HL-2A托卡馬克裝置上微波反射儀的研制.pdf

1、華中科技大學(xué)碩士學(xué)位論文HL2A托卡馬克裝置上微波反射儀的研制姓名：楊州軍申請學(xué)位級別：碩士專業(yè)：電工理論與新技術(shù)指導(dǎo)教師：潘垣胡希偉20060430華中科技大學(xué)碩士學(xué)位論文IIAbstractMicrowavereflectometryisnowwidelyusedtomeasureelectrondensityprofilesfexperimentsontokamaksothertoidalmagicallyconfinedplas

2、mas.AnOmodemicrowavereflectometersystemhasbeendevelopedfdensityprofilemeasurementsontheHL2Atokamak.Wehavestudiedaboutthedevelopmentapplicationofthemicrowavereflectometryonmagicconfinedfusiondevicesintroducedthebasicprinc

3、ipleofmicrowavereflectometryacteristicsofdifferentkindsofmicrowavereflectometry.WehavedesignedanamplitudemodulationreflectometrysystemwithfastscanningmicrowavesourcefdensityprofilemeasurementontheHL2Atokamak(R=1.64ma=0.4

4、m，Bt=2.5TNe=0.8～410l9m3).Thereflectometerlaunchesmicrowavepowerfromaveryfastscanningbackwardwaveoscillatin4660GHztoprobetheplasmareceivethereflectionbythedensitycutofflayer.Thescanningtimeoverthefullbof26.540GHzisabout1m

5、s.Itisandinarymodereflectometer.Thereferencesignaltheprobingsignalareobtainedbymixingalocaloscillatpowerwiththedemodulatedmicrowavesignals.ComparisonisthenaccomplishedbyIQphasedetect.Themicrowavereflectometrysystemhasbee