ДИСТАНЦИОННОЕ ИЗМЕРЕНИЕ СВЕРХМАЛЫХ РАЗНОСТЕЙ ТЕМПЕРАТУРЫ ПОСРЕДСТВОМ ДИФФЕРЕНЦИАЛЬНЫХ РЕЗИСТОРНЫХ ТЕРМОДАТЧИКОВ

An actual task is fixing and quantitative estimation of small difference of temperatures in the nearby areas of space in some branches of science and technique. A purpose of this work is consideration of circuit solutions directed on minimization of influence of noise (fields), parasite impedances,...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Datum:2014
Автори та афіліації:
  • В.Г. Мельник — Институт электродинамики НАН Украины, пр. Победы, 56, Киев-57, 03680, Украина
  • А.И. Новик — Институт электродинамики НАН Украины, пр. Победы, 56, Киев-57, 03680, Украина
  • М.П. Рубанчук — Институт электродинамики НАН Украины, пр. Победы, 56, Киев-57, 03680, Украина
  • А.Д. Василенко — Институт электродинамики НАН Украины, пр. Победы, 56, Киев-57, 03680, Украина
Ключові слова:keywords
Hauptverfasser: Мельник , В.Г., Новик , А.И., Рубанчук , М.П., Василенко , А.Д.
Format: Artikel
Sprache:Ukrainisch
Veröffentlicht: Інститут електродинаміки НАН України, Київ 2014
Schlagworte:
Online Zugang:https://techned.org.ua/index.php/techned/article/view/1026
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
Назва журналу:Technical Electrodynamics
Завантажити файл: Pdf

Institution

Technical Electrodynamics
Beschreibung
Zusammenfassung:An actual task is fixing and quantitative estimation of small difference of temperatures in the nearby areas of space in some branches of science and technique. A purpose of this work is consideration of circuit solutions directed on minimization of influence of noise (fields), parasite impedances, and also analysis of basic errors, accompanying the similar measuring. A bridge measuring circuit, working on an alternating current with the use of differential sensors on the basis of miniature thinfilm resistance thermotransducers, providing the best noise stability for the measuring of weak thermal streams, is offered. Analysis of the obtained expressions shows that in the investigated scheme resistance of cable wires are not entered additive errors in the measurement. A relatively small multiplicative error (about 0,1 %), arising from the impact of these and other resistance on the currents in the bridge branches, is constant and can be considerably reduced well-known methods of errors correction. References 7, figures 2.