Acoustic power flow measurement in a thermoacoustic resonator by means of laser Doppler anemometry (LDA) and microphonic measurement

被引:41
作者
Bailliet, H [1 ]
Lotton, P [1 ]
Bruneau, M [1 ]
Gusev, V [1 ]
Valière, JC [1 ]
Gazengel, B [1 ]
机构
[1] Univ Maine, Acoust Lab, UMR CNRS 6613, IAM, F-72085 Le Mans 9, France
关键词
acoustic power flow; laser Doppler anemometry; thermoacoustics; sound measurement;
D O I
10.1016/S0003-682X(99)00046-8
中图分类号
O42 [声学];
学科分类号
070206 [声学]; 082403 [水声工程];
摘要
Acoustic power flow measurements in the resonator of a thermoacoustic refrigerator are described. The technique of measurement is based on particle velocity measurement by laser Doppler anemometry (L.D.A.) together with microphonic acoustic pressure measurement. The calibration procedure is explained and results of measurements are compared with analytical results. The L.D.A. technique permits the measurement of acoustic power flow at almost any position and for almost any working frequency in the resonator of thermoacoustic devices. (C) 2000 Elsevier Science Ltd. All rights reserved.
引用
收藏
页码:1 / 11
页数:11
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