The transducer is a device that converts the mechanical motion of a spinning turbine into an electronic signal that is read by the fuel computer. The magnetic pick-up assembly detects the spinning turbine and counts the revolutions. This produces a series of pulses that is transmitted to the fuel computer. The computer uses the pulse frequency to calculate the fuel flow over time. The Shadin Avionics Company Incorporated-designed fuel flow transducer can be used in conjunction with all of our fuel totalizer units and fuel/airdata computers.