Mohammad Shabbir Hossain,Scott D. Noble,David Sumner
申请号：
US14969806
公开号：
US09989393B2
申请日:
2015.12.15
申请国别(地区):
US
年份:
2018
代理人:
摘要：
A method of monitoring a mass flow rate of product being applied with an agricultural implement includes the steps of:calibrating a pressure drop across a known distance in an air line at a number of air flow rates；metering a product at a desired application rate into the air line at a selected one of the air flow rates；establishing a pressure drop across the known distance at the selected air flow rate, while the product is being metered at the desired application rate；calculating a value of K1 dependent on the established pressure drop；estimating a mass flow rate of the product being applied, using the mathematical expression:log μ=−(1+ϵ)·log Fr+K1 where μ (mass loading ratio)；Fr (Froude number)；ϵ=calibration variable； andK1=constant for a given product being applied at a given mass flow rate.
