Testing equipment and blister packaging machines

Abstract

The invention proposes a testing device configured to detect the presence or absence of any void and good / poor quality related to the thickness of the containing film in a manner that can be more reliably distinguished from one another, by using a single imaging unit. The inspection device 21 includes a single camera 52 configured to capture images of light transmitted through the membrane and thereby obtain light intensity image data; and an image processing device 53 configured to perform defect / non-defect determination of the membrane 3, based on light intensity image data. Lighting device 51 is configured to illuminate the containment membrane simultaneously with light of wavelength λi, whose light transmission towards camera 52 varies with the thickness of the containment membrane, and with light of wavelength λA, which has a shorter wavelength than λi and does not pass through the containment membrane. Image processing device 53 is configured to define areas of higher light intensity than the light intensity value LI in the light intensity image data, such as holes, and to perform good / bad quality determination related to membrane thickness in the area of ​​light intensity not exceeding the light intensity value LI in the light intensity image data, based on the light intensity of the area. The design also refers to the micro-packaging machine.