APPARATUS FOR INSPECTING ROD SHAPED ARTICLES

摘要

Apparatus for inspecting a rod shaped article such as a cigarette, comprising a projector arrangement configured to project two or more beams of electromagnetic radiation in a direction parallel to the longitudinal axis of the rod shaped article, wherein the two or more beams of radiation do not substantially overlap; a receiver arrangement configured to receive radiation of the two or more beams which is not interrupted by the article; and a processor arrangement configured to receive information on the radiation received and to determine, from the information on the radiation received, information on the cross-sectional profile of the rod shaped article. The apparatus can be used to detect manufacturing faults in a cigarette making machine.