control system to build the measurement system. This system overcomes the traditional contact measurement of the low efficiency, low velocity, low accuracy, and realizes measuring slender and long inner surface. Through analysis and processing of the acquisition of point cloud data, draw a cross-sectional contour of the workpiece to achieve a precise measurement of the internal surface.