OPTOELECTRONIC MEASURING SYSTEM FOR ACQUIRING POSITION AND ORIENTATION MEASURES IN AN INDUSTRIAL MACHINE

摘要

Optoelectronic position and orientation measurement system (S2, R2, S3, R3) to determine the position of a working tool, movable in two or three dimensions, in an industrial machine. A sequence of two or optionally three consecutive laser beams (B2, B3) is guided along the two or three axes (A_Z, A_X) of movement of the machine. The full position of each of the two or three end points of the optical measuring systems (e.g. interferometers) , fixed to mobile parts (4, 9) of the machine, are measured to determine all six degrees of freedom of the working tool with respect to the stationary frame of the machine . Endpoints of one interferometer preferably coincide with the starting points of the next interferometer such that no unmeasured parts may introduce errors .