METHOD OF DETERMINING A PARAMETER OF A PHYSICAL MODEL

The invention relates to a method of determining a parameter of a physical model representing the electrical behaviour of a composition. The method comprises defining said model by a relationship between at least one electrical property of the composition, a plurality of physical variables of said p...

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Hauptverfasser: KOELMAN JOHANNES MARIA VIANNEY ANTONIUS, DE KUIJPER ANDRE, SANDOR ROBERT KARL JOSEF
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creator KOELMAN JOHANNES MARIA VIANNEY ANTONIUS
DE KUIJPER ANDRE
SANDOR ROBERT KARL JOSEF
description The invention relates to a method of determining a parameter of a physical model representing the electrical behaviour of a composition. The method comprises defining said model by a relationship between at least one electrical property of the composition, a plurality of physical variables of said parameters, and measuring the first electical property of the composition. A sample which is representative for said composition is selected and a second 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 electical properties as calculated from said relationship, said incoherence function being such that independent measurements are wheighted in dependence of their accuracy. The said parameter is determined by minimizing the incoherence function. The first and the second property can be one and the same. Invenţia se referă la o metodă de determinare a unui parametru într-un sistem fizic reprezentând comportarea electrică a unei compoziţii. Metoda constă în determinarea unui model prin stabilirea unei relaţii între cel puţin o proprietate electrică a compoziţiei, o mulţime de variabile fizice a numiţilor parametri, şi măsurând o primă proprietate electrică a acestei compoziţii. Se alege o mostră reprezentativă pentru numita compoziţie, şi se măsoară o a doua proprietate electrică a mostrei, pentru diverse magnitudini, a cel puţin uneia din variabilele fizice. Se alege o funcţie de incoerenţă, definind o diferenţă între proprietăţile electrice măsurate şi proprietăţile electrice calculate prin numita relaţie, această funcţie de incoerenţă fiind astfel că măsurători independente sunt ponderate în dependenţă de exactitatea lor. Numitul parametru este determinat prin minimizarea funcţiei de incoerenţă. Prima şi a doua proprietate pot fi aceleaşi proprietăţi. ŕ
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subjects DETECTING MASSES OR OBJECTS
GEOPHYSICS
GRAVITATIONAL MEASUREMENTS
INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES
MEASURING
PHYSICS
TESTING
title METHOD OF DETERMINING A PARAMETER OF A PHYSICAL MODEL
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