Microwave Mixing Technique for Nondestructive Measurement of Moisture Content of Particulate Agricultural Products - Computer and Computing Technologies in Agriculture XI Access content directly
Conference Papers Year : 2019

Microwave Mixing Technique for Nondestructive Measurement of Moisture Content of Particulate Agricultural Products

Chenxiao Li
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Yanlei Xu
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He Gong
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Yuanyuan Liu
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Abstract

A new method for nondestructive measurement of moisture content of particulate agricultural products is developed using microwave mixing technique. A double horn system with a relative vertical distance of one-fourth wavelengths is designed to measure the reflected microwave signals. The particulate materials are interacted with microwave at a frequency of 10.5 GHz, and the reflected microwave signal is mixed with the launch signal. Corns with different moisture contents are chosen as samples. Calibration models for moisture content are proposed in accordance with the measurement of the differential attenuation of the microwave mixing signal. A moisture content from 6.8% to 30.1% is obtained with a coefficient of determination of 0.98 and a standard error of calibration value of 1.12%.
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hal-02111548 , version 1 (26-04-2019)

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Chenxiao Li, Yanlei Xu, He Gong, Yuanyuan Liu, Qian Song. Microwave Mixing Technique for Nondestructive Measurement of Moisture Content of Particulate Agricultural Products. 11th International Conference on Computer and Computing Technologies in Agriculture (CCTA), Aug 2017, Jilin, China. pp.100-108, ⟨10.1007/978-3-030-06179-1_11⟩. ⟨hal-02111548⟩
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