Apparatus and method for measuring the diameter of rods, especially in the tobacco manufacturing industry

摘要

Device for measuring the diameter of a rod-shaped object (12) has an illuminating device (4) for illumination of the object and a receiving device (20) for detecting the shadow cast by the object. The device also has an arrangement for selectively changing the alignment of a beam path (10) relative to the object. An independent claim is made for a method for measuring the diameter of at least a rod-shaped object.