A flow meter (flow measurement) mechanical flow meter can be both liquid and gas. Developing tools adapted from the anemometer types Ann, Mo. meter cup. The speed of rotation of Anita Morin meter has been calibrated. (calibration) with wind speeds If you know the speed of rotation, it is possible to know the wind speed. Measurement flow turbine's design using a turbine (turbine) installed within the fluid flowing through the pipe (see Figure 1) to the wheel rotating blades. The speed of the rotor speed is proportional to the fluid flow. Typically, the rotor speed can be measured with a voltage induction coil detects the magnetic (magnetic pick-up coil) is a coil wrapped around a permanent magnet mounted on the instrument. The blade must be made of material with magnetic properties of a substance. When each blade to cut through moving coil magnetic detectors. The output voltage is out with a pulse (pulse) as the rotational speed of the rotor. The timers count digital pulses that occur. Then processed by a microprocessor unit conversion in the form of volume, which counts the number of pulses that occur. Or flow rate, which counts the number of pulses in one period or called. Rate Pulse
also measure the rotational speed of the rotor can be achieved by installing a light sensor (photo sensor / optical sensor) on the instrument. The nature of the output signal that has a pulse, as well as the output of the voltage induction. Or output from the angular encoder (rotary encoder).
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