Ink layer thickness detection based on laser triangulation technology

The problem of the accuracy of some prints in the field of packaging printing technology due to the inability to accurately detect the thickness of the ink layer is studied. For this purpose, a method of detecting the ink layer thickness by combining the laser triangulation technique and the image processing technique is proposed. Firstly, the platform of the ink layer thickness detection system is built. Then the industrial camera acquires images and processes the acquired images. Finally obtains the laser offset using the improved probabilistic Hough transform method to calculate the thickness value. The experiments verified that the method can effectively measure the ink layer thickness of plastic flexible packaging prints.