SQ-1dual-channellaserlightcasesofdigitalelectricmeter
J(DepartmentofGeology,gucciborse,CentralSouthUniversity,IIndustry,Changsha,410083)f1AbstractInthispaper7SQdual-channelportabledigitalIPinstrumentspecial..Andkeyindicators.ItretainsthejS-2alltheadvantagesofdual-frequencyinstrument,butalsointhetechnicalperformanceandtheoverallstructureforjgreaterimprovements.Keywordsdual-frequencyIPinstrument;light;overviewofanti-couplingadual-channeldigitalIPinstrumentwasdevelopedbytheCentralSouthUniversity,China\'sfirstnewfrequencydomainmethodtostimulateenoughsurveyinstrument.Theinstrumentwassuccessfullydevelopedsince1980intothefieldofproduction,inthesearchfornon-ferrousmetals,preciousmetalsandothermineralresources,monclerJackets,inthecitygeophysical,engineering,exploration,thesearchforgroundwaterresourcesplayanimportantrole.Inthelong-termuse,themajorityofusersofthefactoryproductionofS-2,S-3mademanyvaluablecommentsandsuggestions,wanttobeimprovedwiththeelectroniccomponentsofthefurtherdevelopmentandimprovement.Makesomeimprovementsontheinstrumenttomeettheneedsofusersisentirelyfeasibleandnecessary.Inthiscase,CentralSouthUniversity,InstituteofGeophysicsdevelopedSQ?1dual-channelportabledigitalIPinstrument.ItretainstheS-2instrumentalltheadvantages,characteristics,andinthetechnicalperformanceandmadeabigimprovementontheoverallstructure,sothatsmall,lightweight,easyoperation,easymaintenance.2instrumenttransmitterfeatures2.1(a)transmitterpoweroutputusingthemainloopVMOSpowerdevices,thussimplifyingthedrivecircuit,ferragamooutlet,thetransmitter\'sweight,sizeupstingapparatusthantheS-2greatlyreducedandequipmentwaitafewmoresetsofreasonableshape,suitableforportablefieldunitstoachieveacompactlightweighttechnology.(B)outputpoweroftheinstrumentfromtheoriginal4(10Wto800W,theoutputcurrentrangefrom20mA~1Aexpandedto0.01mA~1.999Asothattheinstrumentcanbedirectlyusedfordeterminationofspecimens,nolongerneedanexternalshunt.(c)theinstrumenthasimprovedover-currentalarmdevice,notvisiblefromthemeterindicationtosoundalarm2.2receiver(a)Theequipmentusedinallcommercialimportsoflow-powerprecision,highinputimpedanceopamplifier,andthebootstrapwiththeReceivedDate1994-06-OBfirstphaselag2jSupplsuchwisdomas:SQa]two-channelportabledigitaldevicesandlaserpowerwithhisanti-50Hzfrequencyinterferencetrapcrossingdeviceapplications,theinstrumentinputimpedanceandimprovethestabilityofSui,enhancedanti-jammingcapability.1(b)onthepartofthelineisoptimizedandimproved,sothatpotentialdifferenceandincreasethefrequencywithtwo3twoparameters{LCDdisplaysimultaneouslytofacilitatethereadingfield.(c)anincreaseofanti-decouplingfunctioninareaswithlowsurfaceresistivitywork,canautomaticallycorrecttheeffectsofelectromagneticcoupling,enhancetheinstrument\'sabilitytoadapt,expandthescopeofapplication.2.3sendothermachine,double-linereceiversareusedimportsofintegratedcircuits,andwithajackforinstrumentmaintenance.transmitterandreceiverareusingfournickel-cadmiumbatteriesbytheDC-Dcconversiontomachinepower,andwithasteadyflowofdual-channelautomaticcharger,convenientandpractical.3Themaintechnicalperformanceandindicators(1)SQ-1dual-banddevicetransmitteranddual-banddevicetransmitterSanmingFactoryMaintechnicalperformancecomparisontable(Table1)Table1(2)SQ-1dual-frequencyreceiverandSanminginstrumentfactoryS-2,ralphlaurenonlineshop,S-3receivermaintechnicalperformancecomparisontable(Table2)(3)reflectstheunusualabilitytoreflecttheunusualabilitytochecktheinstruments,monclerpascher,weuseR-cnetworkofthesimulator,dependingontheR-cvalueofdifferentpiecesoffrequency(F.)andtheinstrumentinnotcouplinganddecouplingthetwostatestobetested.reflectstheunusualabilityofseveraldual-banddevicecomparisontable(Table3)(4)indoorsensorcoupledwithautomaticcorrectioncapabilityR-ctestnetworkofsimulatorscalculateallthedifferentnegative()values,andplacestheinstrumentincorrectstateautomaticallycouplingthetestresultsinTable4CentralSouthInstituteofMiningandMetallurgyinTable3wheretheschoolreport2\')S-sterileplant2$-Wan3sQa1Sq.]S!o.991.21.21.2o.4o.1.461.91.71.7o.91.2.092.52.42.31.61.2.573.13.o2.92.22.3-073.53.53.42.82.3-504.o3.93.93.43.5.135.75.75.65.65.5.366.o6.05.95.95.8.899.89.99.7]1.79.Table4cross-coupledsenseIJuesoundEs()couplingsoundautomaticallycorrected()factoryS-3sQ1reference(omitted)
|
