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Draw and explain the working principle of turbine type flow meter. Mention its Application area.

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Working Principle: The flow of liquid past the wheel causes the wheel to rotate at a rate which is proportional to the velocity of the fluid. A voltage pulse is induced in the coil as each blade on the turbine wheel moves past it and these pulses are measured by a pulse counter.

Application Area: 1) Can be used at high temperature and pressure 2) Suitable for low viscosity high flow measurements 3) Used in petrochemical industries, in Aerospace applications etc.

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