Design and Experiment of Test Bench for Variable Spraying Control System
Based on the single performance of the current variable spraying control system test device,the indoor spray test cannot recover the droplets,resulting in electrical safety and other issues,thus variable spra-ying control system test bench was designed.The relevant performance test of the test bench was carried out,and the pressure measurement accuracy of the test bench was 97.53％.A three-factor single nozzle flow relationship model based on pipeline pressure,solenoid valve response frequency and different pulse width modulation is es-tablished,and the nozzle flow control is carried out according to the real-time pressure change of the pipeline.The droplet recovery rate of the test bench reached 90％.The test bench is of great significance for carrying out the test of indoor variable spraying control system,preventing droplets drift and improving the safety of indoor test.
orchardvariable spraying control systemtest benchdroplet recovery
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