Vibrations are very peculiar phenomenon happening all around in nature. Science explains them as perpendicular movement of medium material. Whenever there is a wave passing through medium, there is disturbance that happens in the medium and this disturbance might leave energy behind with the medium particles. This excess energy initiates vibrations. Like everything, vibrations too have pros and cons. Engineers have developed various instruments that make use of vibrations (since they purely represent energy) but the darker side of vibrations sees them as disturbing phenomenon. To control this excess energy from disturbing an already established system, vibration control has been devised.
In past days, mechanical methods were employed to reduce vibrations since we did not have electronic control. Earlier methods included vibration dampers and fly wings, were installed to kill vibrations. But now as we have electronic control, control vibration is done with its help. To suppress vibration instruments supply an equal and opposite force to hold it steady. In some instruments the excess vibration energy is transmitted to outside system on continuous basis.
Vibrations have negative effect on many systems. For example the sound system around us sometimes creaks badly, that is because of the vibrations that are present in the system around it. But all industrial applications require an atmosphere without vibrations.
Vibration control is used in almost every sector now. There is always a special demand from the precision engineering industries that make a call for better and better controllers. . An application like semiconductor chip development is very detailed and steady process. Vibrations produced within the system hampers the process, thus controllers have been installed to take care of the problem. Similar to this most of the metallurgical applications demand a stable climate. An interesting application of vibration controllers can be seen in latest helicopters. Due to heavy mechanical movement, helicopters were subjected to large vibrations which were passed to passengers. But with controllers in position, vibrations have been cut short to great level. There is no much weight gain since controllers are not very heavy.
Precision instrumentation demands stable atmosphere. However, with vibrations in neighborhood, stable system is a dream. Even in the minutest of the wire that transmit power, vibrations are developed. That is why we cannot ‘do away’ with vibrations, only control them. Controllers have been developed that divert the energy of the system and waste it outside the mainframe thus preventing the system from moving into resonance.
Vibration controllers are brilliant devices to be used in almost all industrial applications. Use of vibration controllers will do two benefits at the same time. Firstly the core process will remain steady and output will be improved and secondly the power consumption will reduce considerably. Since vibrations result into energy loss, their damping will automatically tell the system to draw lesser energy from the source. There are few industrial device makers that have moved in the arena of vibration controllers. Rates of the controllers are still high in spite of the fact that there is wide scope for improvement.
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