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Bridge method for studying the spectra of currentf uctuations in tungsten flaments at the frequency range 1,5∙10–5–5∙10–1 Hz
https://doi.org/10.32446/0368-1025it.2021-5-18-25
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.
About the Authors
Y. A. Zakharov
Bashkir State University
Russian Federation
Russian Federation
Yuriy A. Zakharov
Ufa
S. S. Gots
Bashkir State University
Russian Federation
Russian Federation
Sergey S. Gots
Ufa
R. Z. Bakhtizin
Bashkir State University
Russian Federation
Russian Federation
Rauf Z. Bakhtizin
Ufa
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Review
For citations:
Zakharov Y.A., Gots S.S., Bakhtizin R.Z. Bridge method for studying the spectra of currentf uctuations in tungsten flaments at the frequency range 1,5∙10–5–5∙10–1 Hz. Izmeritel`naya Tekhnika. 2021;(5):18-25. (In Russ.) https://doi.org/10.32446/0368-1025it.2021-5-18-25
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