A Vortex Type Flow Meter is a versatile and accurate instrument used to measure the flow rate of liquids, gases, and steam. It operates on the principle of the von Kármán vortex street, where an obstruction (bluff body) placed in the flow path creates alternating vortices downstream. The frequency of these vortices is directly proportional to the flow velocity, which is detected by sensors and converted into an electronic signal for digital display or output.