Education and Career Forum

The subject of instrumentation engineering focuses a lot in the mechanism and engineering that goes in the making of instruments. To have a thorough idea about these instruments it is important to understand the theory and concept behind the whole engineering and working of these instruments and their purpose. The automatic control system specifically focuses on the instruments that are endowed to work in automatic control systems. Some of the topics covered in this paper are different types of control systems and their diagrammatic representations, voltage and current analogous circuit, comparison of different control systems, transfer function of control system, derivation of transfer function of canonical form of control system, merits and demerits of transfer function, comparison of block diagram reduction technique with signal flow graph technique, determination of gain of the system and all static error coefficients, BIBO stability, Routh’s array method and the stability achieved using it, state space approach and classical methods.