基于电学特性的库尔勒香梨果实重量检测研究  

Study on fruit weight detection of Korla pear based on electrical properties

作　　者：李小龙 于世辉 靳小真 李同玺 刘扬[1] 兰海鹏[1] LI Xiaolong;YU Shihui;JIN Xiaozhen;LI Tongxi;LIU Yang;LAN Haipeng(College of Mechanical and Electrical Engineering,Tarim University,Alar,Xinjiang 843300;Zibo Agricultural Machinery Service Center,Zibo,Shandong 255000)

机构地区：[1]塔里木大学机械电气化工程学院,新疆阿拉尔843300 [2]淄博市农业机械事业服务中心,山东淄博255000

出　　处：《塔里木大学学报》2021年第3期85-89,共5页Journal of Tarim University

基　　金：塔里木大学校长基金项目“基于电学特性的香梨损伤鉴别研究”(TDZKCQ201902);强青科技创新骨干人才计划项目“香梨隐性损伤评价方法构建及检测装置研发”(2021CB039)。

摘　　要：为探索基于电学特性的库尔勒香梨果实重量检测的可行性,推进库尔勒香梨品质无损检测的技术集成,本试验以库尔勒香梨为研究对象,分析重量与各电学参数之间相关性大小,探究电学参数随果实重量变化的规律,确定库尔勒香梨电学参数与果实重量的关系。结果表明:并联等效电容(Cp)、品质因数(Q)、并联等效电阻(Rp)、复阻抗(Z)、复阻抗相角(θ)、电抗(X)6个电学参数相关性较高,呈现显著相关性水平(P<0.01);随库尔勒香梨果实重量的增加,电学参数Cp、X和θ逐渐增大,电学参数Rp、Z和Q逐渐减小;所选电学参数与果实重量符合线性关系,其中并联等效电容的拟合方程最优,R2=0.9178,拟合方程为y=0.15x-8.09,应用并联等效电容检测库尔勒香梨果实重量具有可行性。该研究结果可为库尔勒香梨采后快速分级和品质无损检测设备的研制提供参考依据,同时为水果产业的品质分级提供理论指导。In order to explore the feasibility of measuring the weight of Korla pear based on electrical characteristics,the technology integration of nondestructive testing of Korla pear quality was promoted,this paper took Korla pear as the research object,analyzed the correlation between the weight and the electrical parameters,explored the change rule of electrical parameters with fruit weight,and de⁃termined the relationship between the electrical parameters and fruit weight of Korla pear.The results show that the parallel equivalent capacitance(Cp),quality factor(Q),parallel equivalent resistance(Rp),complex impedance(Z),complex impedance phase Angle(θ)and reactance(X)have a high correlation level(P<0.01).With the increase of fruit weight,the electrical parameters Cp,X andθincreased gradually,while the electrical parameters Rp,Z and Q decreased gradually.There was a linear relationship between electrical parame⁃ters and fruit weight,in which the equation of parallel equivalent capacitance fitted best,R2=0.9178,the fitting equation was y=0.15x-8.09,it was feasible to use parallel equivalent capacitance to detect the fruit weight of Korla pear.The research can provide reference for the development of postharvest rapid grading and quality nondestructive testing equipment of Korla pear,and also provide theoreti⁃cal guidance for the quality grading of fruit industry.

关 键 词：库尔勒香梨 电学特性 果实重量 无损检测 

分 类 号：S125[农业科学—农业基础科学]