用异步采样法比较工频阻抗

CPEM 2010 Pub Date : 2010-06-13 DOI:10.1109/CPEM.2010.5543768

L. Callegaro, V. D’Elia, E. Gasparotto

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引用次数: 4

摘要

我们提出了一种测量装置，用于比较工频下的四端阻抗，该装置基于对串联阻抗上的电压降进行同步采样。用正弦拟合技术确定复阻抗比。阻抗可以有不同的模量和相位角;该设置针对模数低于100 Ω的阻抗进行了优化。虽然测量不确定度的评估仍在进行中，但预计将优于l×l0−4。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Impedance comparison at power frequency by asynchronous sampling

We present a measurement setup for the comparison of four-terminal impedances at power frequency, based on synchronous sampling of the voltage drops on the impedances placed in series. Complex impedance ratio is determined with a sine-fitting technique. The impedances can have different moduli and phase angles; the setup is optimized for impedances having moduli ranging below 100 Ω. Although an evaluation of measurement uncertainty is still in progress, it is expected to be better than l×l0−4.

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CPEM 2010

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