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A Sensitive Differential Manometer

 

作者: William Hurst,  

 

期刊: Review of Scientific Instruments  (AIP Available online 1939)
卷期: Volume 10, issue 1  

页码: 27-29

 

ISSN:0034-6748

 

年代: 1939

 

DOI:10.1063/1.1751433

 

出版商: AIP

 

数据来源: AIP

 

摘要:

A portable sensitive differential manometer is described. The instrument consists essentially of a train of gears from a small jeweled wrist watch movement and a drum covered with a rubber diaphragm. The design is such as to permit the measurement of rapid and slight variations of pressure. The pressure variations may be as small as 0.0012 cm of mercury and as rapid as 15 per second. The above sensitivity may be increased by a factor of approximately 10 by increasing the effective volume behind the moving diaphragm.

 

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