Gocator 2300 & 2880 Series
Gocator Web Interface • Scan Setup and Alignment • 93
State Explanation
None Sensor is not aligned.
Profiles
are reported in default sensor coordinates.
Manual Transformations (
see on page 83
)
or encoder resolution (see on page 78)
have been
manually edited.
Auto
Sensor is aligned using the alignment procedure (see on the next page).
Alignment State
An indicator on the Alignment panel will display ALIGNED or UNALIGNED, depending on the Gocator's
state.
Alignment Types
Gocator sensors support two types of alignment, which are related to whether the target is stationary or
moving.
Type Description
Stationary
Stationary is used when the sensor mounting is constant over time and between
scans, e.g., when the sensor is mounted in a permanent position over a conveyor
belt.
Moving
Moving is used when the sensor's position relative to the object scanned is
always changing, e.g., when the sensor is mounted on a robot arm moving to
different scanning locations.
Alignment: With and Without 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
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 on page 45 for definitions of coordinate axes. See Calibration Targets on page
24 for descriptions of calibration disks and bars.
See Aligning Sensors on the next page for the procedure to perform alignment. After alignment, the
coordinate system for laser profiles will change from sensor coordinates to system coordinates.
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