DSHD-0702A Marshall Electric Compaction Tester
BriefIntroduction1.Nuclearmagneticresonance(NMR)isanewgeophysicalmethodtofindwaterdirectly.
2.DSHS-3NMRwaterdetectorbriefintroductionappliesNUMIsystemtoexploreoccurrenceofaquifersfromshallowtodeepbychangingamplitudeanddurationofIPcurrencypulsefromsmalltobig.Comparingtotraditionalgeophysicalmethod,itdoesnotneedtodrill,whichisamonitoringwithoutdamage.
3.ThesystemmanufacturedbyFrenchIRISwastheonlycommercializedsellingNMRwaterdetectorintheworld.DSHR-3isournewproductwithhightechnology,whichfillstheblankofhomeandtheintegrativefunctionsreachinternationaladvancedlevel.
Applications1.Seekundergroundwaterabout0~150mdirectly:theNMRabnormalityreflectstheexistofundergroundwater,thestrengthandrangereflectswateroutflowandarea.2.MRSmethodtodistinguishwhetherthereisfreewaterinwater-bearingstructure.3.Locatethewellcombiningwithρsabnormityfeatureinthewaterrange.4.Distinguishwaterquality:determinesaltwaterorfreshwaterbyresistivityvalue.5.DecidethepollutionrangeandextentofhydrocarbonpollutionwaterbycombiningIPabnormalityfeature.6.Evaluatedykeandundergroundwatermovingconditioningeologicalengineering,coastmonitor,archaeologyetc.,detectoldmineralandgoaf.7.Undergroundwaterestimation,seawaterbackflowingandundergroundwaterdynamicmonitoring
ThetechnicalparameterofDSHS-3NMRwaterdetectorhasreachedorexceedsthatofNUMISNMRwaterdetector,whichismadeinFrance.
ComparationOfTechnicalSpecifications
|
Model |
DSHS-3 |
NUMISPLUS |
|
lOutputresonancevoltage(V) |
l4000 |
3000 |
|
450 |
300 |
|
|
Transmittingfrequency(KHz) |
1-3 |
|
|
Impulsematrix(A*ms) |
100-20000 |
100-9000 |
|
Powercapacitance（µF） |
||
|
Filterbandwidth(Hz) |
10-122programmable |
100 |
|
Amplifiergain |
103-107 |
104-106 |
|
Backgroundnoise(nV/√Hz) |
<1 |
<10 |
|
Samplingrate |
4-20timesLamorfrequency |
10KHz |
|
150 |
150 |
|
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