用开放式同轴线测量生物样品的介电常数

Q3 Engineering

Progress In Electromagnetics Research B Pub Date : 2020-07-14 DOI:10.2528/PIERB12022906

J. Bobowski, T. Johnson

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引用次数: 79

摘要

我们以前报道过废弃活性污泥的复介电常数和直流电导率。测量范围从3MHz到40GHz，使用开放式同轴传输线进行。尽管这项技术在文献中已经得到了很好的证实，但我们发现有必要结合几篇论文中的方法，使用开放式同轴探针来可靠地表征具有高直流电导率的生物样品。在这里，我们提供了一套详细实用的指南，可用于确定生物样品在宽频率范围内的介电常数和电导率。由于电极极化效应，导电样品的低频测量需要校正以提取固有的电学性质。我们描述了一种实用的校正方案，并使用控制样本验证了其可靠性。

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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PERMITTIVITY MEASUREMENTS OF BIOLOGICAL SAMPLES BY AN OPEN-ENDED COAXIAL LINE

We previously reported on the complex permittivity and dc conductivity of waste-activated sludge. The measurements, spanning a frequency range of 3MHz to 40GHz, were made using an open-ended coaxial transmission line. Although this technique is well established in the literature, we found that it was necessary to combine methods from several papers to use the open-ended coaxial probe to reliably characterize biological samples having a high dc conductivity. Here, we provide a set of detailed and practical guidelines that can be used to determine the permittivity and conductivity of biological samples over a broad frequency range. Due to the electrode polarization efiect, low frequency measurements of conducting samples require corrections to extract the intrinsic electrical properties. We describe one practical correction scheme and verify its reliability using a control sample.

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来源期刊

Progress In Electromagnetics Research B Engineering-Electrical and Electronic Engineering

CiteScore

2.70

自引率

0.00%

发文量

期刊介绍： Progress In Electromagnetics Research (PIER) B publishes peer-reviewed original, comprehensive and tutorial review articles on all aspects of electromagnetic theory and applications. It is a new journal in 2008, and freely available to all readers via the Internet. Manuscripts submitted to PIER B must not have been submitted simultaneously to other journals. Authors are solely responsible for the factual accuracy of their articles, and all articles are understood to have received clearance(s) for publication.