Inthispaper,atwo-dimensional(2-D)Lagrangiantechniqueforflowfieldmeasurementunderhighdynamicpressureispresented,whichincludesasetofexperimentaldeviceand2-DLagrangecompositemanganin-constantanringgages.Withthiskindofgage,thehistoriesofpressureandradialdisplacementcanbemeasuredsimultaneouslyatdifferentLagrangepositionsinanaxisymmetricshockloadingflowfield.Thetechniquehassomeadvantagesoverthe1-Done,suchas,simplifiedloadingdevice,continuouslyadjust-ableoutputpressure,norestrictiononsamplelengthandtheavailabilityforthestudyoflateralrarefactioninshockpropogation.Asapreliminaryapplication,theprocessesof2-DshockinitiationandattenuationincompactedTNTaremeasured.
