校准
时域
电介质
同轴
散射参数
介电常数
电子工程
可靠性(半导体)
材料科学
观测误差
计算机科学
工程类
数学
电气工程
光电子学
物理
量子力学
统计
功率(物理)
计算机视觉
作者
Mingye Shao,Xiaobin Li,Zhengguang Liu,Xingyu Liang,Lei Lin,Hao Fan,Jinghui Xu
出处
期刊:IEEE Transactions on Instrumentation and Measurement
[Institute of Electrical and Electronics Engineers]
日期:2022-01-01
卷期号:71: 1-8
被引量:7
标识
DOI:10.1109/tim.2022.3150850
摘要
The dielectric method by open-ended coaxial probe owns the advantages of simple structure and nondestructiveness. It is widely applied in the dielectric measurement of liquid solutions and semisolid mediums. Noticeably, the calibration directly affects the accuracy of the measurement. In order to solve the problem of complicated operation and the difficulty in preparation by the traditional three-load calibration method, this article conducts the error model analysis based on the scattering parameter matrix and proposes a time-domain calibration method. Under time-domain conditions, this method only needs one open-circuit load to extract three calibration error parameters through time window gating. The reliability of the time-domain calibration method is verified by simulative comparison, comparison of the measured complex permittivity of absolute ethanol solution with the theoretical value, and comparison of sodium chloride solution’s complex permittivity with the results of three-load calibration. The consistency of these three comparison results shows that the new method can provide technical support for the dielectric measurement by an open-ended coaxial probe.
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