Design Of The Measurement System For Spinneret Based On Digitalimage Processing

The paper analyzed the features and present state of the measuring system for spinneret,and then applying the technology of digital image processing,we designed a type of new measuring system for spinneret. Through threshold transforming,dilation and area labeling of the source image which,input into computer by scanner,contains the information of the whole spinneret,the system can compute locations of every micro-hole. Then the pickup camera equipped with microscope is moved on every micro-hole driven by step-by-step motors. The image of the micro-hole is captured to the computer after auto-focusing. This image then will be recovered and threshold transformed,thickened and rotated. Finally system measures the parameters of the micro-hole and outputs the result. The high-automation of the system makes the worker with responsibility for measuring spinneret do much less than before. And it's high-efficiency high-precision and high-speed make the system competent for measuring the spinneret.