Page 10
Functional Principle, Technical Data
confocalDT 24x1
2.3
Glossary
SMR Start of measuring range. Minimum distance between sensor surface and target
MMR Midrange
EMR End of measuring range (start of measuring range + measuring range)
Maximum distance between sensor face and target
MR
Measuring range
100 %
50
0
Sensor
SMR
Target
Measuring range (MR)
SMR
MMR
EMR
Displacement
Signal
Fig. 2 Measuring range and output signal at the controller
2.4
Operating Modes
-
Distance measurement for reflecting (mirroring and diffuse) surfaces,
-
thickness measurement of transparent objects
covering ranges between just a few tenths of a micrometer to several millimetres.
2.5
Sensors
The controller can be operated with up to 20 different sensors. The required calibration
tables are stored within the controller.
The sensor is a passive element in the measuring system: it contains neither moving nor
heat-generating parts which might affect measuring accuracy due to thermal expansion
in the sensor.
i
Protect the ends of the sensor cables (optical fibers) and the sensor lens from dirt
and contamination.