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On the Piezoelectric Properties of Tourmaline

 

作者: Gerald W. Fox,   Morris Underwood,  

 

期刊: Journal of Applied Physics  (AIP Available online 1933)
卷期: Volume 4, issue 1  

页码: 10-13

 

ISSN:0021-8979

 

年代: 1933

 

DOI:10.1063/1.1745137

 

出版商: AIP

 

数据来源: AIP

 

摘要:

Oscillating piezoelectric plates of different frequencies have been made from California and South African Tourmaline. These plates have a frequency response of approximately 3770 kc per millimeter of thickness. The temperature coefficient for both specimens was found to be negative and is about 35.5 parts per million per degree centigrade for the African specimen and 38.1 parts per million per degree centigrade for the California crystal. Comparison of the tourmaline plates with a Y‐cut quartz plate of the same size and frequency shows the tourmaline oscillators decidedly inferior on the basis of power output.

 

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