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
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 .