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首页> 外文期刊>Applied Engineering in Agriculture >LABORATORY AND FULL BOOM-BASED INVESTIGATION OF NOZZLE SETUP ERROR EFFECTS ON FLOW, PRESSURE, AND SPRAY PATTERN DISTRIBUTION
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LABORATORY AND FULL BOOM-BASED INVESTIGATION OF NOZZLE SETUP ERROR EFFECTS ON FLOW, PRESSURE, AND SPRAY PATTERN DISTRIBUTION

机译：基于实验室和全繁殖的喷嘴设置误差对流动，压力和喷涂模式分布的攻击效果

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Pesticide application is an integral part of crop production, and ground-based agricultural boom sprayers are used extensively to apply pesticides to the crop canopy or soil surface across millions of acres in the United States. Efficient application is necessary to minimize costs and limit adverse environmental impacts. The goals of this study were to provide quantified measurements on the effects of nozzle setup errors on spray pattern uniformity and evaluate how laboratory patternator-based simulations would compare to measurements on a full spray boom. More specific objectives were to determine the effects of factors such as nozzle lateral angle, nozzle spacing, nozzle replacement, and nozzle pitch angle on spray pattern distribution and evaluate a simulation approach to predict the effects of single nozzle boom setup errors on full boom system pattern uniformity. Laboratory and sprayer-based tests were devised to quantify the impact of nozzle setup and operational errors on spray pattern uniformity, boom pressure, and nozzle flow rates. Results indicated that small variations in boom setup or nozzle operation (i. e., pressure or flow) can cause significant errors in spray nozzle distribution which may not be completely detectable by measuring spray pattern alone. Simulations using laboratory data from setup or operational errors reflected similar changes (differences less than 2.6%) in spray pattern CV as full boom data with similar setup errors. These findings were significant in that it may be possible to model errors within full boom spray distributions based on smaller laboratory-collected datasets.
机译：农药应用是作物生产的一个组成部分，地面的农业动力喷雾器广泛使用，将农药应用于美国数百万英亩的作物冠层或土壤面积。有效的申请是最大限度地减少成本和限制不良环境影响的必要申请。本研究的目标是提供有关喷嘴设置误差对喷雾模式均匀性的影响的量化测量，并评估基于实验室的图案化器的模拟将如何与全部喷雾臂上的测量进行比较。更具体的目标是确定喷嘴横向角，喷嘴间距，喷嘴置换，喷嘴置换和喷嘴俯仰角等因素的影响，并评估了一种仿真方法来预测单个喷嘴臂设置误差对全臂系统模式的影响均匀性。设计了实验室和喷雾器的测试，以量化喷嘴设置和操作误差对喷雾模式均匀性，动臂压力和喷嘴流速的影响。结果表明，动臂设置或喷嘴操作的小变化（即，压力或流动）可能会在喷嘴分布中引起显着的误差，这通过单独测量喷雾模式可能无法完全可检测。使用来自设置或操作误差的实验室数据的模拟反映了喷雾模式CV中的类似变化（小于2.6％），作为具有类似设置错误的完整繁荣数据。这些发现是显着的，因为可以基于较小的实验室收集的数据集来模拟全臂喷射分布中的误差。

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