| In recent years,China's aviation plant protection machinery has been developing rapidly,and aerosol spraying has become the preferred operation mode for the effective prevention and treatment of pests and diseases in agriculture and forestry.Based on the current aviation plant protection operation process,the large amount of the droplet drift and sedimentation quantity is little,the scholars at home and abroad will air fertilizer combined with aviation plant protection technology,spray is added in the liquid fertilizer can obviously improve the eppo unmanned aerial vehicle(uav)evaporation spraying in the period of fast,drift,absorption of the status quo,a substantial increase in plant protection unmanned aerial vehicle(uav)spraying effect.There are some aviation sprays in China,but there are few studies on the comparison and evaluation of aerosol propellant.Preliminary studied in this paper,the indoor add different kinds of different concentrations of air in clean water spray fertilizer,glycerin,Greetwet3718 tai mu green technology co.,,,dodecyl benzene sulfonic acid sodium in the solution after the wettability,surface tension,the influence of particle diameter.On this basis,the experimental study on spray parameters on the influence of the droplets deposition,and used in the field of small six rotor eppo unmanned aerial vehicle(uav)add Michael fly additives before and after the contrast test,verify the droplets deposition rate of change.In the end,according to the standard of aviation plant protection operation,the effect of the aerosol spray on the small six-rotor uav was tested before and after the addition of additives.The experimental results show that the effective spray of uav spray is 3.5m.Droplets after join additive deposition density to an average of 126.5 /cm2,upper middle 99.3 / cm2,compared with no fertilizer spray,fog droplets density increased by 23%,the sedimentation of the above the average in the middle of deposition density increased by 36% on average. |
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