The method of the resonance - spectroscopy for the analysis of statistical properties of samples

摘要

The invention refers to a method of resonance spectroscopy for the analysis of statistical properties of samples, comprising the following steps:a) recording of a complex resonance frequency spectrum of each sample by means of phase sensitive quadrature detection;b) numerical differentiation of the recorded complex resonance frequency spectra versus frequency;c) determination of the absolute value of each differentiated complex resonance frequency spectrum (=fingerprint);d) allocation of each fingerprint to a point of a multidimensional point set;e) performing a pattern analysis of the generated points for characterizing the statistical properties of the samples.;The inventive method tolerates unintended variances of measurement in the recorded resonance frequency spectra, in particular caused by phase errors, and allows reliable automated spectra analysis.