596
Ultrasonic Sensors
3
Ultrasonic Sensors,
Thru-Beam Sensors,
cylindrical
3
.2
Ultrasonic Sensors,
Diffuse Mode Sensors,
cylindrical
3
.1
Ultrasonic Sensors,
Thru-Beam Sensors,
rectangular types
3
.2
Ultrasonic Sensors,
Diffuse Mode Sensors,
rectangular types
3
.1
Ultrasonic Sensors,
Sensors for Separate Evaluation
3
.3
Ultrasonic Sensors,
Double Sheet Sensors
3
.4
Ultraschallsensoren,
Ultrasonic Sensor Accessories
3
.5
Germany: +49 621 776-4411
Consider the General Notes on the Information in the Pepperl+Fuchs Product Catalogs
Pepperl+Fuchs Group
fa-info@de.pepperl-fuchs.com
USA: +1 330 486 0001
fa-info@us.pepperl-fuchs.com
Singapore: +65 6779 9091
fa-info@sg.pepperl-fuchs.com
Copyright Pepperl+Fuchs
The start and end of the switching range and analog range can be taught
at the touch of a button, and parameter sets can be copied from one sen-
sor to another.
You can download SONPROG free of charge in the download area at
or via a direct link on the product page for each
sensor compatible with SONPROG.
ULTRA-PROG-IR
The ULTRA-PROG-IR PC program and associated UC-18/30GM-IR pro-
gramming device enable ultrasonic sensors with an infrared interface to
be adjusted easily in line with the application requirements. The existing
wiring to the sensor need not be removed as the programming device
snaps on to the sensor. The distance and the quality of several echoes
can be visualized in real time. Communication with the sensor does not
affect the measuring task in the sensor.
Examples of adjustable parameters:
•
Start and end of the switching range
•
Hysteresis
•
Switching frequency
•
Start and end of the analog characteristic
•
Analog characteristic rising or falling
•
End of the blind zone
•
End of the detection range
•
Averaging
•
Attenuation
•
Multiplex function
•
Temperature compensation
•
Function as a diffuse mode sensor or ultrasonic sensor
•
Level measurement mode
IO-Link/PACTware
The IO-Link interface enables ultrasonic sensors from the UC…-18GM-..
IO and UC…-30GM-..IO Series to be configured and parameterized with
ease. It is also possible to carry out diagnostics for the connected sensor.
The IO-Link Master01 USB is used to communicate between the sen-
sor and the PC.
PACTware
parameterization and diagnostics software is
used together with the corresponding DTM.
PACTware
is an open, manufacturer-independent user interface that is
used in areas such as the parameterization of ultrasonic sensors.
You can download
PACTware
free of charge at
or via a direct link on the product page for each sensor with an IO-Link.
5.
Resolution/measurement accuracy
Resolution
Pepperl+Fuchs UC-type ultrasonic sensors are fitted internally with an in-
tegrated 12-bit D/A converter. A resolution of 12 bits corresponds to 4096
levels. The echo travel time is determined at a resolution of approx. 1 µs.
This equates to a distance resolution of around 0.18 mm. This maximum
sensor resolution is reached with a maximum measurement window of
750
mm. Up to this window size, the resolution depends solely on the
pulse frequency of the microcontroller.The D/A converter determines the
resolution by selecting a larger measurement window. This is calculated
according to the following formula:
(
upper limit – lower limit) / 4096
Example:
A UC4000-30GM-IUR2-V1 sensor is set with the following parameters.
Upper limit: 3500 mm
Lower limit: 800 mm
With this setting, the sensor resolution is
(3500
mm - 800 mm) / 4096 = 0.66 mm
Measurement accuracy/characteristic deviation
To determine the absolute accuracy of the measured value for an ultra-
sonic sensor, the following influencing factors must be taken into consid-
eration:
•
Temperature
•
Atmospheric pressure
•
Relative humidity
•
Atmospheric turbulence
•
Hot spots in the ambient air around the sensor or the object
•
Sensor at operating temperature state
Consideration of these influences can provide measurement accuracy of
better than 2%.
Reproducibility and linearity are better than 0.2% (under constant ambi-
ent conditions)
Ultrasonic Sensors
