Method, device and use of the device for non-destructive quantitative determination of layer thicknesses of a body with layers

摘要

the invention betrift a procedure for determining the layer thickness of a particular pru00fcfku00f6rpers layers (4), an outer layer (1) and a base layer (2) arranged in the test, and the covering layer and the base layer have different magnetic properties and stoffzusammensetzung characteristics with the process steps:- create a magnetic wechselfeldes;measurement of magnetic field strength.- measurement of the tangential oberwellengehalts of zeitsignals necessary, depending on the magnetic field strength.- measurement of u00fcberlagerungspermeabilitu00e4t in dependence on the magnetic field strength anddetermine the thickness of at least one of the layers through a statistical analysis, on the basis of the measured values of the tangential oberwellengehalts of zeitsignals necessary and u00fcberlagerungspermeabilitu00e4t.furthermore, the invention relates to a device suitable for carrying out the method and use of the device for determining the thickness of a pru00fcfku00f6rpers (4), with at least one of the layers (1), (2), (3) of the pru00fcfku00f6rpers (4), in particular the layer (1) of perama gnetisch or diamagnetisch.