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Telecommunications and Radio Engineering
SJR: 0.202 SNIP: 0.2 CiteScore™: 0.23

ISSN Печать: 0040-2508
ISSN Онлайн: 1943-6009

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Telecommunications and Radio Engineering

DOI: 10.1615/TelecomRadEng.v73.i11.50
pages 993-1003

CONTROL AND STABILIZATION OF TEMPERATURE (0.8÷300 K) IN THE CRYODIELECTROMETER OF A GIGAHERTZ FREQUENCY BAND

R. V. Golovashchenko
A. Usikov Institute of Radio Physics and Electronics, National Academy of Sciences of Ukraine, 12, Academician Proskura St., Kharkiv 61085
V. N. Derkach
A. Usikov Institute of Radio Physics and Electronics, National Academy of Sciences of Ukraine, 12, Academician Proskura St., Kharkov 61085
M. K. Zaetz
A.Ya. Usikov Institute for Radiophysics and Electronics of the National Academy of Sciences of Ukraine 12, Academician Proskura St., Kharkiv 61085, Ukraine
V. G. Korzh
A. Usikov Institute of Radio Physics and Electronics, National Academy of Sciences of Ukraine, 12, Academician Proskura Str., Kharkiv 61085, Ukraine
A. S. Plevako
A.Ya. Usikov Institute for Radiophysics and Electronics of the National Academy of Sciences of Ukraine 12, Academician Proskura St., Kharkiv 61085, Ukraine
S. I. Tarapov
O.Ya. Usikov Institute for Radio Physics and Electronics, National Academy of Sciences of Ukraine 12, Academician Proskura St., Kharkiv 61085, Ukraine; Kharkiv National University of Radio Electronics 14, Nauka Av, Kharkiv 61166, Ukraine; V. Karazin National University of Kharkiv, 4 Svobody Sq., Kharkiv 61077, Ukraine

Краткое описание

A problem of accurate temperature stabilization and measurement arises during the development of low-temperature radiospectrometers designed for material dielectric parameter measurement in the millimeter waveband and in the wide temperature range. Thermometers used for measurement of low and ultra-low temperatures are usually based on the temperature dependence of particular material properties. Electric resistance thermometers are the most suitable for designing the circuits for temperature measurement and stabilization under the above-mentioned conditions. The temperature controller-stabilizer, being a precise automated block, designed for measurement and stabilization of temperature of the disk dielectric resonator in the 0.8 K÷300 K temperature range is used in the cryodielectrometer of a gigahertz band. The four-wire circuit with alternating-current supply to the thermal sensors is applied. The specialized resistive sensors with different-sign temperature resistance coefficients are tested. The accuracy of resistance detection of about 0.05% is provided. The accuracy of temperature stabilization is higher than ±0.01 K. Results of test experiments on the measurement of low-loss dielectric material parameters at low temperatures are presented.