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A Double Tube Vacuum Tube Voltmeter

 

作者: Walter C. Michels,  

 

期刊: Review of Scientific Instruments  (AIP Available online 1938)
卷期: Volume 9, issue 1  

页码: 10-12

 

ISSN:0034-6748

 

年代: 1938

 

DOI:10.1063/1.1752338

 

出版商: AIP

 

数据来源: AIP

 

摘要:

By the use of two type 37 vacuum tubes it has been found possible to design a high impedance voltmeter which possesses an approximate voltage squared characteristic, and is therefore suitable for the measurement of r.m.s. values of alternating potentials. The circuit of the voltmeter is such as to make the readings independent of appreciable fluctuations of the battery potential supplied to the tubes.

 

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