Turbine Flowmeters

  • Principles of Operation
    - Consists of a rotor mounted on a bearing and shaft in a housing.
    - Fluid passes through housing causing rotor to spin proportionately to the velocity of the flowing fluid
    - A device measures the speed of the rotor that detects each time the rotor blade generates a pulse
    - The rotational speed of the sensor shaft is proportionate to the volumetric flow rate – the rate of spin is measured to calculate the flow

  • Typical Accuracy
    - Accurate in liquid application
    - Accuracy measured in three essentials: repeatability, calibration and application effect

  • Theory of Operation
    - A fluid moves through a pipe and causes the vanes of the turbine to spin and rotate
    - The rate of spin is used to calculate the flow

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