STUDY OF METHOD OF AUTO-DETECTING LARGE SPINNERET

Because of bending deformation after repeatedly using,the board of large spinneret is often unsmooth.CCD can't acquaire the clear image of the micro porous and causes the error detection.We put forward two improving measures to decrease the number of auto-focusing to solve the problems that error detecting is caused by the unsmooth surface and auto-focusing efficiency is low during auto-detecting the large spinneret,and also enhance the accuracy and efficiency of the instrument in auto-detecting large spinneret.