Using laser diffraction to measure agricultural sprays: Common sources of error when making measurements

W. Clint Hoffmann, Bradley K. Fritz, Yubin Lan

Abstract


Abstract: In an agricultural setting, laser diffraction is a technique used to measure the size of particles, such as spray droplets or soil particles.  Measurement of spray droplets allow users to create a desired droplet size through selection of spray nozzles, operating pressures, and adjuvants to maximize effectiveness of agrochemicals with minimum negative impact on the surrounding environment.  The objective of this work is to provide practical guidance to new users of laser diffraction based on years of experience by the authors.  The goal will be to highlight and discuss key issues to consider when making laser diffraction measurements, including proper setup and alignment of the laser, obscuration effects, background light scattering and other potential sources of error. 

Keywords: Laser diffraction, droplet size, agricultural sprays

DOI: 10.33440/j.ijpaa.20180101.0005

Citation: Hoffmann W C, Fritz B K, Lan Y B.  Using laser diffraction to measure agricultural sprays: common sources of error when making measurements.  Int J Precis Agric Aviat, 2018; 1(1): 15–18.


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References


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