3 Product Description
Q-522 Miniature Stage
MP134E
Version: 1.0.1
15
3.7 Technical Features
3.7.1 Linear Encoder (Sensor)
Some models of the Q-522 are equipped with an optical linear encoder. For the
encoder resolution, refer to the table in the "Specifications" section (p. 47).
Optical linear encoders measure the actual position directly (direct metrology).
Therefore, errors occurring in the drivetrain, such as nonlinearity, backlash or elastic
deformation, cannot influence the measurement of the position.
3.7.2 Reference Point Switch
The Q-522 models equipped with a sensor have an optical reference point switch.
The commands that use the reference signal are described in the user manual of the
controller and/or in the corresponding software manuals.
3.7.3 ID Chip
Q-522 models with sensor contain an ID chip in the connector.
The following data are stored as parameters on the ID chip:
Information on the stage: Type, serial number, date of manufacture, version of
the hardware
Settings for the sensor: Interpolation rate, corrections of hysteresis as well as
of phase and offset, gain values
When switched on or rebooted, controllers from PI read the data from the ID chip.
For more information on the ID chip recognition, see the manual of the controller used.
