SU1383171A1 - Cell for measuring dielectric characteristic of materials - Google Patents

Abstract

The invention relates to microwave microwave measurement technology and provides the ability to measure the magnetic characteristics of samples. The cell is a rectangular waveguide pass-through resonator (DFR) 1, on the middle line of whose wide wall there is an opening 2 for introducing a sample closed by a plug 3 of conductive material. The sample holder, made in the form of a thin conductive rod 4, is installed in PFPR 1 perpendicular to its narrow wall and provided at one end with a cup 5 of a diel. material. The dimensions of the cup 5 and the through hole 7 in its bottom are such that the material sample 6 almost does not come into contact with it. First, the resonant frequency and quality factor of the DPRD 1 in the absence of sample 6 are measured. Then, using a tape 8 of conductive material on which the other end of the conductive rod 4 is rigidly fixed, the cup 5 is placed under the hole 2 and the material sample 6 is loaded through it. Sample 6 in the sample holder using a belt 8 moved by the friction shaft 12 in the guide grooves 10 is converted into a maximum of half a field, and the resonant frequency and quality factor are measured. The diagrams are calculated from them. sample parameters. When moving an ejection to the maximum of a magician, the field is measured by its magn. specifications. 3 il. from € (L from 00 from

Description

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Claims (1)

Claim A cell for measuring the dielectric characteristics of materials, containing a rectangular waveguide passage resonator, in the wall of which a hole for introducing samples is made, in which a plug of conductive material is placed, the sample holder is made in the form of a thin metal rod perpendicular to a narrow wall, at one end of which a cup of low loss dielectric, in the bottom of which an additional hole is made, while the cross-sectional area of the additional hole is at least 3/4 the cross-sectional area of the sample, and the cup height is not more than 1/10 of the height of the sample, which differs in that, in order to ensure the possibility of measuring the magnetic characteristics of the samples, the hole for introducing the samples of the sample is filled in the wide wall of the rectangular waveguide passage resonator, which is equipped with a tape of conductive material rigidly connected to the end of a thin metal rod opposite from the end to the cup, and having electrical contact with the narrow wall of a rectangular waveguide passage resonator, in which transverse slots are made for input and output of the tape from the conductive material into and out of the rectangular waveguide feed-through resonator, moreover, in wide walls at their junction with a narrow wall in which the transverse slots are made, guide grooves are made in which the tape is made of conductive material and which have a length equal to the distance from one transverse slit to another, and the dimensions of the guide grooves and transverse slots provide a slip-resistant fit of the tape of conductive material, and mechanisms still move the tape of conductive material is disposed outside of the rectangular waveguide cavity passage. Fig.Z