Chapter
7
Reference Manual
Ruler E
Hardware Description
7
Hardware Description
7.1
Measurement Set Up
The field-of-view (FOV) is located at a certain distance from the Ruler, the stand-off, and is
a trapezoid shaped area in the laser plane. The maximum height and the maximum width
of the object to be inspected define a rectangle which must be entirely inside the trapezoid
total FOV.
Figure 7.1 – The Ruler’s field-of-view
The Ruler delivers profiles at a rate determined by the camera parameter settings. The
maximum possible profile rate depends on the chosen measurement accuracy and se-
lected region of interest. It should be noted, however, that the maximum usable profile
rate in an application may be limited by the surface properties of the inspected objects
and the laser strength used. The selected profile rate defines the resolution in the length
(moving) direction.
Total
field of view
Stand-off
Example
field of view
Total
height
range
height
width
52
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