Gocator Line Profile Sensors: User Manual
Gocator Web Interface • 276
Surface Measurement
Surface measurement involves capturing a sequence of laser profiles, optionally identifying discrete
objects, and measuring properties of the surface or the objects, such as the volume of the object or the
height at a certain position of the object. All volumetric tools have the ability to operate either on the
entire surface or the full object, or within a region of interest at a certain position in relation to the
surface or an object.
Multiple measurements can be performed on the entire surface or each discrete object, limited only by
the available CPU resources.
The frame of reference for the coordinate system of the detected object can be set to Sensor or Part in
the Part Detection panel (Part Detection on page 153). This setting determines what coordinate system
the region of interest for a measurement is positioned in, as well as the coordinate reference used to
output measurement values.
For example, if you need to measure the average height in a certain location relative to the sensor's field
of view regardless of the objects passing under the sensor, the frame of reference should be set to
Sensor. This is typical in applications where a wide web of material is continuously scanned, such as
paper, rubber, fabrics, etc. If on the other hand you need to measure the average height in a certain
location of a scanned object, the frame of reference should be set to Part. This is typical in applications
where discrete objects pass under the sensor and specific locations on the objects need to be inspected.
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