APPLICATI***Shallowreflectedorshallowrefractedw***esurveying,transientRayleighw***esurveying,w***espeedtesting,groundpulsationtesting,***allstrainfoundationintegritytesting,elasticw***eCT(computedtomography),sei***icImaging,foundationdynamicparametertesting.Widelyusedinareasengineeringgeologicalsurveying,dikesurveying,andgroundinvestigati***andsoon...FEATURES:1.Built-inlithiumionbatterywith8hourbatterylife2.Lightandportable(centralunitweighs4.5kg),istheworld's***allestengineeringsei***icsurveyingequipmentatpresent.3.Built-inscrollingswitchforeaseofcoveringmultiplereflectedw***esurveys4.Containsallshallowsei***icsurveyingfunctionality5.Windows2000operatingsystem6.Chineseuserinterface7.Water-tightkeyboardandmousebutt***8.TwoUSBports9.Signaledgetrigger,TTLtriggersynchronizationMAINSPECIFICATI***:ChannelNo:24SamplingInterval:25us-10ms(selectable)Bandwidth:0.1Hz-5000HzProgrammableAnalogFilterLowcutfilter:10-200HzprogrammableHighcutfilter:500-2000HzprogrammableBandcutfilter:50/60HzA/D(IFP's)precision:ΔΣ24bitComputationalprecision:32bitEquivalentnoise:1μV,RFI(at2.0mssamplingrate)Cross-channelinterference:>80dBHarmonicdistortion:-114dB(at2.0mssamplingrate)DataDisplayandRecording:Mainprocessor:IntelPentium500MHzprocessorMemory:118MBInternalharddrive:10GBMonitor:1024X5128"SVGADatatransfer:USBDatastorage:SEG2,SEGY,andGeopendataformatSystemself-testcriteriaStaticvoicesound,cross-channelc***istency,cross-channelisolationMainunitsizeandweightSize:330X180X100mm,weight:4.5kgEnvironmentaltolerances:Operatingtemperature:-20to50degCStoragetemperature:-40to70degCOperatinghumidity:0-95%)