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The Use of Electrets in Electrical Instruments

 

作者: Andrew Gemant,  

 

期刊: Review of Scientific Instruments  （AIP Available online 1940）
卷期: Volume 11, issue 2  

页码: 65-71

 

ISSN:0034-6748

 

年代: 1940

 

DOI:10.1063/1.1751644

 

出版商: AIP

 

数据来源: AIP

 

摘要:

An electret is a permanently electrically polarized material and exhibits an electric field near its free surface which keeps undiminished for years. It is possible to utilize this field in electrical appliances. Experiments and devices on this line are described in the following paper.

 

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