Review of LDA and PIV applied to the measurement of sound and acoustic streaming

A review of laser Doppler anemometry (LDA) and particle image velocimetry (PIV) with their application to the measurement of sound is presented. The fundamental principles behind LDA and PIV are discussed and extended to the application of sound measurement. Special attention is paid to analysis of...

Full description

Saved in:
Bibliographic Details
Published in:Optics and laser technology 2000-10, Vol.32 (7), p.629-639
Main Authors: Campbell, M., Cosgrove, J.A., Greated, C.A., Jack, S., Rockliff, D.
Format: Article
Language:English
Subjects:
Acoustics
LDA
Measurement
PIV
Sound
Streaming
Velocimetry
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:A review of laser Doppler anemometry (LDA) and particle image velocimetry (PIV) with their application to the measurement of sound is presented. The fundamental principles behind LDA and PIV are discussed and extended to the application of sound measurement. Special attention is paid to analysis of LDA signals including the Hilbert transform, which enables amplitude information to be obtained about various frequency components of a signal and wavelet analysis, which allows non-stationary signals to be accurately analysed. The influence of the refractive index variations in a medium due to a sound wave on the laser beams of an LDA signal is discussed. Attention is also paid to acoustic streaming which arises due to high-intensity sound, and PIV results are presented to demonstrate the effect.
ISSN:0030-3992
1879-2545
DOI:10.1016/S0030-3992(00)00091-8