文章基本信息

标题：Effects of Operating Parameters for Dynamic PWM Variable Spray System on Spray Distribution Uniformity
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作者：Huanyu Jiang ; Lijun Zhang ; Weinan Shi 等
期刊名称：IFAC PapersOnLine
印刷版ISSN：2405-8963
出版年度：2016
卷号：49
期号：16
页码：216-220
DOI：10.1016/j.ifacol.2016.10.040
语种：English
出版社：Elsevier
摘要：A dynamic PWM (Pulse Width Modulation) variable spray experiment platform was built up to study the spray distribution characteristics of PWM spray progress. The homogeneity of single nozzle dynamic spraying was evaluated based on this platform under different experiment condition. Carmine solution concentration-absorbance technology was adopted to get the CV (Coefficient of Variation) value of percent area spray coverage. RSM (Response Surface Methodology) with three variables including frequency, duty cycle of PWM control signal and forward velocity of spray was employed to study the effects of these three factors on dynamic spray distribution uniformity. Compared with previous common study of static spraying, the research on this paper can evaluate the actual spray distribution uniformity of dynamic spraying more accurately. Moreover, the platform and the research method can provide references for the settings of PWM variable-rate spray operation parameters in practical plant protection work.
关键词：Dynamic variable sprayPulse width modulationCarmine solutionSpray distribution uniformityCoefficient of variation