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Velocity level (dB re 10-8 m/sec) |
| The level of a vibration velocity in decibels. The level is sometimes labeled vdB. Both the measured and the reference quantities must be either peak or rms values. |
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Vibration hanger |
| A device consisting of an elastomeric element, a metal spring or a combination of both used to isolate a vibrating machine or a ceiling from the overhead support structure. |
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Vibration isolator |
| A device consisting of an elastomeric element, a metal spring or a combination of both used to isolate a vibrating machine from the support structure. |
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Vibration |
| The periodic motion of a surface or a machine. It may be perceived as a sensation by the body, or it may set the air into motion and create a sound wave. |
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