8 ‒ Function Description | P1PY201 ‒ Laser Distance Sensor ToF 25
Function Possible settings Default
Sensitivity The sensor has very high sensitivity and can detect objects
with very weak signals and measure distances to them. Con-
stant interferences in the measured section, e.g., due to fog or
dust, can result in incorrect measurements. Such interfering in-
fluences can be suppressed by reducing the sensitivity. Re-
ducing the sensitivity also reduces the working range.
Maximum
In this setting, the working range corresponds to the values
specified in the data sheet.
Medium
With this setting, the working range changes to:
white (90% remission): 10,000 mm, gray (18% remission):
8,000 mm, black (6% remission): 5,000 mm
Low
With this setting, the working range changes to:
white (90% remission): 9,000 mm, gray (18% remission):
5,000 mm, black (6% remission): 3,000 mm
Minimum
With this setting, the working range changes to:
white (90% remission): 6,000 mm, gray (18% remission):
3,000 mm, black (6% remission): 1,800 mm
The technical data relating to reproducibility and linearity cor-
respond to the typical data sheet values in the various set-
tings.
Maximum
Interference filter The interference filter can be used to increase measurement
reliability in the case of brief interferences in the measured
section. Interferences such as rain, snow or chips in the air
generate brief signals, which can result in incorrect measure-
ments. A higher filter level allows the interfering signals to be
ignored for a defined period. If the distance changes sud-
denly, the response time is extended. This extension of the re-
sponse time depends on the filter level and the mode used. If
the distance changes continuously, the response time re-
mains unchanged when the filter is activated.
Off
Mode
Filter Speed Precision Precision Plus
Off - - -
1 2 ms 10 ms 20 ms
2 4 ms 20 ms 40 ms
3 6 ms 30 ms 60 ms
4 10 ms 50 ms 100 ms
5 20 ms 100 ms 200 ms
6 40 ms 200 ms 400 ms
7 60 ms 300 ms 600 ms
8 100 ms 500 ms 1,000 ms
9 200 ms 1,000 ms 2,000 ms
Emitted light The sensor’s laser can be switched on or off.
On
Laser on
Off
Laser off
On
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