DIMENSIONAL INSPECTION PROCESS OF MEDICAL AMPULES

摘要

To carry out an entirely automatic dimensional inspection process of medical ampules, the ampules (1) are cyclically transported in the horizontal position on a chain conveyor (30) through an opto-electronic inspection station (10). The ampules are lifted from the chain conveyor to be inspected and illuminated bytransmitted light in a direction normal to their longitudinal axis by a diffuse lighting source (11). In the case of OPC-ampules, the ampule is retated around its lon-gitudinal axis during inspection. The light that shines through the ampule is repro-duced on the opto-electronic converter (photodiode line) of a camera system (12) which converts the reproductions into electric video signals. These video signals are evaluated on the basis of the intensity variations caused by the inspected am-pule, in order to generate measurement values for the desired ampule dimensions as well as, if necessary, for deviations from the standard ampule dimensions.