基于带电直导线周围磁场的磁传感器动静态特性标定方法.pdf

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1、第27卷第l0期传感技术学报Vo1．27No．102014年10月CHINESEJOURNALOFSENSORSANDACTUATORS0ct．2014CalibrationMethodBasedontheMagneticFieldAroundtheWireElectricStraightStaticandDynamicPropertiesofMagneticSensorsLAIZhengxi，ZHANGXiaoming'，YANGGuohuan，ZHAODaidi(1．In~strumentsandE

2、lectronicEngineering，NorthUniversity，Taiyuan030051，China；2．KeyLaboratoryforElectronicMeasurementTechnology，NorthUniversity，Taiyuan030051，China)Abstract：Currentlymagneticsensorsusedforstaticorquasi-staticmagneticfieldofenvironmentalmeasuring，whenrapidchan

3、gesinthemeasuredmagneticfieldvector，thedynamiccharacteristicsofthemagneticsensorisakeyfactoraffectingthemeasurementaccuracy．Forthetestsiteenvironmentisdificulttogenerateastandardhigh—frequencyalternatingmagneticfieldexcitationsourcecausingthedynamicchara

4、cteristicsofthemagneticsensorcalibrationproblemcannotbequicklyandaccurately，thispaperpresentsamagneticsensorbasedonthemagneticfieldaroundastraightwireelectrifiedstaticanddynamiccharacteristicsofrapidfieldcalibrationmethod．Thearticlefirstproposedandconstr

5、uctedastandardsbasedwidebandchargedstraightwiremagneticfieldgenerator，usingtheBlot—Savartlawanalysisofthedistributionofthemagneticfieldaroundachargedstraightwire；followedbyloadingthetypicalalternatingexcitationcurrentinlongstraightwire，typicalalternating

6、magneticfieldwasproduced．Thedynamiccharacteristicsofthemagneticsensorwascalibratedbyusingsystemidentificationmethods；Finally，avectormagneticsensormeasurementsystemintimedomain，frequencydomaindynamicmodelcalibration．Experimentalresultsshowthattheproposedd

7、ynamicmodelofthemagneticsensorcalibrationmethodissimple，rapid，eficientandaccurateadvantagesofvarioustypesofindustrialsitetofacilitatestaticanddynamiccharacteristicsofthemagneticsensorcalibration．Keywords：magneticsensor；highfrequencystandardmagneticfields

8、ource；dynamiccharacteristic；calibrationmethodEEACC：5150doi：10．3969／j．issn．1004—1699．2014．10．008基于带电直导线周围磁场的磁传感器动静态特性标定方法赖正喜，张晓明，杨国欢，赵代弟(1．中北大学仪器与电子学院，太原030051；2．中北大学电子测试技术重点实验室，太原030051)摘要：目前磁传感器多用于对静态或准静态磁场环境的测试，当被测磁场矢量快速