8
Resolution 0.5°
9
Resolution 0.3333°
ß
Resolution 0.25°
à
Resolution 0.1667°
Reading example with angular resolution 0.1667° (HR) in
•
Distance intersection point 30 m results in a measuring point distance of approx.
87 mm.
•
Distance intersection point 30 m with the characteristic curve for beam diameter
results in a beam expansion of about 150 mm (HR) or 370 mm (SR).
3.6.8
Minimum object size
For an object to be detected reliably, it must be hit completely by a laser beam once. If
the beam only partially hits, less energy may be reflected from the object
An object is then reliably hit completely at any time if it is at least as large as the
measuring point distance plus the beam diameter.
Scan 1
Scan 2
Scan 3
1
2
Figure 16: Minimum object size for detection
1
Beam diameter
2
Measuring point distance
In the example in
, the object is fully hit at least once during each scan. It is
therefore reliably detected if it has the necessary remission.
How to calculate the minimum object size:
Beam di measuring point distance = minimum object size
•
Beam diameter and measuring point distance as a function of the distance to the
device can be seen in the diagram in
PRODUCT DESCRIPTION
3
8013796/1ALS/2021-03 | SICK
O P E R A T I N G I N S T R U C T I O N S | LMS5xx
23
Subject to change without notice
