Bridge method for studying the spectra of current fluctuations in tungsten filaments at the frequency range 1.5∙10–5–5∙10

Bridge method for studying the spectra of current fluctuations in tungsten filaments at the frequency range 1.5∙10–5–5∙10–1 Hz

Published:2021 Issue:5 Volume: Page:18-25
ISSN:0368-1025
Container-title:Izmeritel`naya Tekhnika
language:
Short-container-title:Izmer. Tekhn.

Author:

Zakharov Yuriy A.¹^ORCID,Gots Sergey S.¹,Bakhtizin Rauf Z.¹^ORCID

Affiliation:

1. Bashkir State University

Abstract

The problem of the absence of methods for measuring low-frequency fluctuation processes at high temperatures is considered. An original bridge method is proposed for measuring the spectra of low-frequency current fluctuations in tungsten filaments of electric lamps in a controlled temperature range of 300–2700 K. Application of the bridge measurement scheme allows us to reduce the influence of degradation processes in the filament and the power source's own noise on the measurement results by several orders of magnitude. Spectral analysis of low frequency current fluctuations is performed at the frequency range 1.5∙10–5–5∙10–1 Hz using an automated setup based on a personal computer under the control of specially developed software.

Publisher

FSUE VNIIMS All-Russian Research Institute of Metrological Service

Subject

General Medicine

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1. Experimental Study of the Spectral and Correlation Characteristics of Low-Frequency Fluctuations in Tungsten Filaments;Journal of Communications Technology and Electronics;2022-10