Do you have unsolved problems in your production when testing layer thicknesses or edge zones? Then get in contact with us. We would be pleased to invite you to an initial consultation and show you the potential of photothermal measurement technology.
This is a non-destructive and contactless method for edge zone diagnostics. It is used, among other things, in the areas of case hardness (EHT) and hardness profile determination, layer thickness measurement, grinding fire detection, porosity determination, detection of delamination,
This is a non-destructive and contactless method for edge zone diagnostics. It is used, among other things, in the areas of case hardness (EHT) and hardness profile determination, layer thickness measurement, grinding fire detection, porosity determination, detection of delamination, quality inspection of welded joints, detection of defects and contact pattern inspection.
The photothermal measuring methods are based on a time-modulated heating of a sample surface. The temperature gradient thus induced leads to a diffusion of heat in the sample and in the surrounding medium. The heat flow and the associated temperature distribution is influenced by the material properties heat conduction, density and specific heat capacity as well as by the composition and geometry of the sample.
Deviations from the geometry, variation of thermal parameters due to structural changes, defects or material inhomogeneities influence the heat flow and thus the temperature response to the periodic or pulsed excitation. These deviations can be measured by a time or phase-resolved measurement and thus be used for quality assurance in the sense of a 100% inspection.
