Acoustic Holography With Incoherent Sources
Authors: Druyvesteyn, W. F.; Raangs, R.
Source: Acta Acustica united with Acustica, Volume 91, Number 5, September/October 2005 , pp. 932-935(4)
Publisher: S. Hirzel Verlag
Abstract:In near field acoustic holography the sound field is scanned near the surface of the vibrating object; from these measurements the vibration of the structure can be calculated. In the case of correlated sources one reference signal is sufficient. When incoherent sources are present the separation of the different sound fields is difficult. Using, instead of a pressure microphone, a particle velocity sensor from which the particle velocity vector is calculated the incoherent sound fields can be separated.
Document Type: Research Article
Publication date: September 1, 2005
- Acta Acustica united with Acustica, published together with the European Acoustics Association (EAA), is an international, peer-reviewed journal on acoustics. It publishes original articles on all subjects in the field of acoustics, such as general linear acoustics, nonlinear acoustics, macrosonics, flow acoustics, atmospheric sound, underwater sound, ultrasonics, physical acoustics, structural acoustics, noise control, active control, environmental noise, building acoustics, room acoustics, acoustic materials, acoustic signal processing, computational and numerical acoustics, hearing, audiology and psychoacoustics, speech, musical acoustics, electroacoustics, auditory quality of systems. It reports on original scientific research in acoustics and on engineering applications. The journal considers scientific papers, technical and applied papers, book reviews, short communications, doctoral thesis abstracts, etc. In irregular intervals also special issues and review articles are published.
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