Evaluation of the quality of spray distribution from boom sprayers in practical conditions¹

Abstract

The quality of distribution from field sprayers involves many parameters. Distribution is affected by environmental conditions. It also depends on static parameters concerning the boom at rest, and dynamic parameters involving boom movements. Field measurements at the Biologische Bundesanstalt (BBA) have shown the importance of the dynamic criteria. To avoid the effect of environmental parameters. one solution is to use a track simulator. A method has been developed at Cemagref (FR) to simulate distribution on soil from measurements of boom movements on the track simulator. Other evaluation methods have been dcvcloped by other laboratories. Two EU research programmes are now under way to develop test methods for field sprayer booms. The aim of the first is to compare the methods used to show the effect of boom movements. The second concerns the development of a test method for inspecting sprayers on firms. The results of these two projects will be used for the elaboration of an IS0 standard.

Performance Evaluation of a Boomless Oscillating Field Sprayer at Different Spraying Pressures and Oscillating Rates

“…Distribution quality of the spraying nozzles are based on several parameters such as the static and dynamic parameters of sprayer boom. In addition to this, the distribution is also affected by environmental conditions (Sinfort and Herbst, 1996). Accumulation and distribution of fungicide applied on the target surface is not only affected by flow rate of a single nozzle, but also by several factors such as nozzle spray pattern, spray direction, auxiliary airflow, drop dynamics (Foqué et al, 2012;Xie et al, 2015).…”

Design optimization and test for a pendulum suspension of the crop sprayer boom in dynamic conditions based on a six DOF motion simulator

“…Field measurements at the Federal Biological Research Centre Braunschweig (BBA) have shown the importance of the dynamic criteria. To avoid the effect of vehicle parameters, one solution is to use the motion simulator [12,13] . So a six DOF motion simulator was built and used for the dynamic characteristics optimization of boom suspension.…”

Co-Simulation Procedure for PID and Fuzzy Logic Active Controls Strategies Applied to a Sprayers Boom Suspension

“…The coefficient of variation founded stays from 5% to 17% for boom static conditions and 6% to 37% for boom in motion (6 to 26 km.h -1 ). Sinfort and Herbst (1996) studied the boom movement and the spray pattern in terms of practical use. The movements of the spray boom were evaluated by a simulator with hydraulic cylinders and the spray pattern was simulated by software.…”