Dictionary
Correction
…The uncertainty of the correction itself must enter the budget. VIM (JCGM 200:2012) 2.53 General
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105 results for “Correction”
Standard Operating Procedure from the NIST OWM series — Applying Air Buoyancy Corrections. Public domain; the full text is readable in the Atlas document library…
Length change from the 20 °C reference temperature for common materials — ΔL from coefficient of thermal expansion per ISO 1.
Dictionary
Air buoyancy correction
The correction applied in precise mass comparisons for the differing volumes of the standards and the object weighed, proportional to air density and volume…
…CorrectiontablesareupdatedbyapplyingareferencesignalfromtheMCScalibrator andtheninitiatingaGPIB"correction"commandthatchangestheappropriatecorrectionvalueuntil theDMMdisplaysthepropervaluetowithinaselectabletolerance.BoththeMCSsoftwareandthe Wavetek4950softwarehavethiscapability.RepeattestsareperformedtoverifythattheDMM correctiontablehasbeenaccuratelymodified.Thisservicerepresentsachangeinthelong-standing NISTpolicyofnotadjustinginstrumentssubmittedfortest.However,insteadofmakingananalog adjustmentwhichcannotgenerallybeundone,inthiscasetheadjustment isdigital.Theinitial correctionsarestoredintheinstrumentandtheresidualcorrectionsaregiveninthetestreport.The uncertaintiesoftheresidualcorrectionsarebasedonthestandarduncertaintyofthecalibratorandthe standarddeviationoftherepeattests. 4.2CalibrationofCalibratorsusingtheMCSDMM…
A - 33 Standard Correction Given the NIST standard and frequency for a measurement, this subVI uses a LabVIEW table to look up and return…
Ifthecomputedcorrection ispositive, itisaddedtothethermometer correction. Ifthecomputedcorrection isnegative, itissubtractedfrom thethermometer correction. Theresultingcorrection isapplicablewhen thisthermometer isusedatanimmersionof25mm. Ifthiscorrection istobemadeonthermometerscalibratedinthetinbath (300to538°C),theformulatobeusedis: Too-deepimmersioncorrection={D-[D/(l+k…
…Correctionmustbemadeforattenuation, k^,ofthex-raysintheairpathbetweenthediaphram andthepositionofmeasurement.Thedistanceforairattenuationmeasurements istakentobe thedistancebetweenthedefiningplaneofthediaphragmandthecenterofthecollector.This correctionisenergydependentandatlowenergiesatmospherictemperatureandpressureeffects becomesignificant.Thephotonscattercorrection,k^,mustbemadefortheionizationthat resultsfi-omphotonsscatteredoutofthediaphragm-definedbeam.Thiscorrectionisgeometry dependentandneedstobeevaluatedforeachdefiningaperture.Someenergeticelectronsleave thecollectionvolumebeforeexpendingalltheirenergyintheformofionization.Electronloss corrections, k…
…Head correction is the unglamorous term for accounting for it. The physics is one line: Δp = ρ·g·h, the density of the pressurizing…
…Nomenclature C hydrometer correction, γs cc+= RC hydrometer correction for a reference liquid R LC hydrometer correction for a particular liquid under test L…