SICK LMS5 Series, Руководство по эксплуатации

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Figure 10: Object smaller than the laser beam diameter
3.6.5 Distance between the device and the object/surface to be monitored
The laser beam expands with increasing distance from the device. This means that the
floor or a wall may be continuously detected as a result of it being hit by the laser
beam.
1 2
3
4
Figure 11: Beam expansion and supplement
1
Expanded laser beam
2
Supplement 5 mm/m
3
Optical axis
4
Continuous detection from 15 m
The optical axis is located around 63 mm above the lower edge of the housing when
the device is mounted vertically. This is used as a reference plane for the distance that
must be maintained from the ground/wall.
The range-dependent beam expansion can be calculated using this formula: Beam
diameter = distance (mm) × dive light spot size on the front screen. For values,
see "Technical data", page 84 .
The following table shows some example values:
Table 7: Beam diameter on the target object (diagonal) at different distances to the device
Distance LMS5xx (HR) LMS5xx (SR)
5 m 37 mm 73 mm
10 m 61 mm 133 mm
15 m 85 mm 192 mm
20 m 108 mm 252 mm
50 m 250 mm 609 mm
When assessing whether the laser beam can hit an object or the wall, the distance
from the half beam diameter to the optical axis is used.
NOTE
Take into account the supplement of about 5 mm per meter.
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PRODUCT DESCRIPTION
20 O P E R A T I N G I N S T R U C T I O N S | LMS5xx 8013796/1ALS/2021-03 | SICK
Subject to change without notice