Research on Nearfield Acoustic Holography. Technique for Noise Source Identification in Room

Autor: Darren Hallman, Hiroshi Takata, Stuart J. Bolton
Rok vydání: 1995
Předmět:
Zdroj: TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series C. 61:1496-1502
ISSN: 1884-8354
0387-5024
DOI: 10.1299/kikaic.61.1496
Popis: It is not possible to apply nearfield acoustic holography (NAH) for the acoustic field composed of reflected waves. To apply NAH properly it is necessary to separate incoming and outgoing waves. In order to identify noise sources in enclosures using NAH a technique for such separation is required. In this work a new technique involving analysis of acoustic pressure on two parallel planes near a noise source is presented and tested by using a speaker.
Databáze: OpenAIRE