Patent ID: 8152422

Claim:
A machine tool, comprising: a machining head; a workpiece holder comprising a workpiece; an adjustment device to create a relative displacement between the machining head and the workpiece; a numerical control to control the adjustment device based upon a value of the relative displacement of the machining head to the workpiece; a sensor assigned to the adjustment device to detect adjustment movements of the adjustment device; additional sensors to create a state variable based upon a relative displacement between the machining head and the workpiece, wherein the machining head includes a first additional sensor and the workpiece holder includes a second additional sensor, and wherein the additional sensors are configured to detect measurement inaccuracies due to a dynamic behavior between the adjustment device and the machining head during a machining of the workpiece; and a value for the relative displacement between the machining head and the workpiece based upon signals of the sensor assigned to the adjustment device and based upon the state variable, wherein the state variable detected by the additional sensors is selected from the group consisting of: temperature, inclination, angular speed, angular acceleration, axial acceleration in at least one direction, and a combination thereof.