| Datensatz noch nicht abgeschlossen | |
| Zugriffsnummer | 45548 |
| Dokumenttyp | Zeitschriftenartikel |
| Peer Review | unbekannt |
| Sprache | Englisch |
| Titel | Calibration of underwater sound transducers in the frequency Rrange 75 kHz to 2 MHz |
| Autor(in); Institution |
Koppelmann, Jan; 5.14, Ultraschall, PTB-Braunschweig
Brendel, K.; PTB-Braunschweig
Wolf, J.; PTB-Braunschweig
|
| Quelle/Jahr | Acta Acustica united with Acustica: 25 (1971), 2, 73 - 80 |
| ISSN | 0001-7884 (PRINT) ; 1861-9959 (ONLINE) |
| Verlag | Stuttgart: Hirzel |
| Zusammenfassung | An underwater microphone possesses a complicated directivity pattern in the megahertz frequency range so that a calibration by a reciprocity method with three transducers at these frequencies is only possible by a very accurate adjustment of the orientation of the transducers. In order to overcome the difficulty a two-transducer procedure is followed. Firstly the transmitting sensitivity of an auxiliary transducer is obtained using a selfreciprocity technique and then the microphone under test is calibrated in the known sound field of the auxiliary transducer. The feature of this procedure is that at a relatively small effort a good accuracy of measurement is obtainable. |
