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Technical Note: Spray Pattern Investigation of an Axial-Fan Airblast Precision Sprayer Using a Modified Vertical Patternator

Published by the American Society of Agricultural and Biological Engineers, St. Joseph, Michigan www.asabe.org

Citation:  Applied Engineering in Agriculture. 28(3): 647-654. (doi: 10.13031/2013.42426) @2012
Authors:   L. R. Khot, R. Ehsani, G. Albrigo, A. J. Landers, P. A. Larbi
Keywords:   Vertical patternator, Variable rate sprayer, Spray distribution

Evaluation of the spray patterns is essential for making adjustments to an agricultural sprayer that would result in less chemical usage, less spray run-off onto the ground, and increased spray targeting accuracy. Therefore, in this study, a vertical patternator was fabricated to evaluate an axial-fan airblast sprayer. The airblast sprayer was retrofitted with variable rate nozzles and adjustable air-assist flow control, for citrus tree-specific precision spraying. Tests involved evaluating spray patterns at different nozzle flow rates and air-assist settings. Also, the air-assist measurements between the pair of nozzles were measured while the sprayer was stationary (no spray).

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