| 摘要 |
A system ( 10 ) for automatically inspecting a stream of matter ( 12 ) for varying composition, comprising an emitting device ( 16 ) serving to emit a detection medium, which comprises electromagnetic radiation of a substantially constant intensity, to an irradiated zone (I) of the stream at which the medium penetrates a surface of the matter ( 12 ), the irradiated zone (I) extending continuously across substantially the width of the stream, the medium penetrating the surface being varied by the matter ( 12 ), a receiving device ( 32 ) for receiving the varied medium emanating from the matter ( 12 ) at a detection zone (D) substantially separate from the irradiated zone (I), and a detecting device ( 34 ) serving to generate detection data in dependence upon the varied medium, the arrangement being such that, in use of the system ( 10 ), at least the majority of the varied medium received at the receiving device ( 32 ) can be transflected medium.
|
