Rayl
Physical unit | |
---|---|
Unit name | Rayl |
Unit symbol | , |
Physical quantity (s) | Acoustic impedance |
Formula symbol | |
dimension | |
system | CGS system of units |
In SI units | |
In CGS units | |
Named after | Lord Rayleigh |
Derived from | Centimeter , gram , second |
The Rayl (named after the English physicist John William Strutt, 3rd Baron Rayleigh ) is an outdated and illegal unit of the specific acoustic impedance . There are two different definitions that differ by an order of magnitude:
- In the CGS system of units :
- In the MKS unit system :
Individual evidence
- ↑ Holger Pettersson, Gustav Konrad von Schulthess, David J. Allison: The Encyclopaedia of Medical Imaging: Physics, techniques and procedures / volume editors, Gustav K. von Schulthess, Hans-Jørgen Smith . Informa Health Care, 1998, ISBN 82-91942-01-3 .
- ^ François Cardarelli: Encyclopaedia of scientific units, weights, and measures . Springer, 2003, ISBN 1-85233-682-X , pp. 555 ( limited preview in Google Book search).
- ↑ Often referred to as the original definition.
- ^ Z. Maekawa, Peter Lord: Environmental and architectural acoustics . Taylor & Francis, 1994, ISBN 0-419-15980-0 , pp. 366 .