基于ECT技术的马铃薯土壤栽培物场电学特性研究  

Research on electrical properties of potato soil culture field by using ECT

作　　者：刘琪芳[1] 车小霞 王晨 李戌 Liu Qifang;Che Xiaoxia;Wang Chen;Li Xu(Shanxi Agricultural University,College of Information Science and Engineering,Jinzhong,Shanxi 030801,China)

机构地区：[1]山西农业大学信息科学与工程学院,山西晋中030801

出　　处：《计算机时代》2020年第6期17-20,共4页Computer Era

基　　金：山西省应用基础研究项目青年科技研究基金(201701D221105);山西农业大学科技创新基金博士科研启动项目(2015ZZ03)。

摘　　要：马铃薯土壤栽培物场电学特性对马铃薯生长状态的检测研究具有重要意义。文章基于电容层析成像技术理论模型,通过COMSOL建立马铃薯土壤栽培环境仿真模型,利用多物理场计算方法求解AC/DC物理场模块静电场稳态电场分布,以灵敏度分布为优化目标,优化设计阵列电极结构。研究表明,电极覆盖率为80%的四电极阵列结构在相邻激励方式下电场分布相对较优。The electrical properties of potato soil culture field are great significance to detect potato growth status.Based on theoretical model of electrical capacitance tomography(ECT),this paper utilizes COMSOL to establish simulation model of potato soil cultivation environment.The multi-physics calculation method is used to solve the steady-state electric field distribution on AC/DC physics module.An array electrode structure is designed and optimized with the purpose of sensitivity distribution.The results show that the four-electrode array structure with 80%coverage has a relatively good sensitivity distribution under adjacent excitation modes.

关 键 词：电容层析成像技术 马铃薯 土壤 电场分布 灵敏度 

分 类 号：S532[农业科学—作物学] TM55[电气工程—电器]