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1、色差仪分析原理Alsosampleandrefereneewhite・Thisovercomestheerrorofthesystemchangesandtheaccuracyofthemeasurementisveryhigh.It'sjustthecostoftheinstrument・Asinglebeaminstrumenthasonlyonegratingandonedetector・Sothelightsourceflashestwice,andthesamplesandtheginsengwhitearemeasuredseparately.And
2、twosystemerrorofthemeasurement(lightintensitydistributiondifference,theopticalpathchange,temperaturechange,circuitdrift,etc・)aretreatedasthedifferencesbetweensampleandreferencewhite,sotheerrorisbigger・3.2thelightsource:themajorityofmanufacturerstochoose"high-energypulseXenonlamp(Puls
3、edXenon)",hasalongservicelife,highlightintensity,thesignal—to-noiseratioofthemeasurement(highsignal/noise)measurement,highmeasuringprecision,etc・Individualmanufacturerofinstrumentngsten(tungstenlight)haslowlightintensity,feverforalongtime,lifeisshort,inthebluesectionofthemeasurementi
4、snotaccurate,andothershortcomings・Integralball:thequalityisgood5,6yearswillnotturnyellow,thedifferenee2,3yearschangeyellowtowanttochange.InJapan,MINOLTA(MINOLTA)co.,LTD.Producesameasuringinstrumentwhichismainlydividedintotwoseries:theCRseries(cr-10,CR-300,CR-400,CR-410,CR331,CR321etc
5、).ThesecondistheCMseries(CM-2600d,cm-2500d,cm-3600d,cm-508d,cm-503c)・TheCRseriesc^nonlybemeasuredincolorandnotincolor,whiletheCMseriescanbemeasuredorconnectedtothecolorscheme・Tosetupthecolorscheme,wemusthavethefollowinginstruments:1)CMseriesspectrocolorimeter,2)matchcolorseriessoftwa
6、re,3)owncomputer・Thesamecolormeter,buttheCMseriesismoreaccuratethantheCRseries,andthepriceishigh・CRseriesportableCR-thedifferencebetween10anddesktopCR-3xx:CR一10cannotmeasuretheabsolutevalueofacolorofcolorspaceandcolordifferencebetweenthetwocolorscanonlybemeasuredvalues(deltaE);Thecr-
7、3xxdesktopcolordifferenceinstrumentcanmeasuretheabsolutevalueofacertaincolor・InCRseries,fordifferentindustries,differentmodels(mainlyasthedifferencemeasuringdiameter),theusermustbeundertheguidanceofoursalesengineerstochoosetheappropriatemodels・Whatisthecolordifferenceinstrument?Whati
8、sthecolorsch
