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时间:2020-03-25
《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》由会员上传分享,免费在线阅读,更多相关内容在行业资料-天天文库。
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
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