A fluidic system is a mechanical system where fluid (either liquid or gas) flow from one point to another constitutes variations in the pressure they build up in the containers and connecting tubes. A flapper nozzle valve is a transducer which is designed and used for the measurement of minute displacements. These valves have the potential to work in both hydraulic and pneumatic power supplies. Here design of hydraulic system is in such a way that it helps to withstand very high pressures. The pneumatic system is preferably operated at an air pressure of 13.79 Newton per square centimeter. Many assumptions are accommodated while developing the transfer function for the pneumatic system for the flapper nozzle valve. For deriving incremental transfer function, linearization technique is employed. A flapper nozzle valve consists of a small volume chamber which is connected to a constant pressure source on one side via a capillary tube and the other side opened to atmosphere through a nozzle. A flapper mounted on the front portion of nozzle regulates fluid flow bleeding out through the nozzle into the atmosphere.
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