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Анализ спектров напряжения на измерительной обмотке трансформаторного вихретокового преобразователя

Анализ спектров напряжения на измерительной обмотке трансформаторного вихретокового преобразователя

Abstract

Проведен спектральный анализ сигналов измерительной обмотки трансформаторного электромагнитного преобразователя при наличии паразитных помех в схеме измерения. Выделены основные компоненты паразитных шумов, оказывающие влияние на точность измерения полезного сигнала. К таким компонентам здесь относится фликкер-компонента, белый шум, а также паразитная наводка. Результаты работы позволяют повысить точность измерений сигналов электромагнтными, в том числе вихретоковыми преобразователями. Spectral analysis of measured voltage on pick-up coil of eddy current sensor in case of noise presence in a signal is made. Main components of noise that influence the measured voltage are found. Here such components are: white noise component, flicker noise component and a component which appears because of induced by some source electromotive force. The influence of noise on measured signal should always be considered in case of small values of signal that is true for example during control of electromagnetic properties of spiral ferromagnetic wire.

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Keywords

noise, fourier transform, трансформаторный электромагнитный преобразователь, частота Найквиста, Nyquist frequency, преобразование Фурье, шум, eddy-current sensor

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
Average
Average
Green