Vance VanDoren, PhD, PE
The venerable proportional-integral-derivative (PID) algorithm can solve a variety of feedback control problems, but not all.
Adaptive motion controllers can be modified to a controlled process behavior, among other controlled process benefits.
PID: Proportional-integral-derivative controllers may be ubiquitous, but they’re not perfect. Consider how deadtime affects integral action.
A controller equipped with an accurate process model can ignore deadtime. Deadtime generally occurs when material is transported from the actuator site to the sensor measurement location. Until the material reaches the sensor, the sensor cannot measure any changes effected by the actuator.
Maverick, Polytron and Malisko Engineering help lead clients into the new world of automation. CFE Media's judges have again chosen three companies to receive the 2015 System Integrator of the Year award in three categories: more than $17 million in annual revenue, $10 million to $17 million annual revenue, and up to $10 million annual revenue.
Sometimes a process is easier to control if it “leaks.” Here’s a look at why.
Automatic control operations can be described as either open-loop or closed-loop. The difference is feedback.
Sometimes two controllers can do a better job of keeping one process variable where you want it.
Proportional-integral-derivative controllers may be ubiquitous, but they’re not perfect.
For 2014, Control Engineering recognizes the best automation system integrators in the business.