This course is a consideration of Actuation systems [Actuation systems are the elements of control systems which are responsible for transforming the output of a control system into a controlling action on a machine or device]. To understand design process, introductory chapters will explain sensors and transducers signal conditioning, measurement systems and control systems & strategy. Special attention is devoted to Mechanisms [The mechanisms are devices which can be considered to be motion converters in that they transform motion from one form to some other required form]. Fluid power systems, namely pneumatic and hydraulic actuation systems are discussed. Electrical and electro-mechanical systems are explained.