Dynamic measurement of axial and radial jitter of wheel rim by laser

By means of optical and CCD image processing technique,a system for detection of the axial and radial jitter of wheel rim is introduced in this paper.With the system,the image of the wheel and the pattern shaded by the wheel are imaged on CCD sensor.According to the variations of the image and the shaded pattern,the axial and radial jitter can be calculated out.This paper gives out the main constructure of the detection system.