Large-size Water-cooled Plate Height Measurement System Based on Multi-line Laser
In order to meet the needs of modern industrial non-contact,high precision and fast surface height measurement of large workpieces,a water-cooled plate height measurement system based on multi-line laser was designed,which consisted of three parts:motion control,image acquisition and image processing.Firstly,the hardware of the system was selected.Secondly,accord-ing to the point cloud data obtained by the line laser,a water-cooled plate height measurement method was proposed.In order to reduce the influence of interfering point clouds,Gaussian filters were used to denoise the point cloud after template matching,and the point cloud data participating in the height calculation were screened based on statistical methods.The experimental data show that the accuracy of the repeated measurement error of the system is less than 30 μm,and the measurement time is less than 1 mi-nute,which meets the production needs of enterprises.
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