A proportional–integral–derivative controller (PID controller or three-term controller) is a feedback -based control loop mechanism commonly used to manage machines and processes that require continuous control and automatic adjustment.
Pelvic inflammatory disease (PID) is an infection of the female reproductive organs. It most often occurs when sexually transmitted bacteria spread from your vagina to your uterus, fallopian tubes or ovaries.
PID control, representing proportional-integral-derivative control, is a feedback mechanism in control system, often referred to as three-term control. By adjusting three parameters—the proportional, integral, and derivative values of a process variable’s deviation from its set point—specific control actions are effectively tailored.