Nuyttens D, Sonck B, de Schampheleire M, Steurbaut W, Baetens K, Verboven P, Nicolaï B, Ramon H
Ministry of the Flemish Community, Agricultural Research Centre, Department of Mechanisation - Labour - Buildings - Animal Welfare and Environmental Protection (CLO-DVL), Burg. Van Gansberghelaan 115, BE-9820 Merelbeke, Belgium.
Commun Agric Appl Biol Sci. 2005;70(4):1023-35.
The characteristics of agricultural sprays belong to the most critical factors affecting spray drift, deposition on plants, spray coverage and biological efficacy. Hence, within the framework of a research project about agricultural spray drift, a measuring set-up for the characterisation of spray nozzles using a Phase Doppler Particle Analyser (PDPA) was developed. This set-up is able to measure droplet sizes and velocities based on light-scattering principles. It is composed of different parts i.e.: a climate room, a spray unit, a three-dimensional automated positioning system and an Aerometrics PDPA 1D system. This paper presents a detailed description of this measuring set-up along with some first measuring results. These measurements will be used as an input for a Computational Fluid Dynamics drift-prediction model and to classify nozzles based on their driftability.
农用喷雾的特性是影响喷雾漂移、在植物上的沉积、喷雾覆盖范围和生物功效的最关键因素。因此，在一个关于农用喷雾漂移的研究项目框架内，开发了一套使用相位多普勒粒子分析仪（PDPA）来表征喷雾喷嘴的测量装置。该装置能够基于光散射原理测量液滴大小和速度。它由不同部分组成，即：一个气候室、一个喷雾单元、一个三维自动定位系统和一个Aerometrics PDPA 1D系统。本文详细描述了这套测量装置以及一些初步测量结果。这些测量将作为计算流体动力学漂移预测模型的输入，并根据喷嘴的漂移性对其进行分类。
