A method analyzing the dielectric relaxation spectra of mixtures by decomposition into Debye elementary domains. Application to the study of the water spectrum

The authors propose a method of spectral analysis which consists of decomposing the experimental dielectric relaxation spectra of mixtures into a sum of elementary spectra of the Debye type. The technique of this approach of spectral parameters yields a noticeable improvement on the usual methods. After dealing with a great number of theoretical examples, so as to put the computation programs through a test, the study of water was carried out at 20°C. In this case, the experimental spectrum was reconstituted from three Debye constituents.