Operating Instructions
LMS500 Product Family
Product description
8013796/UL20/2010-09-27 © SICK AG · Division Auto Ident · Germany · Subject to change without notice 23
Chapter 3
Fig. 13: Beam diameter and distance between measured points of LMS500 at 0 to 65 m
(0 to 213.25 ft)
Example for angular resolution 0.167° (HR) in Fig. 13
Distance 35 m (114.83 ft)
Distance intersection point 30 m (98.42 ft) gives a distance between the measured points
of approx. 87 mm (3.43 in)
Distance intersection point 30 m (98.42 ft) with the characteristic curve for beam diameter
gives a beam size of approx. 150 mm (5.91 in) (HR) or 342 mm (13.46 in) (SR)
3.5.3 Minimum object size
To reliably detect an object, a laser beam must be fully incident on it once. If the beam is
partially incident, less energy will be reflected by an object than necessary in
somecircumstances (see Fig. 9 on page 21).
An object is only reliably fully seen if it is at least as large as the measured point spacing
plus the beam diameter.
Fig. 14: Minimum object size for detection
Laserspot SR
Target distance [m]
Beam diameter [mm]
1° angle
resolution
0.176° angle
resolution
Laserspot HR
Scan 1
Scan 2
Scan 3
Beam diameter
Distance between measured points
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