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Spatial Fourier transform method for evaluating SQUID gradiometers

 

作者: P. Costa Ribeiro,   A. C. Bruno,   C. C. Paulsen,   O. G. Symko,  

 

期刊: Review of Scientific Instruments  （AIP Available online 1987）
卷期: Volume 58, issue 8  

页码: 1510-1513

 

ISSN:0034-6748

 

年代: 1987

 

DOI:10.1063/1.1139390

 

出版商: AIP

 

数据来源: AIP

 

摘要:

A simple method of measuring the spatial transfer function of a gradiometer, consisting of a flux transformer coupled to a SQUID, is presented and it is compared with theoretical predictions. Based, on this approach, a new method of reporting a gradiometer’s performance is proposed; the rejection factor is expressed in decibels obtained directly from the transfer function plot.

 

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