Surface inspections have long been standard in the automotive sector. Measuring the paint layer thickness of a component is a special task, since non-destructive measurement is difficult. For this purpose, a random sample of the batch is mechanically divided in order to then be able to carry out the necessary measurements and tests. Tested parts are therefore to be marked as scrap even if the measured values ​​are within the tolerance. The measurement of a complete layer structure takes place via terahertz contactless in seconds,

where the thickness of each individual layer is output as a separate measured value. At the same time, the radar transmission and the radar reflection can be output for each individual layer and for the overall structure. Measurements can be made with an accuracy of up to 0.1 µm or 0.1 dB, which means that even minimal deviations from the target value become visible. All layers that are optically transparent to terahertz radiation, such as plastics, adhesives, conductive coatings, etc. can be measured,

The evaluation software breaks down the recorded signal spectrum, allowing the calculation of the layer thickness of a single layer, complex structures with up to seven layers, and even the thickness of the carrier substrate up to several millimeters. In contrast to conventional methods, terahertz technology enables a faster and more efficient solution for component testing that is carried out without any damage to the component. Thanks to our over 30 years of experience in the field of measurement and testing technology, we ensure the optimal integration of our innovative measurement technology into your company.