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Magnetic Amplifier for Use at 4.2°K

 

作者: C. L. Foiles,  

 

期刊: Review of Scientific Instruments  （AIP Available online 1967）
卷期: Volume 38, issue 6  

页码: 731-733

 

ISSN:0034-6748

 

年代: 1967

 

DOI:10.1063/1.1720877

 

出版商: AIP

 

数据来源: AIP

 

摘要:

A magnetic amplifier used at 4.2°K to measure small dc voltages is described. A sensitivity of 5×10−3&mgr;V was obtained without any precaution other than second harmonic detection for eliminating ac noise. Suggestions for increased sensitivity and comparisons with other techniques are given.

 

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