Abstract
The upper frequency limit of a p-p sound intensity probe with a
certain microphone separation distance is generally considered to
be the frequency at which an ideal p-p probe with the same
separation distance would exhibit an acceptably small finite
difference error in a plane wave of axial incidence. It is shown
in this paper that the resonances of the cavities in front of the
microphones in the usual 'face-to-face' configuration give rise to
a pressure increase that to some extent compensates for the finite
difference error. Thus the operational frequency range of the
intensity probe can be extended to an octave above the limit
determined by the finite difference error if the length of the
spacer between the microphones equals the diameter.
| Original language | English |
|---|---|
| Title of host publication | Inter-Noise 96 - The 1996 International Congress on Noise Control Engineering, 25th Anniversary Congress - Liverpool, Proceedings : Noise Control - The Next 25 Years |
| Volume | Books 1-6 |
| Place of Publication | St. Albans |
| Publisher | Institute of Acoustics |
| Publication date | 1996 |
| Pages | 3357-3362 |
| ISBN (Print) | 1-873082-91-6 |
| Publication status | Published - 1996 |
| Event | International Congress on Noise Control Engineering: Noise control: The Next 25 Years - Liverpool, United Kingdom Duration: 30 Jul 1996 → 2 Aug 1996 Conference number: 25 |
Conference
| Conference | International Congress on Noise Control Engineering |
|---|---|
| Number | 25 |
| Country/Territory | United Kingdom |
| City | Liverpool |
| Period | 30/07/1996 → 02/08/1996 |