| 摘要 |
<p>A method of controlling the endfill of elongated tobacco articles (2), whereby at least one collimated beam (16; 32, 33) of electromagnetic radiation is directed on to a series of photosensors (19) aligned in a direction parallel to a longitudinal axis (3) of an article (2), and is partially intercepted by one end of the article (2); the signal emitted by each photosensor (19) struck by the nonintercepted portion of the beam (16; 32, 33) is rejected by means of a threshold measurement; and the signal emitted by each photosensor (19) struck by the portion of the beam (16; 32, 33) intercepted by and penetrating the article (2) is compared with a range of limit values (Igmin, Igmax) characteristic of the endfill. <IMAGE></p> |
