Digital vibration meter vibrometer tester gauge measure precision sensitivity accelerometers

Which Parameters Should be Measured proceed vibration measurement?
Acceleration, velocity and displacement are three common parameters. The results are accurate and repeatable, and other measurement parameters have not been proved to reliable and accurate. However, for some occasions, speed measurement and frequency measurement are also very important. Acceleration measurement has excellent high frequency performance. Therefore, it is very effective in judging the faults of bearings and gearboxes.
Velocity measurement is the most commonly used parameter in vibration analysis. For the mechanical categories of different power,speed will be a guide for judging according to ISO2372, BS4678 or VD2056, when judging whether mechanical vibration is acceptable, . The categories of machinery are listed in the appendix to this specification. Displacement measurement is mostly used for low speed machinery. Its characteristic is low frequency with good characteristic, but when bearing is installed, the displacement measurement effect is not ideal.

Matters needing attention

1.The connection cable of sensor is easy to cause noise, so the cable winding and large amplitude swaying should be avoided. Another source of noise is poor contact between connectors,should also attention.
2.Instruments should not be used in the environment of strong electromagnetic interference or corrosive gases, and should be protected from strong vibration and impact.
3.Try not to exchange sensors,because the sensitivity of instrument is adjusted according to the sensitivity of the sensor adjust in factory.
4.Each measurement should be carried out in the same running state. Changing the running state may cause the vibration quantity change, thus get incorrect conclusions.

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