Computer Engineering and Applications ›› 2010, Vol. 46 ›› Issue (29): 239-241.DOI: 10.3778/j.issn.1002-8331.2010.29.069

• 工程与应用 • Previous Articles     Next Articles

Study on microwave measurement for grain moisture content in grain depot

JIANG Yu-ying,ZHANG Yuan,GE Hong-yi   

  1. College of Information Science and Engineering,Henan University of Technology,Zhengzhou 450001,China
  • Received:2009-04-01 Revised:2009-06-02 Online:2010-10-11 Published:2010-10-11
  • Contact: JIANG Yu-ying

微波检测粮仓储粮水分技术的研究

蒋玉英,张 元,葛宏义   

  1. 河南工业大学 信息科学与工程学院,郑州 450001
  • 通讯作者: 蒋玉英

Abstract: The measuring principle and characteristic of microwave moisture content determination techniques are analyzed,and a method is addressed as well.According to the relationship among the power attenuation,signal parameter variation and moisture content of grain when the microwave penetrates the grain,a model of microwave moisture content measuring system is built.Experiments are made to compare the algorithm with traditional method on solving this problem.The results show that this method can measure the grain moisture content quickly and efficiently,and satisfy the requirement of grain moisture content determination in grain depot.

Key words: microwave, grain moisture content measurement, dielectric constant, non-destructive detection

摘要: 分析了微波水分检测技术的原理、特点及所采用的方法。针对微波透射过粮食后,其反射波的能量衰减,信号参数变化与介电常数及粮食水分含量之间的关系,构建了储粮水分检测模型。测量结果与传统的烘干法所得到的水分含量比较,比较结果表明,利用微波法能够快速、准确地检测出储粮水分含量,满足粮仓储粮含水量检测的需求。

关键词: 微波, 储粮水分检测, 介电常数, 无损检测

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