Particle velocity level
From Wikipedia, the free encyclopedia
| Sound measurements |
|---|
| Sound pressure p |
| Sound pressure level (SPL) |
| Particle velocity v |
| Particle velocity level (SVL) |
| (Sound velocity level) |
| Particle displacement ΞΎ |
| Sound intensity I |
| Sound intensity level (SIL) |
| Sound power Pac |
| Sound power level (SWL) |
| Sound energy density E |
| Sound energy flux q |
| Acoustic impedance Z |
| Speed of sound c |
The particle velocity level or the sound velocity level tells the ratio of a sound incidence in comparison to a reference level of 0 dB in a medium, mostly air.
It shows the ratio of the particle velocity v1 and the particle velocity v0.
The particle velocity level is:
where v1 and v0 are the velocities.
The particle velocity level has the letter "Lv".
The unit of the particle velocity level is named "dB".
Notice: The dB is dimensionless.
If v0 is the standard reference particle velocity of:
we use "dB SVL". (SVL = sound velocity level).
Sound particle velocity v should not be confused with Sound velocity c.
