Terahertz detection method for water content

• Main Authors: ZHANG RUI, WEI DONGSHAN, LU XINGXING, CUI HONGLIANG, CHANG TIANYING, SHE RONGBIN, LIU WENQUAN
• Format: Patent
• Language: Chinese; English
• Published: 19.04.2024
• Subjects: INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES; MEASURING; PHYSICS; TESTING

The invention discloses a terahertz detection method for water content. The main implementation steps of the measurement scheme are as follows: preparing a sandy soil sample; obtaining a terahertz data set; performing empirical wavelet transformation on the terahertz signal; feature vector construction based on an autoregression model; and classifying and identifying machine learning. The method has the advantages of strong adaptability, high robustness, high stability and high efficiency. 本发明公开了一种含水量太赫兹检测方法，其测量方案的主要实施步骤为：砂土样品的制备；太赫兹数据集的获取；太赫兹信号的经验小波变换；基于自回归模型的特征向量构建；机器学习的分类识别。该方法自适应性强、鲁棒性和稳定性高、效率高。