Document Detail


Low frequency electret condenser microphone.
MedLine Citation:
PMID:  18189669     Owner:  NLM     Status:  In-Data-Review    
Abstract/OtherAbstract:
A condenser microphone has been fabricated for measuring low-frequency sound pressure. The goal of this design is to keep the background noise as low as possible. The microphone features a high membrane compliance with a large backchamber volume, a prepolarized backplane, and a high impedance preamplifier located inside the backchamber. Methods for characterizing the performance of the microphone will be presented including background noise levels, which will be compared to commercially available microphones.
Authors:
Christopher C Lawrenson; Allan J Zuckerwar; Qamar A Shams
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  The Journal of the Acoustical Society of America     Volume:  122     ISSN:  1520-8524     ISO Abbreviation:  J. Acoust. Soc. Am.     Publication Date:  2007 Nov 
Date Detail:
Created Date:  2008-01-14     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  7503051     Medline TA:  J Acoust Soc Am     Country:  United States    
Other Details:
Languages:  eng     Pagination:  2959     Citation Subset:  IM    
Affiliation:
PCB Piezotronics, 3425 Walden Ave., Depew, NY 14043NASA Langley Res. Ctr., Hampton, VA 23681.
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