| 摘要 |
The invention relates to a device for detecting and/or determining the position of a barrier layer contained in the wall of a tubular packaging material. The device comprises an infrared source and an infrared receiver, said source and said receiver being placed so as to transmit (receive, respectively) infrared radiation through part of the wall of a tube containing a barrier layer to be analyzed. The invention also relates to a method of detecting and/or determining the position of a barrier layer contained in the wall of a tubular packaging material 15, the method comprising transmitting infrared radiation through a tube wall containing a barrier layer, receiving and analyzing said infrared radiation. |
