A new compact 2D planar fluxgate sensor with amorphous metal core

被引：55

作者：

Kejík, P

Chiesi, L ^{[1
]}

Janossy, B

Popovic, RS

机构：

[1] Swiss Fed Inst Technol, Dept Microengn, CH-1015 Lausanne, Switzerland

[2] Czech Tech Univ, Dept Measurement, Prague 16627, Czech Republic

来源：

SENSORS AND ACTUATORS A-PHYSICAL | 2000年 / 81卷 / 1-3期

关键词：

compass; planar coils; fluxgate sensor; amorphous ferromagnetic ribbons;

D O I：

10.1016/S0924-4247(99)00083-7

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：

A new compact 2D planar fluxgate sensor using a ferromagnetic amorphous metal core is described, The fluxgate sensor consists of two orthogonal planar metallic coils and a ring shaped amorphous magnetic ribbon mounted on a PCB substrate. Each planar coil is used alternatively as excitation or as pick-up coil. An electronic interface drives alternatively the two coils and performs a feedback on each sensing coil in order to compensate for the two measured magnetic field components. The sensing element has a magnetic sensitivity of 55 V/mT at an excitation frequency of 8.4 kHz with a 160 mA(peak) driving current. Used as an electronic compass, the reached precision angle is better than 1 degrees. (C) 2000 Elsevier Science S.A, All rights reserved.

引用

页码：180 / 183

页数：4