Shockwave motion pulse device
The shocks are received by the SPM transducer which then gives an output signal proportional to the magnitude of the shock felt. Other mechanical factors like roughness of the raceways, the stress and damages.That means between the prime mover and the load. The thickness of the oil film, which in turn depends on preload and the quantity of oil supplied as well as the viscosity of the oil.Rolling velocity which is a function of speed or rotation and size of bearing.
![shockwave motion pulse device shockwave motion pulse device](https://i.ytimg.com/vi/9QXavVNiETA/mqdefault.jpg)
The amplitude of shock pulses measured by the SPM meter is due to the following factors: This helps the accelerometers to measure both shock pulse as well as vibration making other vibration pens only measuring vibration obsolete. The accelerometers have piezoelectric crystals so designed that they resonate at a frequency of 36 KHz which corresponds to the frequency of the pure shock pulses. The shock pulses are measured by accelerometers with filters. This type of monitoring and maintenance based on this evaluation is called as Condition Monitoring System or Condition Based Monitoring. Initially these shocks or vibrations are subtle and hardly felt till already damage is done, but these are captured routinely by the SPM machine which tells about the condition of the bearings, the state of lubrication and the maintenance interval required. Whether new or old, any bearing generates shocks in the interface between the loaded roller element and the race way. Thus the inaccuracies that are frequently encountered by hand held vibration analysis pens is not here, especially in machinery with flexible mountings and working in vicinity of other vibration prone machinery.Īnother difference between SPM and other vibration measurement techniques is that in SPM the transducers respond and resonate to a frequency of 36 KHz only, which ensures a calibrated response and accurate measurement to the shock pulses. vibration is filtered out as it is depending on the structure and the material of the machine.
![shockwave motion pulse device shockwave motion pulse device](https://i.ytimg.com/vi/1HW_Uhztx68/maxresdefault.jpg)
The frequency of this vibration is dependent on stiffness, shape, mass and the dampening property of the material. This shock wave is utilized in the SPM.Īs impact continues the metal flexes and is compressed and recoils. The shock wave is in ultrasonic range and is around 36 KHz. When two metal surfaces contact each other while in motion, an impact occurs and a shock wave develops, which travels through the metal.