This work presents a method to determine material parameters of pulse thermography data transformed form the time domain into the frequency domain. The procedure for determining the material parameters is based on a 1D solid model. At first a physically correct and piecewise continuous trial function is fitted to the measured temperature curve in the time domain. At next the trial function is transformed in the frequency domain by Integral Fourier transformation. In the frequency domain the Green's function method is used to solve the heat conduction equation analytically. To determine material parameters of the inspected specimen, the phase curve of the analytical solution of the heat conduction equation is fitted to the phase curve of the transformed trial functions. Using this method, the parameters ω0, B1 and H can be determined which correspond to the material parameters L, and k as well as the heat transfer coefficients h1 and h2.
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