DIEFFENSOR - Scanner

Your Benefit

• Complete (100 %) non-contact measurement
• High accuracy and flexibility due to fine resolution
• Detection and optimisation of material consumption thanks to analysis of longitudinal and cross profile
• Weight per unit area measurement of the entire mat and grid evaluation in selectable resolution
• Foreign object detection for protection against damages (e.g. steel belt protection, hot spots, wet spots, etc.)
• Process-related, systematic deviations are shown and can be reduced or eliminated. In most cases, material, glue and energy can be reduced by at least 1 to 3 %

Function

Compared to conventional traversing measuring systems based on averaging, the DIEFFENSOR measures the material in high resolution and can thus detect minute deviations in the weight per unit area distribution.

Using a clock-pulse generator, the images taken across the production material are put together to form a 100 % picture across and along the production line.

Process fluctuations are indicated by recipe-specific comparison of nominal and actual values. Precise measured values and their clear numerical and graphical representation allow for timely intervention in the production process to ensure consistent product quality while the consumption of material and energy is optimised.

The measured values allow a quick view of the production trend at any time. Long-time evaluations graphically show the effects of changes in production parameters. Reports for further analysis can be generated from the evaluated process data.

Weight Per Unit Area Measurement

The monitoring of the weight per unit area distribution can be configured in many ways and adjusted to the production requirements. Besides cross profiles and a track-related summary of individual sections, values can be averaged over a long time frame to generate long-term trends. Different statistical evaluations are available to analyse the material distribution across and along the production line.
Foreign object detection in the production process

Foreign Object Detection

In different production processes, e.g. the insulating material industry, hot spots can cause severe damage to production equipment due to delayed heat release. Missing material can lead to expensive customer complaints or reduced quality.

With high-resolution evaluation, the DIEFFENSOR is able to detect foreign objects, such as glue lumps, hot spots, wet spots as well as metallic and nonmetallic elements. Even areas that are too light, such as air voids or missing material, can be detected.

The detection of foreign objects or air voids is done by eight threshold values that can be configured independently of each other. Each measurement exceeding threshold values can be allocated to a digital output. Thus, the signals can be directly integrated in the plant control as suitable protection measure. Faulty areas can also be marked in colours. All detected excesses over threshold values are stored in a database for later analysis.

Steel Belt Protection
Software that was specially written for the protection of steel belts allows monitoring of the fibre mat for undesired metallic or non-metallic foreign objects. Visual assistant functions support the operator in defining optimum threshold values for foreign object detection. When foreign objects are detected, the fast signal transfer to the machine control allows the use of steel belt protection measures (e.g. opening the discharge).