Detektering av perforering vid plastpåstillverkning
FAS Converting Machinery AB makes machines for plastic-bag manufacturing. The company is located in Ystad in the very south of Sweden. They want a new method for detecting the perforated joints between the plastic-bags, to make the machine able to count the number of bags rolled up. The current method uses a spark that goes through the small holes in the perforation. That method does not work at h