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作者: Deruite Industry 发布时间: 2019-09-11 10:41:26

GIS DataClick to see moreDeterminationofgroundpointelevation,iscalledtheelevationmeasurement.Heightmeasurementisoneofthebasicworkofmeasurement.Heightmeasurementbytheuseofinstrumentsandmeasuringmethodofdifferent, canbedividedintolevelmeasurement,andtriangulatedheightsurveying,GPSheightmeasurementandpressureheightmeasurement.Levelingiscurrentlythehighestprecisionlevelingmethod,

Heightmeasurementfunctionofusingtotalstaonealizemeasurementofmetalcansofgradient,andtheJJG168-2005verticalsteeltankcapacityverificationregulations"7.3.6describedinthesamelevelmeasuringinclinationprinciple,method,approximate,alsocanbedividedintothetankandtankmeasurementtwoways. (1)totalstationtankmeasuringinclination.Selectedadirection,measureandrecordthefirstlapplateatthebottomofthecorrespondingpointsoftheelevationanddirectioninturnrotated45°,respectively,

measureandrecordthefirstlapplateatthebottomofthecorrespondingpointsofelevation,maximumdifferenceinthetwosymmetricpointelevationcalculation. (2)totalstationtankmeasuringinclination.Outsidethetankwallatthebottomofthefirstlapplatecolorpenclearlyindicatethedirectionoftheeightsymmetrypoints,selectionofappropriatelocationfixedleveling,totalstation,asshowninfigure1,withthelaserspotonthebottomedgecolorpenmark,readthispointelevation.

Withtotalstationindifferentdirectionofthetank,inturn,eachpointelevationmeasurement.Repeatedmeasurementaftereachmovelevelonastationofthelastmeasurementpointelevation, canmakethecorrectiontothesamelevel.Tocalculatethemaximumdifferenceinthetwosymmetricpointelevation.

thenwaitfordryaftercollection,thecleannessofelectrodeisalsoimportantforimagemeasuringinstrument,alsohasagreatinfluencetoaccuracy.

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