A controller, or a compensator is an additional system that is added to the plant to control the operation of the plant. The system can have multiple compensators, and they can appear anywhere in the system: Before the pick-off node, after the summer, before or after the plant, and in the feedback loop.
B unit of the Russian 3TE10MK locomotive. A B unit, in railroad terminology, is a locomotive unit (generally a diesel locomotive) which does not have a driving cab or crew compartment, and must therefore be controlled from another, coupled locomotive with a driving cab (an A unit). The terms booster unit and cabless are also used.
us â uk â /ËsÉªl.É.blÌ©/. B2 a single unit of speech, either a whole word or one of the parts into which a word can be separated, usually containing a vowel. More examples. In the word 'engine', you should stress the first syllable.