Increasing the Accuracy of Measurements of Air Flow Velocity with an Acoustic Anemometer

被引：0
|
作者：
S. Z. Shkundin
V. A. Rumyantseva
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来源：
Measurement Techniques | 2001年 / 44卷
关键词：
Reflection; Physical Chemistry; Analytical Chemistry; Flow Velocity; Wall Thickness;
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学科分类号：
摘要：
The physical principles of the operation of an acoustic anemometer are considered. An improved model of the anemometer channel, which takes into account the thickness of the waveguide-air duct walls is described. The results of a calculation of the reflection coefficient of the open end of a waveguide with rectangular flanges for one of the normal modes when there is an air flow are presented. The acoustic pressure field on the wall of the anemometer channel is calculated and the effect of the wall thickness on the choice of the optimum acoustic anemometer parameters is estimated.
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页码：87 / 92
页数：5
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