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Shadow2018-10-01T15:02:45+02:00

Shadow

SHADOW is a readily used direct measuring system for the systems in which films up to 3,5mm are produced.

SHADOW works on the principle of laser occlusion over a measuring roller. It is a direct measuring system, and it is, therefore, independent of the properties of the film.

TECHNICAL DETAILS

measuring principle

The sensor head contains 2 sensors: a laser shading sensor and an eddy current sensor. The shading sensor sends laser beams over the measuring roller and the film to be measured. A receiver (line scan camera) detects the shading by the film and by the roller. The eddy current sensor permanently measures the propriety of the sensor head to the measuring roller. The result of both measurements gives directly the thickness of the film.

calibration

No calibration is necessary. The measurment is independent of film properties.

Technical Specifications Shadow
sensor system laser occlusion/eddy current
Max. thickness 3,5 mm
measured cleaving 5,5 mm
sensor diameter 30 mm
measuring spot diameter 0,5 mm
sensor resolution 0,5 µm
accuracy ≤ 3,0 μm
measuring speed 10 – 300 mm/s adjustable
process speed 10 – 500 mm/s adjustable
calibration not mandatory
diameter of the reference roller 200 mm

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