KSB Centrifugal Pump Lexicon –

From A to Z

Speed measurement

Speed measurements are used to quantify the speed at which a body rotates and can be carried out in different ways.

Methods for measuring speed

  • Electromagnetic induction speed transmitter that generates a voltage proportionate to the rotational speed
  • Manual tachometer based on the eddy current principle, together with a manual incremental counter at the shaft end of the pump or motor
  • Electronic counter (for high accuracy requirements) that receives pulses proportionate to the pump speed as transmitted from the shaft (optical or magnetic signals are most frequently used)
  • Slip meter (slip coil or slip magnetic needle) that is positioned at a specific axial distance from the motor


  

  

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