Product description
28 © SICK AG · Germany · All rights reserved · Subject to change without notice 8013796/ZM63/2017-05-09
Operating Instructions
LMS5xx Laser Measurement Sensors
Chapter 3
3.7.1 Scanning range of the LMS5xx
The scanning range of the LMS5xx is dependent on the remission of the objects to be
detected. The better a surface reflects the incident radiation, the greater the scanning
range of the LMS5xx. The diagrams in Fig. 12 indicate the relationship between remission
and detectability.
Fig. 12: Scanning range of the LMS5xx as a function of the target remission
Example to Fig. 12: Up to a distance of 15 m the LMS5xx (HR) can detect objects from 3%
remission. At a distance of 80 m objects are only detected if they have a remission > 95%.
Important The diagram in Fig. 12 is only applicable if no filters are configured.
The scanning range can be significantly reduced depending on the environment (e.g.
fog, rain, dust).
3.7.2 Beam diameter and distance between measured points
With increasing distance from the LMS5xx the laser beam of the LMS5xx increases in size.
As a result the diameter of the measured point on the surface of the object increases.
The distance-dependent diameter of the measured point is the distance (mm) × 0.0046 rad
(HR) or 0.011 rad (SR) + 13 mm.
Fig. 13: Beam expansion
Scanning range LMS500-20000 (HR)/LMS511-10100 (SR) and LMS511-20100 (HR)
Target remission [%]
Target distance [m]
HR
SR
Optical axis
Expanding laser beam
Beam diameter at the front
screen = 13 mm
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