Reducing hysteresis in magnetostrictive-piezoelectric magnetic sensors

被引：19

作者：

Prieto, JL ^{[1
]}

Aroca, C

Lopez, E

Sanchez, MC

Sanchez, P

机构：

[1] Univ Complutense Madrid, Fac CC Fis, Dept Fis Mat, E-28040 Madrid, Spain

[2] Univ Politecn Madrid, Dept Fis Aplicada, ETS Ing Telecommun, E-28040 Madrid, Spain

来源：

IEEE TRANSACTIONS ON MAGNETICS | 1998年 / 34卷 / 06期

关键词：

hysteresis reduction; magnetic sensors;

D O I：

10.1109/20.728303

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

In this paper, we present a method to avoid hysteresis in magnetostrictive-piezoelectric sensors. It is based on the application of an alternating magnetic field of a frequency different than the piezoelectric exciting frequency that supplies enough energy to; overcome any domain wall pinning. The signal is filtered with a notch filter synchronized to the magnetic field frequency and thus it does not contribute to the useful response of the sensor. The results show an appreciable decrease in the magnetic hysteresis and also a small decrease in the sensibility of the sensor.

引用

页码：3913 / 3915

页数：3

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