| Zugriffsnummer | 44570 |
| Dokumenttyp | Zeitschriftenartikel |
| Peer Review | mit Peer Review |
| Sprache | Englisch |
| Titel | A laboratory study for occupational safety and health on the structure of airborne ultrasound fields |
| Autor(in); Institution |
Schöneweiß, Robert; 1.6, Schall, PTB-Braunschweig
Kling, Christoph; 1.6, Schall, PTB-Braunschweig
Koch, Christian; 1.6, Schall, PTB-Braunschweig
|
| Quelle/Jahr | Acta Acustica: 4 (2020), 4, 1 - 12 |
| Artikelnummer | 12 |
| Availability | [online only] |
| ISSN | 2681-4617 |
| DOI | |
| URL | |
| Verlag | Les Ulis: EDP Sciences |
| Klassifikationscode | PACS: 43.35.+d ; PACS: 43.35.Zc ; PACS: 43.50.+y ; PACS: 43.58.Fm ; PACS: 43.58.+z ; PACS: 43.60.+d ; PACS: 87.50.yk |
| Freie Schlagworte | Airborne ultrasound ; Measuring system ; Spatial scanning of sound pressure levels ; Sound field mapping ; Ultrasonic noise |
| Zusammenfassung | While exposure to airborne ultrasound is increasing in occupational contexts and in public and private spaces, existing demand for reliable and traceable determination of exposure to sound with frequencies above 16 kHz cannot currently be satisfied due to a lack of adequate measurement devices and procedures adapted to the specifics of airborne ultrasound. So that this study may serve as a first step for the development of a novel measurement procedure, its aim is to create a comprehensive database of the structures of airborne ultrasound fields present in occupational contexts. Based on this, the limitations of measurement procedures commonly used in the audible frequency range are clarified and the structural characteristics of airborne ultrasound fields investigated. This paper presents a laboratory study of the structure of the airborne ultrasound field of an ultrasonic welding machine, which can be considered a representative occupational source of airborne ultrasound. For this study, the technical and procedural requirements of a measuring system are derived and used to set up and calibrate a measuring system for three-dimensional, high spatial-resolution scans of sound pressure levels in the laboratory. The measurement results reveal complex, extensive and very fine-structured interference patterns, some of which have sound pressure levels of up to 138 dB (re 20 μPa). |
| Kostenfreier Zugang | Open Access Gold |
| Rechteinformation | CC BY 4.0 ; Creative Commons Attribution 4.0 License |
| Themenbereich der Metrologie | Akustik, Ultraschall, Beschleunigung |
| Forschungsprojekt | 15HLT03: Ears II: Metrology for modern hearing assessment and protecting public health from emerging noise sources |
| Förderinformationen (1) |
Förderername: European Commission (EC)
Förderer ID: 0000 0001 2242 8989 Förderer ID Typ: ISNI Förderprogramm: EMPIR 2015 Health Titel der Förderung: 15HLT03: Ears II: Metrology for modern hearing assessment and protecting public health from emerging noise sources Förderungsnummer: 15HLT03 URI der Förderung: http://www.ears-project.eu/ears2-project.html |