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Doctoral Dissertation Defense – Rodney Rohrer

CONTROL SYSTEM FOR VARIABLE-ORIFICE MECHATRONIC SPRAY NOZZLE FOR REGULATION OF APPLICATION RATE AND DROPLET SIZE SPECTRA

Date: Time: 12:00 pm
ZOOM
Contact: Joe Luck, (402) 472-1488, jluck2@unl.edu
Commercially available spray systems which offer real-time, simultaneous control of flow rate and droplet size for variable-orifice spray nozzles do not currently exist. The primary objectives of this project were to develop control logic for such a spray system with electromechanical variable-orifice spray nozzles and to implement a control system to automatically target a desired droplet spectra and desired flow rate based on application rate. This was successfully demonstrated with the control method developed in this project. This system has the potential to reduce pesticide exposure for operators and provides a foundation for future development of novel spray technologies including automatic droplet size control for drift reduction. This technology is also well suited for robotic and autonomous spray systems that are likely to play a role in future production ag systems.

Meeting URL: https://unl.zoom.us/j/99975539247?from=addon
Meeting ID: 999 7553 9247

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This event originated in Biological Systems Engineering.