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Date of Publication:2022-10-10

Journal:实验技术与管理

Volume:35

Issue:5

Page Number:102-105,110

ISSN No.:1002-4956

Abstract:Based on the AMR(anisotropic magnetoresistance)sensors,the circuit is designed and an environmental magnetic field measuring instrument is made.The functions of the magnetic field signal acquisition,signal processing,result display,etc.,are realized.This instrument has the characteristics of high precision,good stability and low cost.It is convenient to operate and has strong portability,and it can meet the diversified needs for the university experimental teaching and outdoor environmental magnetic field measurement.

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