Abstract. A new-concept of using variable spray angle fan spray nozzle in conjunction with pulse width modulation technique was proposed for compensation of the effects of spray boom vibration on chemical application rate and pattern. A brief review of literature regarding techniques used to diminish the effects of long spray booms dynamic behavior on uniformity of spray application reveals that the research work so far has mostly been involved boom positioning, vibration analysis, mathematical modeling and monitoring of boom dynamic behavior, in the hope of finding the ways of attenuation of vibration through improving the design of better boom structure, suspension, and control systems. The present article puts forward the idea of using Variable Spray... |