Sensors
High-resolution sensor systems for optimum production results
Sensors are an absolute prerequisite for effective production processes. High-speed sensors register such parameters as thickness, moisture/humidity and speed, thereby providing for reliable quality assessment.
Depending
on the requirement, different sensors can be used. Overview:
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Isotope
Transmission Sensor
Isotope
transmission measurement is a contact-free measuring method, measuring the
basis weigth (g/m2). It uses the fact that all radiation is decreased when
passing through materials.
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Isotope
Backscatter Sensor
Isotope
transmission measurement is a contact-free measuring method, measuring the
basis weigth (g/m2). It uses the fact that all radiation is decreased when
passing through materials.
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Laser
Sensor
The sensor
uses the triangulation measuring method. A focussed infrared beam creates a
light spot on the measured object. The position of this spot of light is
recorded by a PSD/CCD detector in the sensor, making it possible to calculate
the distance to the object.
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Ultrasonic
Sensor
The sensor
uses the impulse echo measuring method, i.e. an ultrasonic impulse is sent,
reflected by the measured object and received again. The impulse runtime is
used to determine the distance between the measured object and the sensor.
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X-Ray
Sensor <5kV
When the
transmission method is used for measuring, emitter and detector are facing each
other, with the measured material in between. Radiation is weakened by the
measured object, and the degree of weakening is subject to the density,
thickness and composition of the measured object.
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Camera-based
Sensor
The DELTA
MASTER 3 sensors are based on the principle of optical triangulation. A
semi-conductor laser projects a fine measuring line onto the surface of the
material. The image of this line is recorded by a geometrically ultra-stable
matrix CCD camera and evaluated by digital image processing methods.
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IndiCam
100® / IndiTherm®
IndiCam
100® provides a basis weight or thickness measurement based (IndiTherm®) on a
temperature measurement with thermal imaging cameras. The
measuring principle is based on the analysis of the temperature course of
materials at chill rolls or heating rolls, which is captured with millimeter
accuracy.
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IndiSpectro®
The
measurement is based on the comparison of the optical coating thicknesses with
the wave lengths of the light. Light irradiated on a transparent layer is
partially reflected at the upper as well as at the lower interface.
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