Integration of spray quality information
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Integration of Spray Quality Information. by Tim Stuenkel Applications Engineer,. Why Measure Drop Size?. Drift vs. Efficacy Pesticide labeling regulations Provide basic spray quality information to the end user . Drop Size Measurements. Reference tips are acquired and tested

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Integration of Spray Quality Information

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Integration of spray quality information

Integration of Spray Quality Information

by

Tim Stuenkel

Applications Engineer,


Why measure drop size

Why Measure Drop Size?

  • Drift vs. Efficacy

  • Pesticide labeling regulations

  • Provide basic spray quality information to the end user


Drop size measurements

Drop Size Measurements

  • Reference tips are acquired and tested

    periodically

  • In house laser equipment is used for measurements (Malvern, PMS, PDPA)

  • Tips are analyzed at various pressures and locations in the spray pattern


Pdpa laser

PDPA Laser


Droplet size calculations

Droplet Size Calculations

  • Raw droplet size data is curve fitted

  • Curve fit data is used to create graphs for each individual tip

  • Graphs are overlaid on reference template to assign droplet size categories


Integration of spray quality information

XC

VC

C

M

F

VF


Integration of spray quality information

TT11002-VP

@ 30 psi

XC

VC

C

M

F

VF

TT11002-VP

@ 60 psi


Droplet size categories

Droplet Size Categories


Xr teejet

XR TeeJet®


Turbo teejet

Turbo TeeJet®


Ai teejet

AI TeeJet®


How is data published

How is Data Published?

  • Tabular Drop Size Charts DS37043-19.PDF

  • Graphical Drop Size Charts DS11825-81.pdf

  • Droplet Size Category Charts BG201-1-15.pdf


Where is data published

Where is Data Published?

  • Hard copies available

  • Catalogs and Buyer’s Guides

  • Websites


Conclusion

Conclusion

  • Data is necessary to educate the end user

  • Droplet size charts are becoming the accepted standard

  • Drop size data is available in various formats


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