Page 652 - Sensors and Systems - North American Catalog
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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
3
.3
3
.3
Ultraschallsensoren,
Ultrasonic Sensor Accessories
3
.4
Ultrasonic Sensors,
Speciality Models,
cylindrical
Ultrasonic Sensors,
Speciality Models,
rectangular types
650
Germany: +49 621 776-4411
Refer to General Notes Relating to Product Information
Pepperl+Fuchs Group
USA: +1 330 486 0001
Singapore: +65 6779 9091
Copyright Pepperl+Fuchs
Ultrasonic Sensors
Introduction
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 sensor
to another.
You can download SONPROG in the download area at
.
us or by using 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
programming 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 sensor 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
at
or by using a direct
link on the product page for each sensor with an IO-Link.
5. Resolution/measurement accuracy
Resolution
Pepperl+Fuchs UC... series ultrasonic sensors are equipped with an
integrated 12-bit DA converter. A resolution of 12 bits corresponds to 4096
steps. The echo time of an ultrasonic series is determined with a resolution
of approximately 1 µs which corresponds to a physical resolution of
approximately 0.18 mm. This maximum sensor resolution is available if the
measuring window is less than or equal to approximately 750 mm.
Up to this window size, the resolution is solely dependent on the clock rate
of the microcontroller. The DA converter controls the sensor resolution if a
larger measuring window is selected. It can then be calculated using the
following formula:
(A2 - A1) / 4096
where A1= lower limit, A2= upper limit
Example:
A UC4000-30GM-IUR2-V1 sensor is set up with the following parameters:
(A2) upper limit:
3500 mm
(A1) lower limit:
800 mm
In this application, the physical resolution of the sensor amounts to
(3500 mm - 800 mm) / 4096 = 0.66 mm
Measurement accuracy/characteristic deviation
To determine the absolute accuracy of the measured value for an ultrasonic
sensor, the following influencing factors must be taken into consideration:
•
Temperature
•
Atmospheric pressure
•
Relative humidity
•
Atmospheric turbulence
•
Hot spots in the ambient air around the sensor or the object
•
Sensor at operating temperature state
Considering these influences, a repeatability and linearity of >0.2% can be
achieved.
