24510.光泵磁力儀識別鐵磁目標(biāo)的實驗研究

1、哈爾濱工程大學(xué)碩士學(xué)位論文光泵磁力儀識別磁目標(biāo)的實驗研究姓名：李慧申請學(xué)位級別：碩士專業(yè)：光學(xué)指導(dǎo)教師：康崇201203光泵磁力儀識別鐵磁目標(biāo)的實驗研究Abs仃actGeomagneticfieldofeverylocationontheearthhascertainintensitydirectionanddistributionNotonlythecarrierwillaffectthegeomagneticfieldintheme

2、asurementarea；buttheinducedmagneticfieldmagnetizedbygeomagneticfieldofferromagneticobjectswillalsogeneratechangesofspatialdistributionsofitselfinthemeasurementareaThestudyofthispaperwasspreadaroundtheinfluenceofferromagn

3、eticobjects；themagneticdipolemagneticfielddistributingtheorywasappliedtoguidetheeliminationofmagneticfieldinterferenceForhi【Shprecisionmeasurementofgeomagneticfield，theinducedmagneticfieldcalculationsforferromagneticobje

4、ctshaveimportantacademicandpracticalsignificancewhendegaussingThispaperintroducedthebasicconceptionsofgeomagneticmeasurementsandgeomagneticmapfirstly；givethebriefanalysisofgeomagneticfieldconstitution；thenintroducedthecl

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6、workingprincipleforopticallypumpedcesiummagnetometerfromthetheoriesofthecesiumatomicbasicnatureandcesiumatomicenergylevelstructureThenwemeasuredregionalgeomagneticfieldbyopticalpumpingcesiummagnetometerconsideringthedisc

7、retedataofgeomagneticfield，thispaperplottedsuccessiveisolinemapoflocalmagneticfieldbyusingKrigingontheplatformofsurferthemagneticabnormalpointsWasfoundcausedbytheferromagneticmaterialTheinducedmagneticfieldsofferromagnet

8、icobjectsunderaweakmagneticfieldWascalculatedinthispapertheformulaofmagneticinductioninspaceanypointWasobtainedbasedonfarmagneticfieldtheoryofmagneticdipolesandthetheorythatferromagneticobjectscarlberegardedasacombinatio

9、nofcertainmagneticdipolesTheleastsquareisappliedtocalculatethemagneticmomentsofnailaccordingtotheexperimentdataofinducedmagneticfield，andthencalculatetheinducedmagneticfieldstrengthoftheestablishedmodelInthispapertheinfl

10、uenceofferromagneticobjectsongeomagneticfieldWasstudiedformbothmodelinganalysisandexperimentalmeasurement，theestablishedmagneticdipolemodelswerewellverifiedthroughmeasuringthespacemagneticfieldsurroundingburiednails，whic