id: 31389
Назва: Mathematical Model and Practical Implementation of Transformer Oil Humidity Sensor
Автори: Hraniak V.F., Matviychuk V.A., Kupchuk I.M.
Ключові слова: transformer oil, humidity, measurement, relative dielectric constant, phase difference.
Дата публікації: 2022-08-28 14:50:37
Останні зміни: 2022-08-28 14:50:37
Рік видання: 2022
Аннотація: The mathematical dependence of the integral dielectric constant of transformer oil on its humidity is obtained. It is shown that the increase in humidity in the range from 0% to 0.5%, which corresponds to its allowable change, is accompanied by a monotonic increase in the integral dielectric constant along the nonlinear dependence. The design of a high-frequency humidity sensor in the form of a band asym-metric waveguide is proposed, which transforms the latter into a phase shift of the information wave. The mathematical model is developed and the transformation equation is obtained. It has been experimentally established that the total relative error, which consists of the error of this model, the instrumental error of the hard-ware and the subjective error of removing the measured information does not exceed 2%. The article is devoted to solving the problem of reliability of technological equipment and is part of an interdisciplinary study on the development of a set of energy efficient equipment for feed preparation, which is performed on the basis of laboratories of Vinnytsia National Agrarian University.
URI: http://repository.vsau.org/repository/getfile.php/31389.pdf
Тип виданя: Статті Scopus
Видавництво: Electronics. 2022. Vol. 26 (1). P. 3-8.
Розташовується в колекціях :
Ким внесений: Адміністратор
Файл : 31389.pdf Розмір : 6398575 байт Формат : Adobe PDF Доступ : Загально доступний
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