Methods of Measuring a Flowrate Through a Pulse Width Modulation Valve, and Related Agricultural Machines and Monitoring Systems

Abstract

A method of operating a crop sprayer includes determining a duty cycle of a pulse width modulation valve, measuring a flowrate of a fluid through the pulse width modulation valve to determine a measured flowrate, and applying a correction factor to the measured flowrate to determine a corrected flowrate based on the duty cycle. A crop sprayer includes a chassis, a product tank containing a fluid, a boom comprising at least one boom arm configured to laterally extend from the chassis, and a nozzle assembly operably coupled to the at least one boom arm and in fluid communication with the product tank. The nozzle assembly includes a sensor housing, a flow meter, and a pulse width modulation valve. The crop sprayer includes a sensor monitoring system configured to determine a corrected flowrate through the nozzle assembly. Related control systems are also disclosed.

Dependencies are inferred from the claim text.