Electro-rheological fluid (ER) technology is an old "newcomers" coming to the market at high speed. Various industries including the automotive industry, production sector, and robotics are full of potential ER fluid applications. A structure based on ER fluids might be the next generation in design for products where power density, accuracy and dynamic performance are the key features. Previous studies of Electro-Rheological fluid were motivated by brake, clutch, damping and resistive

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... on instead of an ER Fluid based electrode actuator. To fully understand the performance of such an actuator, it is imperative to study ER fluid combinations and performance. The novel method of introducing the exact ER fluid into the aircrafts conventional control surface system instead of hydraulically or pneumatically operated fly-by-wire or fly-by-light system. This paper presents the working principle, methodology of preparation in low cost, physical and chemical properties and quick response control of ER fluids. This work also shows the excellent features like fast response, simple interface between electrical power input and the mechanical power output and controll ability make ER Fluid the next technology of choice for many applications.