磁通门测磁传感器的特性分析  

Characteristic Analysis of the Transducer of a Fluxgate Magnetometer

作　　者：王正华[1] 

机构地区：[1]上海交通大学自动控制系

出　　处：《上海交通大学学报》1992年第2期91-98,共8页Journal of Shanghai Jiaotong University

摘　　要：本文从磁通门的物理概念出发,导出传感器测量弱磁场的空载和负载传递系数,推导方法较简单,其结果适用各种激磁波形的传感器,并进一步阐明负载对传感器特性的影响,从而可按实际需要设计传感器的负载电路.The flux-gate magnetometer may be used for measuring a D.C.or low- frequency weak magnetic field.Now it is widely applied to measurement,survey, control,alarm and ignition in magnetics.There are many papers[1,2]that may berefered to.But in them,owing to non-linearity of the core,the methods of analysis and computation are very complicated and are confined to the unload- characteristics.This paper,by deducing the unload and load-transformation func- tions of the transducer form,the physical conception of“flux-gate”is clearer and simpler in the deductive method.The results in this paper expounds the eff- ect of load on the transducer's charateristics.Thus the load circuit may be design- ed according to practical needs.

关 键 词：磁通门 磁强计 传感器 磁场 测量 

分 类 号：TM937.1[电气工程—电力电子与电力传动]