Echo 1
Echo 2
Figure 20: Using the echo filter (setting: last echo): the device screens out unwanted echoes from
ambient conditions as per the settings chosen.
Echo 1
Echo 2
Figure 21: With echo filter (setting: First echo): The device uses the first echo and suppresses all
following echoes.
3.7.1.4.3
Particle filter
The particle filter blanks small, irrelevant reflection pulses in dusty environments and
in rain or snow which are caused by dust particles, raindrops, snowflakes or the like. In
doing so, successive scans are continuously evaluated in order to detect static objects.
NOTE
If the particle filter is activated, measurement data output or reaction of the field
evaluation is delayed by one scan.
!
Figure 22: Without the particle filter: Violation
of the contour due to dust particles in the
vicinity of the object.
"
Figure 23: Using the particle filter: The
response to dust particles in the field is
delayed by one scan. Particles can thereby be
blanked.
3.7.1.4.4
Average filter
Using the mean filter, a blockwise (not moving) arithmetic average is calculated from
the configured number of scans and then outputted. The big advantage when using this
filter: Potential noise, i.e. minimal deviation of values, is reduced, which also lowers the
quantity of data.
3
PRODUCT DESCRIPTION
32
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
