SE3NTisthemostadvanced4Dmicrofracturessei***icsurveyingsystemintheworld.withGPSpositioningandtimingfunction,cable-freenodesystemandwirelessgeophonenetwork.Application:Surveyingforshaleoilandgas,coalminegoaf,hydraulicfracturing,geothermalresources,CO2sequestration,groundwaterresourcesetc.Monitoringforcityroadground,Buildingmicrotremor,highway,landslide,mud-rockflow,rockburst,Urbanblastmonitoring,suchenvironmentaldisasterandgeologicalnaturaldisasteretc.Function:Microtremorcouldbedividedintotwotypes:Naturalsourcesandman-madesources.Naturalsourcesofmicrotremorsariseprimarilyfromwind,oceanw***es,volcanicactivity,tectonicactivity,surfacerockmigration.Man-madesourcesofmicrotremorsprimarilyarisefrommeansoftransportation,machinery,production,andartificialfracturingandblastmining.SE3NTMicrotremorMonitoringSystemisspecificallydevelopedforthemonitoringandtestingofvariousMicrotremors,widelyusedinenvironmentaldisastermonitoring,microtremorexplorationetc.TheSE3NTiscomposedofthewirelessacquisitionunit(RSU),on-sitesubstation(CSU),andremotecontrolhostcomputer(KCU).Application:Buildingandstructuresei***icevaluationanddesign,foundationclassification,andfoundationimprovement,landslidemonitoring,geothermalsurveying,illegalminingsurveillance,goafinvestigation,hydraulicfracturing,carbondioxidesequestrationmonitoring,orebodywatermigrationetc.Specificati***:1.ChannelNO:32.FrequencyRange:0-500Hz3.DynamicRange:126dB4.A/Dconverter:ΔΣ24bit5.SamplingInterval:10,20,50,100,500,1000Hz6.RecordLength:>=1GB/CH7.MaxInputVoltage:10V(G=1)8.Pre-amplifierGain:G=1,2,4,8,16,32,649.Noise:0.6UV10.InputImpedance:30kOhm11.Built-inCoreProcessor:ARM-912.Built-inGPS:Timingerror30ns,positionalaccuracy2.5m,sensitivity-162dBm(operableindenselywoodedareas)13.Built-inWirelessCommunication:2.4GHz,lineofsightrange3.2km,actualrangeinmountainousterrain300m(canselectGPRSremotecommunication).14.Memory:4-16GBSDcard15.Trigger:Event-based,timing-based,orplanned(ifevent-based,canpre-collect256-1024samplepoints)16.***eragePowerC***umption:140mAoperating,30mAstandby17.Battery:7.2V/8.8Ah,50hoursoperatingtimeor300hoursstandby18.Size:180X180X80mm19.Weight:750g20.OperatingConditi***:-20to85degreesCelsius,rainproof)