Szczegóły publikacji
Opis bibliograficzny
Measurement system for harmonic source noise directivity definition, based on phase correlation in multimicrophone configuration / Michał Kozupa, Robert BARAŃSKI, Tadeusz WSZOŁEK, Paweł PAWLIK // W: Inter-noise 2023 [Dokument elektroniczny] : 20–23 August 2023, Chiba, Japan. — Wersja do Windows. — Dane tekstowe. — [Japan : International Institute of Noise Control Engineering], [2023]. — Dysk Flash. — S. [1181–1186]. — Wymagania systemowe: Adobe Reader. — Bibliogr. s. [1185–1186], Abstr.
Autorzy (4)
- Kozupa Michał
- AGHBarański Robert
- AGHWszołek Tadeusz
- AGHPawlik Paweł
Dane bibliometryczne
| ID BaDAP | 148643 |
|---|---|
| Data dodania do BaDAP | 2023-09-22 |
| Rok publikacji | 2023 |
| Typ publikacji | materiały konferencyjne (aut.) |
| Otwarty dostęp |  |
Abstract
The paper is aimed at describing the measurement system for noise propagation of strictly harmonic noise source like electrical transformer. The system consists of fourteen microphones with phase calibration, equally spaced around the tested object in three distances. Electrical transformer is source of stationary and harmonic noise creating acoustic filed with many phase interactions. This acoustic wave correlations create positive and negative phase interference in the acoustic near field called also reactive field. The described measurement system can define the wave front for every frequency emitted by the source, thus allows to analyze the phase interference in the acoustic field. The phase interference comes from noise propagation of the transformer tank having complex vibration deflection shapes. The study and results allow for better understanding and definition of the critical distance for the reactive acoustic field created by multi-harmonic noise sources like transformers.