elib
DLR-Header
DLR-Logo -> http://www.dlr.de
DLR Portal Home | Imprint | Contact | Deutsch
Fontsize: [-] Text [+]

Optical measurement of acoustic pressure amplitudes—at the sensitivity limits of Rayleigh scattering

Rausch, Anne and Fischer, André and Kings, Nancy and Bake, Friedrich and Röhle, Ingo (2012) Optical measurement of acoustic pressure amplitudes—at the sensitivity limits of Rayleigh scattering. Optics Letters, Vol 37 (No. 13), pp. 2685-2687. Optical Society of America.

Full text not available from this repository.

Official URL: http://www.opticsinfobase.org/ol/upcomingissue.cfm

Abstract

Rayleigh scattering is a measurement technique applicable for the determination of density distributions in various technical or natural flows. The current sensitivity limits of the Rayleigh scattering technique were investigated experimentally. It is shown that it is possible to measure density oscillations caused by acoustic pressure oscillations noninvasively and directly. Acoustical standing waves in a rectangular duct were investigated using Rayleigh scattering and compared to microphone measurements. The comparison showed a sensitivity of the Rayleigh scattering technique of 75 Pa (7 · 10^(−4) kg∕m3) and a precision of 14 Pa (1 · 10^(−4) kg∕m3). Therefore, it was also shown that Rayleigh scattering is applicable for acoustic measurements.

Document Type:Article
Title:Optical measurement of acoustic pressure amplitudes—at the sensitivity limits of Rayleigh scattering
Authors:
AuthorsInstitution or Email of Authors
Rausch, AnneDLR, AT-TA
Fischer, AndréDLR, AT-TA
Kings, NancyDLR, AT-TA
Bake, FriedrichDLR, AT-TA
Röhle, IngoDLR, AT-TU
Date:1 July 2012
Journal or Publication Title:Optics Letters
Refereed publication:Yes
In Open Access:No
In SCOPUS:Yes
In ISI Web of Science:Yes
Volume:Vol 37
Page Range:pp. 2685-2687
Publisher:Optical Society of America
Series Name:Optics Letters
Status:Published
Keywords:sensitivity limits of Rayleigh scattering, density oscillations, acoustic pressure oscillation, microphone measurements,
HGF - Research field:Energy, Aeronautics, Space and Transport
HGF - Program:Efficient Energy Conversion and Use, Aeronautics
HGF - Program Themes:Power Plants, Propulsion Systems
DLR - Research area:Energy, Aeronautics
DLR - Program:E VG - Combustion and Gas Turbine Technologies, L ER - Engine Research
DLR - Research theme (Project):E - Gasturbine, L - Combustion Chamber Technologies
Location: Köln-Porz
Institutes and Institutions:Institute of Propulsion Technology > Turbine
Institute of Propulsion Technology > Engine Acoustic
Deposited By: Dr.-Ing. Peter-Anton Giess
Deposited On:22 Aug 2012 11:19
Last Modified:26 Mar 2013 13:41

Repository Staff Only: item control page

Browse
Search
Help & Contact
Informationen
electronic library is running on EPrints 3.3.12
Copyright © 2008-2012 German Aerospace Center (DLR). All rights reserved.