Figure 9: Visualization of a scanned wand as an example for the effect of the cone-shaped scan
layer
3.4.2 Range finding
The device emits beams pulsed by a laser diode. If the laser beam is reflected by an
object, the reflected beam is received by the sensor.
The distance to the object is calculated on the basis of the time that the pulsed light
beam requires to be reflected and received by the sensor.
The device uses an in-house technology from SICK. With this measurement process,
a measured value is formed statistical evaluation of multiple single pulses. The multi-
echo concept evaluates up to 691200 measured values per second. The measured
value consists not only of a single time-of-flight measurement, but includes evaluated
information from numerous pulses. This guarantees a significantly more stable time
and distance measurement.
1
Emitted pulse
2
Receive pulse
3.4.3 Multi-echo analysis
The distance between the device and an object is calculated via the time-of-flight of the
emitted pulse. The device can evaluate up to three echo signals for each measuring
beam to deliver reliable measurement results, even under adverse ambient conditions.
PRODUCT DESCRIPTION 3
8027119/0000/2022-11 | SICK O P E R A T I N G I N S T R U C T I O N S | multiScan136
17
Subject to change without notice
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