DETERMINING PHYSICAL MODEL PARAMETER VALUE USING INCOHERENCE FUNCTION AND SAMPLE MEASUREMENTS

摘要

A method of determining a parameter of a physical model representing the electrical behavior of a composition is provided. The method comprises defining said model by a relationship between the electrical properties of the composition, a plurality of physical variables of the composition and said parameter, and measuring an electrical property of the composition. A sample which is representative for said composition is selected, and an electrical property of the sample is measured for various magnitudes of at least one of said physical variables. An incoherence function is selected, defining a difference between the measured electrical properties and the electrical properties as calculated from said relationship, said incoherence function being such that independent measurements are weighted in dependence of their accuracy. The parameter is determined by minimization of the incoherence function.