E+L measuring systems reliably and precisely measure thickness, profile and length, check the surface for defects, or verify printed samples or images. Regardless of whether this check has to be carried out in a warm or cold environment or under adverse conditions, we will find a solution for your task within our broad, modular portfolio.
EL-THICKNESS is a system for contactless determination and continuous monitoring of material thicknesses on continuous webs. The modular system is available in different mechanical versions and offers the perfect solution for every application.
With one or more sensors it is possible to measure against measurement rollers or calender rollers (for reference measurements) or to position opposing pairs of sensors (for differential measurements) in a defined position or to move them across the material with the aid of a granite C-frame or a granite O-frame.
Thanks to the modular layout of the systems, it is possible to use different sensor technologies without changing the basic mechanical setup. These include laser triangulation sensors, chromatic-confocal sensors, interferometric sensors, or combination sensors featuring laser and eddy current technology.
- Precise determination of web thickness using chromatic-confocal, laser triangulation or interferometric sensors
- Lower number of rejects, unrivaled quality control
- Minimized thermal expansion and improved vibration resistance
- Highest accuracy through interval-dependent in-situ alignment
- Measurement data for thickness control
- Real-time measurement
- Smart technologies for drift compensation
- Remote operation and maintenance via Ethernet possible (WBM)
More information
| Laser triangulation | Chromatic-confocal | Interferometric | |
Accuracy Depending on the application and material used | + (up to ± 3 μm) | ++ (up to ± 0.5 μm) | +++ (less than ± 0.5 μm) |
Sensor scanning rate Measured value output to PLC below 1 kHz | + (10,000 Hz) | ++ (4,000 Hz) | +++ (70,000 Hz) |
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| Example application | Thickness measurement on all opaque films/foils, glossy/nonglossy surfaces and rubber materials | Total thickness measurement for transparent to opaque films/foils and glossy/non-glossy surfaces (limited layer thickness measurement) | Total thickness measurement for transparent to opaque films/foils and glossy/non-glossy surfaces (limited layer thickness measurement) |
