基于连续波太赫兹反射法的水分变化非接触检测

2020 45th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz) Pub Date : 2020-11-08 DOI:10.1109/IRMMW-THz46771.2020.9370990

S. Hashizume, Y. Monnai

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引用次数: 0

摘要

我们提出了一种使用连续波太赫兹反射法测量样品含水量的方法。利用矢量网络分析仪(VNA)将300 GHz频段的太赫兹波照射到湿样品上，测量了样品的复反射系数。通过分析复反射系数的变化，可以观察到含水率的时间变化。通过多反射模型拟合测量结果，实验证实了纸样上水分变化的观测结果。

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Non-contact inspection of Moisture Change Based on CW Terahertz Reflectometry

We present a method for measuring water content in a sample using CW terahertz reflectometry. A Vector Network Analyzer (VNA) is used to irradiate a 300 GHz band terahertz wave to a wet sample, and the complex reflection coefficient is measured. The temporal change of the water content is thus observed by analyzing the change of the complex reflection coefficient. By fitting the measurement result with a multi-reflection model, we experimentally confirmed the observation of the moisture change on a paper sample.

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来源期刊

2020 45th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz)

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