Lidar: towards a new methodology for field measurement of spray drift
Torrent Martí, Xavier
Rocadenbosch Burillo, Francesc
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Lidar technology is becoming a promising alternative for spray drift measurement to the labour and time-expensive methodologies based on the ISO 22866 standard. This paper presents last advancements in an eye-safe lidar system specifically designed for drift monitoring. The lidar system was tested with an air-assisted sprayer in two cases: with standard hollow cone and air induction low-drift nozzles. The remaining variables (flow rate, environmental conditions,…) were similar. Lidar measurements allowed to know the time evolution of spray drift clouds and showed a much higher droplet concentration, dwelling time and dimensions for the cloud generated by standard nozzles. Also, the ability of the lidar system to distinguish different nozzle types according to their drift potential was proved. Finally, staring (laser beam stationary through the drift cloud) and 2D scanning measurements are discussed as starting points for an alternative spray drift measurement methodology.
Is part ofAspects of Applied Biology, 2016, núm. 132
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Gregorio López, Eduard; Torrent Martí, Xavier; Planas de Martí, Santiago; Solanelles Batlle, Francesc; Sanz Cortiella, Ricardo; Rocadenbosch Burillo, Francesc; Masip Vilalta, Joan; Rosell Polo, Joan Ramon; Ribes Dasi, Manuel (MDPI, 2016)Field measurements of spray drift are usually carried out by passive collectors and tracers. However, these methods are labour- and time-intensive and only provide point- and time-integrated measurements. Unlike these ...
Gregorio López, Eduard; Rosell Polo, Joan Ramon; Sanz Cortiella, Ricardo; Rocadenbosch Burillo, Francesc; Solanelles Batlle, Francesc; Garcerá, Cruz; Chueca, Patricia; Arnó Satorra, Jaume; Moral Martínez, Ignacio del; Masip Vilalta, Joan; Camp, Ferran; Viana, R.G.; Escolà i Agustí, Alexandre; Gràcia, Felip; Planas de Martí, Santiago; Moltó, Enrique (Elsevier, 2014)Pesticide spray drift entails a series of risks and costs in terms of human, animal and environmental well-being. A proper understanding of this phenomenon is essential to minimise these risks. However, most conventional ...
Gregorio López, Eduard; Solanelles Batlle, Francesc; Rocadenbosch Burillo, Francesc; Rosell Polo, Joan Ramon; Sanz Cortiella, Ricardo (Society of Photo-optical Instrumentation Engineers (SPIE), 2011)Minimization of the risk associated with spray applications requires a proper understanding of the spray drift phenomenon. This fact has led to the development of several techniques to measure the deposition on horizontal ...