Method and device for carrying out a measurement on a claw coupling

摘要

The method involves engaging claws (5, 6) of one coupling half into claws (5, 6) of other coupling half, and measuring distances between two adjacent claws, with the help of a single light beam that is directed on an area (8) from the claws. The claws interlock into each other. The distances between the claws are compared to one another. Information is derived from the distance measurement by an angle of twist of the halves. An independent claim is also included for a device for implementing a method of measuring a distance between claws in a claw coupling.