METHOD FOR INSPECTING FOREIGN MATTER IN SOLUTION AND EQUIPMENT THEREFOR

摘要

An image of a vial (10) containing a liquid agent is picked up by means of CCD cameras (18a, 18b). In particular, a reference image A before rotation, an image B after rotation and an image C after a specified time after rotation are taken, and are processed by a data processor (36). A large foreign matter is detected by comparing the image B with the reference image A and a small foreign matter is detected by discriminating it from a flaw of the vial (10) by comparing the image C with the image B. Thus a foreign matter mixed into the liquid agent can be inspected easily and accurately.