| Zugriffsnummer | 28798 |
| Dokumenttyp | Konferenzartikel |
| Peer Review | unbekannt |
| Sprache | Englisch |
| Titel | Qualification of laboratories for sound power determinations |
| Autor(in); Institution |
Bethke, Christian; 1.7, Akustik und Dynamik, PTB-Braunschweig
Wittstock, Volker; 1.7, Akustik und Dynamik, PTB-Braunschweig
|
| Quelle/Jahr | AIA-DAGA 2013 : proceedings of the International Conference on Acoustics:(2013), 1092 - 1094 |
| Availability | [CD-ROM] ; file name: 000496.pdf |
| ISBN | 978-3-939296-05-8 |
| Verlag | Berlin: DEGA |
| Konferenzangaben | AIA-DAGA 2013, International Conference on Acoustics, including the 39th German Annual Conference on Acoustics, Merano, 18-21, March, 2013, Italy |
| Freie Schlagworte | sound power ; free-field test ; room correction K2 |
| Zusammenfassung | The sound emission from technical equipment and household appliances is characterised by the sound power. Sound powers can be determined by various methods, e.g. by enveloping surface methods using sound intensity or sound pressure. Especially for the latter method, special laboratory rooms are required which provide an essentially free-field over a reflecting plane. Within a cooperation with BSH Bosch und Siemens Hausgeräte GmbH, PTB performed qualification measurements in three similar rooms. The qualification procedure according to annex A of ISO 3745 was applied and the measurement results could be compared to results from another testing institute obtained for one room. Additionally, the room correction K2 according to ISO 3744 was determined on several box-shaped surfaces. The results of the different qualification procedures are compared and recommendations are given how to handle the room correction K2 in such rooms. |
