Novel Magnetic Field and Current Sensors Based on Superparamagnetic Transducers

被引：2

作者：

Vourc'h, Eric ^{[1
]}

Joubert, Pierre-Yves ^{[1
]}

Cinquin, Guillaume ^{[1
]}

Maniouloux, Yohan ^{[2
]}

Cima, Lionel ^{[2
]}

机构：

[1] CNRS, ENS Cachan, SATIE, F-94230 Cachan, France

[2] Billanco Sarl, F-94230 Cachan, France

来源：

SENSOR LETTERS | 2009年 / 7卷 / 03期

关键词：

Magnetic Field Sensor; Current Sensor; Superparamagnetism; Analytical Modeling; Demonstration Prototype;

D O I：

10.1166/sl.2009.1063

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

A new DC and AC magnetic field or current sensor implementing a superparamagnetic transducer is presented. The sensor concept consists in exploiting the non-linearity of the magnetization curve of a superparamagnetic material so as to determine the intensity of the magnetic field via the measurement of the second order harmonic of the electromotive force at the ends of a sensing coil. An analytical model for a first prototype is reported, experimental evaluations are carried out over a 0 A to 500 A range and finally experimental results are compared to the model.

引用

页码：293 / 298

页数：6

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