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Microphones with rigidly supported piezopolymer membranes

 

作者: R. Lerch,   G. M. Sessler,  

 

期刊: The Journal of the Acoustical Society of America  (AIP Available online 1980)
卷期: Volume 67, issue 4  

页码: 1379-1381

 

ISSN:0001-4966

 

年代: 1980

 

DOI:10.1121/1.384136

 

出版商: Acoustical Society of America

 

数据来源: AIP

 

摘要:

Piezoelectric microphones are described which utilize a rigidly supported, curved polyvinylidene fluoride membrane. The microphones can be designed with a resonance frequency of about 5 kHz and a sensitivity of −55 to −60 dBV per N/m2. The harmonic distortion is typically below 1% for sound‐pressure levels up to 100 dB. Advantages of these microphone structures are the well‐defined geometry of the membrane, good mechanical and thermal stability, and the possibility of varying the membrane tension and introducing damping by the membrane support.

 

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