ID Chip
An ID chip is in the connector of many piezo stages. When the stage is calibrated at the factory with a digital controller, the calibration data is saved together with specific product information on the ID chip. When switched on, digital controllers read the data from the ID chip of the connected stage. Stages, whose ID chip contains the calibration data, can therefore be connected to any suitable digital electronics without renewed calibration.
Incremental Encoder
When incremental encoders are in motion, they generate impulses that are counted by the controller. However, in contrast to absolute encoders, it is a question of determining a relative position. To determine an absolute position, a limit switch or reference switch signal must also be referenced.