DIELECTRIC PERMITIVITY MEASURING METHOD FOR NEMATIC LIQUID CRYSTALS IN MICROWAVE FREQUENCY RANGE
https://doi.org/10.18384/2224-0209-2012-3-587
Abstract
This article is focused on the method of varying the sample thickness necessary for
measuring the way the dielectric permittivity of a studied liquid crystal depends on temperature
at 30 HHz and at atmospheric pressure. The method is based on measuring the attenuation
coeffi cient of the electromagnetic wave while it passes through the studied substance which
is poured into a section of the wave conductor. The article provides a detailed description of
the experimental setup and the procedures, as well as observational error computations and
control measurements of the dielectric permittivity of butyl acetate and bensole.
measuring the way the dielectric permittivity of a studied liquid crystal depends on temperature
at 30 HHz and at atmospheric pressure. The method is based on measuring the attenuation
coeffi cient of the electromagnetic wave while it passes through the studied substance which
is poured into a section of the wave conductor. The article provides a detailed description of
the experimental setup and the procedures, as well as observational error computations and
control measurements of the dielectric permittivity of butyl acetate and bensole.
References
1. Ахадов Я. Ю. Диэлектрические параметры чистых жидкостей. - М., 1999.
2. Брандт А. А. Исследование диэлектриков на сверхвысоких частотах. - М., 1963.
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