Turbine flow sensor structure: When the measured flow body flows through the sensor, under the action of fluid, the impeller is forced to rotate, and its speed is proportional to the average flow velocity of the pipeline. The rotation of the impeller periodically changes the magnetic resistance value of the magnetoelectric converter, and the magnetic flux in the detection coil changes periodically, generating the induced potential with the same rotation frequency, namely, the electrical pulse signal, after amplification by the amplifier. Send DAO display instrument display.