1、SummarySBDY-1whitenessmeteriscomponentsoflightsource,opticalsystems,detectionsystems,dataprocessinganddisplaysystem,thetotalwhitenessvalueisbluelightwhitenessR457.Itcanbeusedtomeasurethevalueofwhitenessmaterialsandclosewhitenessmaterialssurface. Definitionentirelydiffusereflectance,whichisdiffusereflectancewithininvisiblespectrumscopeare1andideasurfacewhitenessis100,thespectralreflectancefactoris0andblacksurfacewhitenessis0 Lightingandobsevationconditionsadopt45/0.TheinstrumentpassedbyrigoroustestinganddebugginginaccordancewithNationalMeasureRegulationsJJG512-2002andimplementationofNationalStandardsGB/T5950,GB/T3977,GB/T3978,GB/T3979,JB/T9327,ect.2、WorkingPrincipleItisconformstothelightsourcerequirementofInternationalIlluminationCommission(CIE)D65,betweenthelightsourceandsamplehaveafilter,whichissummationoftheblue,violetandultravioletlightfromasamplereflexbeams,itabsorptionofmorethan500bicronvisiblelightandsegmentbluelight,forthefluorescenceexcitationwavelengthithavehighrelativelytransmittance. Betweenphotocellandsampleinstallotherfiltersothatreceivingthelightofdiffusereflectancesurfaceisonlyincludebluelight,allowingaccesstheexcitationedfluorescencebyphotocell,eliminatingreflexultravioletlightandnearultravioletlightinsamplesurface,asaresultofarrangementthesetwofilterslikethis,theinstrumentisnotonlyabletocorrectlyeducethewhitenessvalueofordinaryproducts,butalsotoeffectivelyreflectthewhiteningeffectoffluorescentwhitening. Themeasurementreceiveradoptthephotoelectriceffectprinciple,whichisreceiveddiffusereflectanceradianceenergyvaluesbyphotocellthroughtheautomaticstabilizationzerooperationalamplifierzoomitin,inputcalibrationcircuittoprosecutionenergyvalue,thendirectlydigitaldisplaysampleswhiteness.3、AttentionsThisinstrumentbelongstomeasureequipment,strictlyprohibitingarbitrarydemolitionandreadingtheinstructionsbeforeuse. 1.Donotexistcorrosivegasesandvibrationsourcearoundworkingenvironment. 2.Withoutaroundstronglightandstrongmagneticfieldinterference.3.Keepambientairdrynessanddonothavefloatingdust.4.Leaveenoughspacetodissipationheataroundtheinstrument.5.Itshouldextendpreheatingtimetoenhancestabilityaftertheinstrumentsuspendedforalongtime. 6.Supplyvoltagemustbeaccordwithworkingcondition.7.Powersocketmustbeconnectedtothegroundingeffectivelyandpreventoutsideinterference.8.Donotfallthesampleintomeasuringbarreltopreventnottransferredzero.9.Toavoidaffectthespectralcharacteristics,donotdirectlytouchtheopticalcomponents. 10.Toavoidaffectthemeasureaccuracy,donotpollutionblackbarrelandwhiteboard.4、Characteristics*AdoptCADcomputeraideddesigntomaketheinstrumentshapemorereasonableandmoreperfect.*Highefficiency,lowlossswitchingpowersupply,makesithigherreliability.*Highqualityimportedcomponents,makesitmorestableworkandlongerservicelife.*Asimplelightpathdesign,makesiteasyoperation maintenance.*Modifiedfiltersystemcanbequantitativereflectedthefluorescentwhiteningvalue.*Reasonablesamplesocketandplatformdesigneffectivelyavoidthemeasuringorificeleakinglight *Easyoperationcanbeaccuratemeasuredtheopacityofpaper.*Nationalcalibrationwhiteboardtotransfercalibrationvalue,makesthemeasurevaluemoreaccurately. 5、ApplicationsSBDY-1Pwhitenessmetercanbeusedtomeasurewhitenessofnon-colorsmoothsurfaceobjectsandpowder,itcangetexactvalueinaccordancewithvisualacuity,forthelightofobjectdisposedbyfluorescenceitcanmensurabllyreflectthedataafterfluorescencewaswhitened. SBDY-1Pcanbewidelyappliedintextureprintinganddyeing,paintcoating,chemicalconstructionmaterials,plasticproducts,whitecement,chinaware,enamel,papermould, French chalk,flour,salt,scour,cosmeticsandsoon. 6、BasicSpecificationsMeasurementRange0～100.0 DigitalDisplayTypeResolution0.1IlluminationCondition45/0LightSource12V/35VA HalogenTungstenLampWhitenessFormulaBlueLightWhiteness WB＝R457MeasurementAperture 30mmZeroDraft 0.1/10minIndicationstability 0.2/10minMeasurementRepeatability 0.2EnvironmentTemperature＋5℃～＋35℃RelativeHumidity＜85％RHPower220V 10％ 50Hz 1HzVoltage＜35VAWeight7kgVolume340 270 280(mm)