Rapid on-line non-destructive detection of the moisture content of corn ear by bioelectrical impedance spectroscopy

作     者：Zhao Pengfei Zhang Hanlin Zhao Dongjie Wang Zhijie Fan Lifeng Huang Lan Ma Qin Wang Zhongyi 

作者机构：College of Information and Electrical EngineeringChina Agricultural UniversityBeijing 100083China Modern Precision Agriculture System Integration Research Key LaboratoryMinistry of EducationBeijing 100083China Key Laboratory of Agricultural Information Acquisition Technology(Beijing)Ministry of AgricultureBeijing 100083China 

出 版 物：《International Journal of Agricultural and Biological Engineering》 (国际农业与生物工程学报（英文）)

年 卷 期：2015年第8卷第6期

页      面：37-45页

核心收录：

学科分类：0710[理学-生物学] 0810[工学-信息与通信工程] 0809[工学-电子科学与技术（可授工学、理学学位）] 08[工学] 0805[工学-材料科学与工程（可授工学、理学学位）] 0812[工学-计算机科学与技术（可授工学、理学学位）] 

基　　金：This research was supported by the Special Fund for Agro-scientific Research in the Public Interest(20120302) the Program of the Co-Construction with Beijing and the Specialized Research Fund for the Doctoral Program of Higher Education(20130008110035) 

主　　题：moisture content non-destructive detection bioelectrical impedance spectroscopy corn ear 

摘      要：Moisture content of corn directly affects its quality and storage time,and the rapid on-line detection of the moisture content of corn ears not threshed or in vivo in the fields is *** of the special shape of corn ear,the rapid,low cost and non-destructive bioelectrical impedance measurement is more suitable for its moisture content *** the four-electrode method with the Agilent E4980A precision LCR meter,the electrical impedance spectroscopies of the sweet corn ears and waxy corn ears at different moisture contents were *** frequency range of the detection was from 20 Hz to 2 MHz and to enhance the contact,the attached-type electrodes were wrapped in cotton soaked with 0.1%NaCl *** impedance data over the frequency range from 300 Hz to 5 kHz were used to obtain the parameters of the bio-impedance Cole-Cole *** results showed a good linear correlation(coefficient of determination R2=0.960)between the equivalent parallel resistance R∞of sweet corn ear and the moisture content value determined by standard chemical *** research proved that the bioelectrical impedance spectroscopy can be used for detecting the moisture content of corn ear.