Development of sensor system for real-time measurement of droplet deposition of agricultural sprayers

作     者：Longlong Li Ruirui Zhang Liping Chen Tongchuan Yi Gang Xu Daxuan Xue Qing Tang Linhuan Zhang Andrew John Hewitt Yining An 

作者机构：Beijing Research Center of Intelligent Equipment for AgricultureBeijing Academy of Agricultural and Forestry SciencesBeijing 100097China National Research Center of Intelligent Equipment for AgricultureBeijing 100097China National Center for International Research on Agricultural Aerial Application TechnologyBeijing 100097China Beijing Key Laboratory of Intelligent Equipment Technology for AgricultureBeijing Academy of Agricultural and Forestry SciencesBeijing 100097China College of Information EngineeringCapital Normal UniversityBeijing 100048China Centre for Pesticide Application and Safetythe University of QueenslandQueensland 4072Australia Faculty of Science and Engineeringthe University of Nottingham Ningbo ChinaNingbo 315100ZhejiangChina 

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：2021年第14卷第5期

页      面：19-26页

核心收录：

学科分类：08[工学] 0812[工学-计算机科学与技术（可授工学、理学学位）] 

基　　金：supported by the National Key Research and Development Project of China(Grant No.2019YFD1101102-3) Youth Research Fund of Beijing Academy of Agriculture and Forestry Sciences(Grant No.QNJJ202009) Outstanding Scientist Cultivation Project of Beijing Academy of Agriculture and Forestry Sciences(Grant No.JKZX201903) National Natural Science Foundation of China(Grant No.32071907) and Outstanding Young Talents Projects of Beijing Academy of Agriculture and Forestry Sciences-Research on positioning and control technology and equipment of unmanned vehicles in orchards.Also,Shuaihui Feng,Shufan Chai,Mingjia Zhang and Jiaxing Song’s contributions to this experimental work are highly appreciated 

主　　题：deposition measurement agricultural sprayer droplets intelligent sensor 

摘      要：During the chemical application process,droplet deposition on a target is an important reference indicator for evaluating the spraying technique and its *** order to quickly obtain deposition results in the field,this study proposed a novel system based on surface humidity *** basic principle is to convert the measured physical quantity change into a capacitance change,thereby realizing the physical quantity to electrical signal *** Android application for mobile terminal and the corresponding coordinator were developed,which allowed operators to control multiple sensors simultaneously through the *** soluble tracer detected by spectrophotometer was used to calibrate the *** obtained results indicated a good correlation between deposition volume and voltage increment output from the newly developed system(R2 of the six nozzles with Dv0.5 ranging from 107.28μm to 396.20μm were 0.8674-0.9729),and a power regression model based on the least squares technique(R2=0.8022)was *** the field test,the system exhibited an optimal performance in predicting the deposition *** with the conventional method of measuring tracer concentration,the deviation was less than 10%.In addition,the system exhibited good fitting curve of the deposition distribution with droplet number results measured by the water sensitive paper method.