What is a closed loop system?
A control system that appears to be self-regulating. Closed-loop
systems employ feedback and a reference of correctness (norm or set
point). Deviations from the norm are detected and corrections made
in order to maintain a desired state in the system. Closed loop
systems provide the homeostatic mechanism of many physiological
and also control some movement patterns, where feedback from
proprioceptors and other receptors play an important part. Compare