Abstract: Method for the optical measurement of at least one measurand on a workpiece, including: providing a workpiece to be measured, wherein the workpiece comprises a cyclically symmetrical geometry, such as a toothing or the like; specifying the at least one measurand on the workpiece; providing a measuring device having an optical measuring system for the contactless measurement of the measurand on the workpiece, wherein the optical measuring system has an optical sensor; measuring the at least one measurand on the workpiece using the optical measuring system; characterized by providing at least one geometrical parameter of the workpiece to be measured; and determining at least one measurement parameter for carrying out the optical measurement on the basis of the at least one measurand on the workpiece and/or the at least one geometrical parameter of the workpiece to be measured.

Abstract: A method and apparatus for carrying out contact measurement on at least one tooth flank of a gearwheel workpiece including the steps of: predetermining or defining a maximum region relating to the tooth flank, predetermining or defining a critical region relating to the tooth flank that overlaps the maximum region at least in part, executing relative movements of a probe of a measuring apparatus to guide the probe along the tooth flank to obtain actual measured values with a first resolution for a plurality of locations on the tooth flank within the maximum region, and obtain actual measured values with a second resolution for a plurality of locations on the tooth flank within the critical region, wherein the second resolution is higher than the first resolution.

Abstract: The invention relates to a method of inspecting gears during their manufacture in the gear cutting machine, wherein the respective workpiece is traveled to by the tool at specific reference points to determine any deviations. The setting of the tool can be corrected by means of these deviations via a control loop.

Abstract: Method and device for verifying and measuring a double-toothing sprocket wheel (14) to identify the respective positions of the teeth (24) of the two toothed rings (27a, 27b) thereof, in which method use is made of a pair of contacting elements, a first lower (23a) and a second upper (23b) contacting elements which lie in different parallel planes, the contacting elements cooperating respectively with one groove (25) of the first ring (27a) and one groove (25) of the second ring (27b), in which method a first contacting element (23a) is constrained to lie in a position which is fixed radially with respect to the longitudinal axis (17) of the sprocket wheel (14), and the second contacting element (23b) is progressively displaced in a radial direction with respect to the longitudinal axis (17) of the sprocket wheel (14) until it reaches a position of maximum possible advance, the position of maximum advance being compared with a reference position to establish a condition of alignment between the terminal ends