Acoustic ohm
Acoustic ohm :
Any one of several units measuring sound resistance. These units got their name by analogy with electric resistance, which is measured in ohms. The sound resistance across a surface in a given medium is defined to be the pressure of the sound wave at the surface divided by the volume velocity. Unfortunately, the result is often stated in "acoustic ohms" no matter what units are used to measure pressure and time. In the CGS system, the acoustic ohm equals 1 microbar second per cubic centimeter (bar s/cm3), which is the same as 1 dyn s/cm5. In the MKS system, the acoustic ohm is equal to the SI unit, 1 pascal second per cubic meter (Pa s/m3), or 1 N s/m5. The CGS acoustic ohm equals 105 MKS acoustic ohms. See: Rayl
No records Found