Turbine flow meter is based on flow measurement using conversion of the fluid flow to rotor rotation and further to electronic signals. Fluid passes through the device, spinning the highly accurate rotor inside. The magnetic pick-up sensor monitors the blades passage and generates pulses. Electronic converter measures the frequency of the pulses and determines the flow rate and total ... https://www.pcd-flowmeter.com/flow-meter/turbine-flow-meter-manufacturers