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