24510.光泵磁力儀識(shí)別鐵磁目標(biāo)的實(shí)驗(yàn)研究

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

2、asurementarea；buttheinducedmagneticfieldmagnetizedbygeomagneticfieldofferromagneticobjectswillalsogeneratechangesofspatialdistributionsofitselfinthemeasurementareaThestudyofthispaperwasspreadaroundtheinfluenceofferromagn

3、eticobjects；themagneticdipolemagneticfielddistributingtheorywasappliedtoguidetheeliminationofmagneticfieldinterferenceForhi【Shprecisionmeasurementofgeomagneticfield，theinducedmagneticfieldcalculationsforferromagneticobje

4、ctshaveimportantacademicandpracticalsignificancewhendegaussingThispaperintroducedthebasicconceptionsofgeomagneticmeasurementsandgeomagneticmapfirstly；givethebriefanalysisofgeomagneticfieldconstitution；thenintroducedthecl

5、assificationandsomemaintechnicalindexesofmagnetometerparticularl5sincetheinstrumentforgeomagneticfieldmeasurementexperimentscouldbedecidedThispaperintroducedworkingprincipleandprocessesofprotonmagnetometerthenanalyzedthe

6、workingprincipleforopticallypumpedcesiummagnetometerfromthetheoriesofthecesiumatomicbasicnatureandcesiumatomicenergylevelstructureThenwemeasuredregionalgeomagneticfieldbyopticalpumpingcesiummagnetometerconsideringthedisc

7、retedataofgeomagneticfield，thispaperplottedsuccessiveisolinemapoflocalmagneticfieldbyusingKrigingontheplatformofsurferthemagneticabnormalpointsWasfoundcausedbytheferromagneticmaterialTheinducedmagneticfieldsofferromagnet

8、icobjectsunderaweakmagneticfieldWascalculatedinthispapertheformulaofmagneticinductioninspaceanypointWasobtainedbasedonfarmagneticfieldtheoryofmagneticdipolesandthetheorythatferromagneticobjectscarlberegardedasacombinatio

9、nofcertainmagneticdipolesTheleastsquareisappliedtocalculatethemagneticmomentsofnailaccordingtotheexperimentdataofinducedmagneticfield，andthencalculatetheinducedmagneticfieldstrengthoftheestablishedmodelInthispapertheinfl

10、uenceofferromagneticobjectsongeomagneticfieldWasstudiedformbothmodelinganalysisandexperimentalmeasurement，theestablishedmagneticdipolemodelswerewellverifiedthroughmeasuringthespacemagneticfieldsurroundingburiednails，whic