METHOD OF MEASURING AMOUNT OF EACH COMPONENT OF MULTI-COMPONENT MEDIUM IN CONTAINER Russian patent published in 2017 - IPC G01F23/28 

FIELD: physics, measurement technology.

SUBSTANCE: invention relates to measurement technology and can be used to measure component by component amount (volume) of a multi-component medium in a container, arbitrarily distributed inside said container. In particular, the invention can be used to measure the amount of each component of a multi-component medium in a container in zero-gravity conditions. Disclosed is a method of measuring the amount of each component of a multi-component medium in a container, which is arbitrarily distributed inside said container and containing n+1 components, wherein a section of a double-wire long line with uniform electromagnetic field distribution along it is placed uniformly in the volume of the container, electromagnetic oscillations are excited therein and resonance frequency thereof is measured. The method is characterised by that it further comprises placing n sections of a double-wire long line uniformly in the volume of the container, wherein all sections of the double-wire long line have on their wires a homogeneous dielectric coating, different from others, exciting in said n sections of the double-wire long line electromagnetic oscillations and measuring resonance frequency of each of them, performing combined functional transformation of the measured resonance frequencies of all n+1 sections of the double-wire long line and determining the amount of each component according to the relationship , where k=1, 2, …, n is the component number, D=det[a_ik] is the equation determinant; D_k is the determinant obtained from D after substituting elements of the k-th column with respective free terms b₁, b₂, …, b_n; is effective dielectric constant of the k-th component of the i-th channel; is the effective dielectric constant of the n+1-th component - the initial medium in the reservoir - i-th channnel; ƒ_i is the resonance frequency of the i-th section of the double-wire long line, i=1, 2, …, n; is the value of ƒ_i in the absence of a multi-component medium in the container, wherein the amount V_n+1 of the n+1-th component is determined from the difference between the volume of the container and the total volume V₁, V₂, …, V_n of n components.

EFFECT: method enables to measure the amount of each component of a multi-component medium in a container.

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