| 摘要 |
The subject of the present invention is a method and a machine for automatically inspecting and sorting non-metallic objects. The method is characterized in that it essentially consists in temporarily subjecting a surface or outer layer (4) of objects (1) travelling as a monolayer stream to the thermal radiation from at least one heating means (5) some distance away, so as to deliver, to each of these travelling objects (1), a non-impairing thermal pulse which is identical for all the objects in terms of thermal energy applied per unit area in the plane of conveying (2), then in taking at least one thermal image of each of said objects by means of at least one linear or matrix thermal detector (6), for example a thermal camera, after a specified amount of time has elapsed following application of the thermal pulse, then in classifying or categorizing each travelling object (1) according to the data contained in its thermal image(s), in delivering a control or actuation signal for each object and, finally, in separating the travelling objects (1) according to their class or category and/or according to the corresponding control or actuation signal delivered. |
