Application of Vibration Sensor/Transducers:
Measurements on Structures or Machinery Casings:
Accelerometers and Velocity Sensors Used in gas turbines, axial compressors, small and mid-size pumps.
These sensors detect high frequency vibration signals related to bearing supports, casing and foundation resonances, vibration in turbine/compressor vanes, defective roller or ball bearings, noise in gears, etc.
Displacement measurements relative to rotating shafts:
Proximity Probes (capacitance or eddy-current) Used in turbo machinery supported on fluid film bearings, centrifugal compressors, gears and transmissions, electric motors, large pumps (>300HP), some turbines and fans.
These sensors detect shaft static displacements, unbalance response, misalignment, shaft bending, excessive loads in bearings, dynamic instabilities, etc.
Advantages & Disadvantages of Different Vibration Sensors
Also Read: Different Types of Sensors Principle Used in Vibration Measurement
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2 comments
Thank you for good points.
One of the advantageous about acelerometers is high sensitive to noise .I have seen them on MV motors and due to noises , very often there is false alarms and it caused disconeccting the machine monitoring system from plc.
Absolutely , manufacturers have some recommendations but you mentioned the general advantageous and I think there are general solutions , as well.
would you please give more information.
Regards
Rahim
Sorry . I should say one of the disadvantageous about accelerometers .