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Some Uses of Pressure Gradient Microphones for Acoustic Measurements

 

作者: Irving Wolff,   Frank Massa,  

 

期刊: The Journal of the Acoustical Society of America  (AIP Available online 1931)
卷期: Volume 3, issue 1A  

页码: 9-10

 

ISSN:0001-4966

 

年代: 1931

 

DOI:10.1121/1.1901929

 

出版商: Acoustical Society of America

 

数据来源: AIP

 

摘要:

The difference between microphones whose action depends on the pressure and those whose action depends on the pressure gradient in the sound wave is pointed out, and illustrations are given of each type. The characteristics of the pressure gradient in a complex sound field is discussed. It is shown that under certain conditions the pressure gradient gives a measure of the particle velocity in the sound wave. Illustrations and experiments are described which show how the vector characteristics of the pressure gradient may be used to advantage in making acoustic measurements.

 

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