Dab tsi yog qhov cuam tshuam rau kev ntsuas ntsuas ntawm digital refractometer?
Refractive index yog ib txoj hauv kev yooj yim thiab raug los txheeb xyuas qhov purity ntawm cov organic tebchaw. Rau ntau lub tshuab binary, qhov refractive index muaj ib qho kev sib raug zoo nrog cov muaj pes tsawg leeg, yog li nws yog feem ntau siv los ua ib qho kev ntsuas los ntsuas qhov muaj pes tsawg leeg. Refractive index yog ib qho tseem ceeb ntawm cov khoom siv kho qhov muag ntawm cov ntaub ntawv pob tshab. Thaum qhov ntsuas qhov ntsuas ntawm cov khoom yuav tsum tau kuaj yog 1.3000-1.7000, qhov ntsuas los ntawm tag nrho cov kev xav tau muaj qhov zoo ntawm kev ua haujlwm yooj yim thiab nrawm, tsis tshua muaj kev xav tau rau ib puag ncig, thiab tsis tas yuav tsum muaj lub teeb ci monochromatic. Lub refractometer yog ib qho cuab yeej ua los ntawm tag nrho cov kev xav ntawm kev xav thiab siv tshwj xeeb los ntsuas qhov ntsuas qhov cuam tshuam ntawm cov kua dej pob tshab lossis cov kua dej ntshiab. Siv lub Abbe refractometer los ntsuas qhov ntsuas qhov ntsuas ntawm cov kua los txiav txim siab nws cov muaj pes tsawg leeg yog ib qho ntawm cov kev siv tshuaj ntsuam xyuas thiab kev kuaj pom hauv kev tsim khoom thiab kev tshawb fawb txog kev lag luam petrochemical, lub teeb kev lag luam thiab zaub mov.
Yam cuam tshuam thiab tswj
kub
Ntawm qhov sib txawv ntawm qhov kub thiab txias, qhov ntsuas qhov ntsuas ntawm tib qhov nruab nrab yog qhov sib txawv, yog li qhov ntsuas qhov ntsuas ntawm qhov sib txawv ntawm cov xov xwm sib txawv yuav tsum muab piv rau tib qhov ntsuas kub. Lub refractive index ntawm cov ntaub ntawv pob tshab yog ze ze rau nws qhov kub thiab muaj pes tsawg leeg. Lub refractive index ntawm cov kuab tshuaj feem ntau yog txiav txim siab ntawm qhov kub thiab txias ntawm (5-30) degree . Lub refractometer yuav tsum tau muab tso rau ntawm qhov sib thooj rau ob teev ua ntej nws tuaj yeem siv rau kev ntsuas.
Teeb meem lub teeb wavelength
Qhov cuam tshuam ntawm qhov nruab nrab ntawm qhov kev nthuav tawm ceev ntawm qhov sib txawv wavelengths ntawm lub teeb sib txawv, yog li qhov ntsuas qhov nruab nrab ntawm tib qhov nruab nrab ntsuas los ntawm qhov teeb meem ntawm qhov sib txawv wavelengths txawv. Lub refractometer xaiv D kab 589.3 hli ntawm sodium daj lub teeb raws li qhov teeb meem teeb pom kev los ntawm Amish dispersion prism
Yuav tsum tau ntsuas qhov ntsuas qhov ntsuas ntawm cov khoom
Qhov ntau ntawm refractive index ntawm cov khoom uas ntsuas tau los ntawm ib tug refractometer yog 1.30 ~ 1.70iii.
txheeb ze humidity
Kev xav tau rau cov txheeb ze humidity:<85% 3 The standard working curve of the refractometer Firstly, at normal pressure and temperature of 30°C, use a refractometer to measure the refractive index of binary mixed solutions with different proportion concentrations, and determine the relationship between the molar composition of the solution and the refractive index , to obtain the standard curve of solution molar composition and refractive index at this temperature.
