Encoder Calibration

For systems that use an encoder, encoder calibration can be performed while aligning sensors. The table below summarizes the differences between performing alignment with and without encoder calibration.

	With encoder calibration	Without encoder calibration
Target Type	Calibration disk or calibration bar	Flat surface or calibration bar
Target/Sensor Motion	Linear motion	Stationary
Calibrates Tilt	Yes	Yes
Calibrates Z axis Offset	Yes	Yes
Calibrates X axis Offset	Yes	Yes (Calibration bar required)
Calibrates Encoder	Yes	No
Calibrates Travel Speed	Yes	No

See Coordinate Systems for definitions of coordinate axes. For descriptions of disks and bars, as well as alignment procedures, see the appropriate sections in Aligning Sensors with up to 5 Degrees of Freedom.

After alignment, the coordinate system for laser profiles will change from sensor coordinates to system coordinates.