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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.
Shadow is a non–nuclear technology that does not require licensing or protection guards.
Shadow is insensitive to material properties, transparency, colour and opacity. Shadow can measure total thickness of single, multilayer and embossed materials.
Applications Include:
Extruded sheet, Foam, Composites, Multilayer/embossed materials, Calendared sheet, Rubber, Coated Substrates, Non-woven.
Shadow are available in widths of 500 mm to 8 meter
Ultra-precise thickness measuring with an accuracy of ≤ 3 µm
Shadow is suitable for the material thickness of up to 3.5 mm
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 distance 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 measurement 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 |
| Repeatability | ≤ ± 1,5 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 |
Our experts are always available for your inquiries and technical consultation. Please contact us anytime at our HQ or refer to local SBI Mechatronik representatives in your country!
Johannes will develop a fitting solution for your requirements based on our products and services.
j.scherleitner@dev.sbi-mechatronik.com
tel. +43 (0) 2952 50701
Roman is your expert for technical questions, application development and custom solutions.
r.geist@dev.sbi-mechatronik.com
tel. +43 (0) 2952 50701
SBI Mechatronik GmbH
Tel.: +43 295250701
Kaplanstraße 12
2020 Hollabrunn – Austria
