LUMI Series • Luminescence Sensors Product Information
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(2004-09-24) LUMI Series / Page 1 of 4
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LUMI Series
Luminescence Sensors
Luminescence sensors are applied where adhesives,
sealing compounds, special liquids, or other materials are
combined with fluorescent substances. When illuminated
with UV-light, these fluorescent additives will light up and
emit light in the visible spectrum (e.g. red, orange, yellow,
green, blue).
In the LUMI Series sensors, modulated UV light is employed
to suppress outside light sensitivity. The special optical
arrangement of optical emitter and receiver (radial or linear
emitter) allows operating distances of up to 100 mm.
The sensors are equipped with an RS232 interface, the
Windows® software is included in the delivery.
Characteristics
Parameterization under Windows® with software
LR-Scope V2.3
The sensors can easily be set with the help of a Windows® user
interface in which the sensor signals are displayed in numerical and
graphical form; the user interface also provides various software
algorithms and setting parameters.
Parameters such as e.g.
- Threshold (sensitivity)
- Switching hysteresis
- Laser power mode (static or dynamic)
- Averaging
- Polarity
can be set with the software.
Functional principle of the sensor
In the LUMI Series
luminescence sensors, modulated UV light is
directed onto the object to be inspected. If there are fluorescent
color particles on the object surface, the UV light, depending on
the type of color particle, is converted into a color in the visible
wavelength range. Different color filters can be used here to
respond to the respective color range.
The output of the sensor provides an analog signal that informs
about the intensity of the fluorescent color. Furthermore, a switching
signal is provided at the sensor connector.
The UV transmission power can be adjusted by means of an
integrated potentiometer.
