Magneticinspectionoftencallsfortheuseofaspecifiedlevelofmagneticfluxwithinsteelcomponents.Ifthemagneticfluxlevelistoolow,thendefectsmaybeoverlooked:iftoohighthenspuriousindicationsmayoccur.TheMF300Bhasbeenproducedtomeasurethemagneticfluxdensityjustbelowthesurface.Themagneticfluxismeasuredsimplybyplacingtheprobeonthesurfaceofinterest.Themonitorwillmeasureconstantoralternatingmagneticfluxwhichcanbeproducedbypermanentmagnets,electromagnetsorelectriccurrents.ThemeasuredvalueisdisplayedinunitsofTesla.MeasurementsofmagneticfluxaredisplayedontheunitandcanalsobesentviaanRS232linktoaP.C.Softwareforusewiththemeterisprovidedwhichenablesdatatobesavedandenteredinspreadsheets. *磁通流量（密度）计的工作原理图：探头放在被检物体上放即可。