Closed loop control system
A control system in which the objective is that the controlled quantity attain a desired performance and be then measured and compared with a standard representing that performance.
Note:: Any deviation from the standard is fed back into the control system in such a sense
that it will reduce the deviation of the controlled quantity from the standard.
Reference: I.E.E.E. (modified)
Please note that this is the term as it stands in the original IALA Dictionary edition (1970-1989)
International Association of Marine Aids to Navigation and Lighthouse Authorities - AISM