| 摘要 |
In a scale flow, particularly in a dense scale flow (S4) of flat articles such as printed products, the thickness of each individual element between a deflectable measurement part and a reference part is measured. The reference part in a timed movement for each measurement engages below that part of the scale which forms the surface of the scale flow. The reference part is constructed as an impeller (22), which is positioned laterally of the scale flow (S4) in such a way that its vanes 22.1-22.4, if the impeller (22) is rotated about its spindle (23), are moved between the scale located on the surface and the remainder of the scale flow. The deflectable measurement part is constructed as a sensing roll (21), which is pressed into an adjustable neutral position by spring tension. The deflection of the sensing roll (21) is measured and interrogated in timing manner. The timed cycle of the movement of the reference part and the timing cycle of the interrogation of the measured value are synchronized and are matched to the speed of the scale flow and the reciprocal spacing of the scale flow elements.
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