Patent ID: 6139903
Filing Date: 2000-10-31
Classification: B05C,B29C,G05B,G05D

Abstract:
A method of maintaining a controlled relationship between a variable input signal and the actual dispensing rate of a fluid having a non-linear characteristic of flow from a dispensing device, the method comprising the steps of:dispensing fluid from the device onto a workpiece by:(1) receiving an input signal;(2) modifying the received input signal as a function of a measurement of a first flow of the fluid from the device to produce a compensated signal;(3) correcting the compensated signal with stored correction data to generate a corrected compensated signal to produce the actual dispensing rate having the controlled relationship to the received input signal; and(4) operating the, dispensing device in response to the control signal to dispense a second flow of fluid onto the workpiece in the controlled relationship to the received, input signal.