For maximum accuracy, it is necessary to mount the sensor as close as possible to the part whose position is to be controlled. Sometimes this is not possible for various reasons. PI offer piezo actuators with integrated sensors as well as external sensors.
Piezo Calibration Data
Each PI Piezo position servo controller is calibrated with the specific Closed Loop Piezo (system) to achieve optimum displacement range, frequency response and settling time. This calibration is done at the factory and is free of charge. A report with plotted and tabulated positioning accuracy data will be supplied with the system. To optimize calibration, information about the specific application is needed.