Showing papers on "PID controller published in 1968"
Patent•
20 Jun 1968
TL;DR: In this article, a process control system is compensated for nonlinearities in the control loop by means of a variable gain feedback element in the controller, which is adjusted by the output signal from a function generator, the input of which is the measured variable.
Abstract: A process control system is compensated for nonlinearities in the control loop by means of a variable gain feedback element in the controller. The gain of the feedback element is adjusted by the output signal from a function generator, the input of which is the measured variable. The function generator is calibrated to compensate for the nonlinearity of the control loop.
25 citations