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

  • Chenxiao Li
  • Yanlei Xu
  • He Gong
  • Yuanyuan Liu
  • Qian SongEmail author
Conference paper
Part of the IFIP Advances in Information and Communication Technology book series (IFIPAICT, volume 546)

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%.

Keywords

Moisture content Microwaves Mixing technique Nondestructive measuring 

Notes

Acknowledgment

This work was supported by Jilin Scientific and Technological Development Program (No. 20180520016JH) and the Scientific Research Foundation of Jilin Agricultural University (No. 201719).

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Copyright information

© IFIP International Federation for Information Processing 2019

Authors and Affiliations

  • Chenxiao Li
    • 1
  • Yanlei Xu
    • 1
  • He Gong
    • 1
  • Yuanyuan Liu
    • 1
  • Qian Song
    • 2
    Email author
  1. 1.College of InformationJilin Agriculture UniversityChangchunChina
  2. 2.College of PhysicsJilin UniversityChangchunChina

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