Taw qhia rau kev nthuav dav ntawm kev txuas ntxiv zoom stereomicroscope
1, Txheej txheem cej luam
Nruam zoom stereoscopic microscope yog Khan lub ntsuas ntsuas ntsuas stereoscopic microscope nrog kev ua haujlwm zoom nyob rau hauv qhov kho qhov muag, thiab nws qhov kev nthuav dav tuaj yeem hloov pauv tsis tu ncua nyob rau hauv qhov ntsuas ntau yam. Vim yog qhov chaw ruaj khov ntawm kev pom txoj kab uas hla ntawm lub qhov muag ntawm Mac Audi lub tso suab microscope (xws li 10X eyepiece nrog ib thaj tsam ntawm txoj kab uas hla ntawm 22mm), lub teb ntawm txoj kab uas hla ntawm cov khoom sab (saib khoom sab) hloov nrog cov magnification thiab inversely proportional to the magnification: object side of view diameter=nominal field of view diameter of the eyepiece/magnification value ntawm lub hom phiaj zoom handwheel zaub nplhaib
2, Kev Tshawb Nrhiav Lub Hom Phiaj Microscopic Magnification thiab National Standards
1. Kev tshawb pom lub hom phiaj magnification
(1) Lub hom phiaj lens scale (1/100, tag nrho ntev 2mm, txhua daim phiaj me me =0.01mm), faib eyepiece (nrog 5/100 ncaj kab faib phaj, txhua daim phiaj me me =0. 05 hli)
Npaj txheej txheem
Ua ntej, kho lub microscope raws li cov kev cai siv ib txwm siv; Hloov lub reticle eyepiece thiab kho cov duab reticle mus rau lub clearest pom lub xeev rau lub ntsuas; Muab tus kav lub hom phiaj rau ntawm lub tshuab tsom mus rau theem, kho qhov kev tsom xam ntawm Hanmeng Purple Star microscope, nrhiav tus pas ntsuas duab ntawm lub hom phiaj tus kav hauv lub qhov muag, thiab ntxiv kho nws mus rau qhov siab thiab qis magnification confocal; Txav mus rau lub hom phiaj ntawm tus pas ntsuas hauv qab daim iav kom haum nws nrog txoj kab sib faib ntug ntawm lub qhov muag; Koj tuaj yeem pib los ntawm kev ntsuas qhov tseeb magnification ntawm txhua qhov nominal magnification ntawm lub hom phiaj lens los ntawm qhov siab mus rau qhov qis magnification.
⑶ Kev ntsuas ntsuas
Tom qab ua tiav qhov kev npaj ua tiav saum toj no, pib qhov ntsuas: ua kom lub zog ntawm lub hom phiaj lens ntsuas nrog "kab ntawm qhov pom" ntawm daim iav lub cev siv lub tes log magnification tooj; Kev soj ntsuam los ntawm ib lub qhov muag thiab ntsuas qhov ntev ntawm 2 hli kav ntawm lub qhov muag sib txawv phaj, faib qhov ntev ntawm tus nqi los ntawm qhov ntev ntawm cov khoom los ntawm 2 hli, yog qhov ntsuas qhov loj ntawm lub tshuab tsom iav lub hom phiaj ntawm qhov taw qhia magnification; Qhov sib txawv ntawm qhov ntsuas qhov ntsuas qhov ntsuas thiab qhov ntsuas qhov ntsuas qhov ntsuas yog qhov ua yuam kev ntawm qhov ntsuas qhov ntsuas.
Kev nthuav dav ntawm sab laug thiab txoj kev kho qhov muag ntawm lub stereoscopic microscope tuaj yeem ntsuas sib cais siv cov kev ntsuas saum toj no.
2. Cov kev cai ntawm National Standards
Raws li GB/T 19864. Qhov sib txawv ntawm qhov sib txawv ntawm sab laug thiab txoj cai kho qhov muag yuav tsum tsis pub tshaj 1.5 feem pua.
Nruam zoom stereoscopic microscope thiab magnification ntsig txog teeb meem
1. Nyob rau hauv cov nqe lus ntawm kev ua tau zoo txoj kev loj hlob kev taw qhia, nruam zoom stereoscopic microscopes yuav tsum caum ob "siab magnification" thiab "loj ntawm saib", uas yog ib tug contradiction. Tshwj xeeb tshaj yog nyob rau hauv cov nqe lus ntawm "loj ntawm saib", thaum lub cheeb ntawm lub eyepiece teb ntawm saib yog txiav txim siab (xws li 24mm), raws li cov saum toj no cov mis nyuj, lub cheeb ntawm cov khoom teb ntawm saib yuav ncav cuag 36.36mm thaum lub hom phiaj magnification. yog 0.66X, ua tau raws li qhov xav tau ntawm high-end kev ua tau zoo ntawm "dav lub kaum ntse ntse, qhov loj ntawm kev pom" rau lub tso suab microscopes ntawm qhov tsis tshua muaj magnification! Cov ntaub ntawv no yeej yog ib qho kev sib tw thiab kev nyuaj siab heev rau stereomicroscopes uas twb muaj lawm. Vim hais tias qhov kev txiav txim ntawm cov ntaub ntawv thiab kho qhov muag system tej yam kev mob (cov ntaub ntawv kev ua tau zoo, imaging zoo, nqi, thiab lwm yam) los ntawm ntau yam txhua yam txwv nws cov kev siv. Ntawm qhov tod tes, rau stereoscopic microscopes, qhov yuav tsum tau ntawm "siab magnification" yog ib qho yooj yim kom ua tiav, vim tias qhov siab dua qhov kev nthuav dav thiab qhov me me ntawm qhov kev pom, qhov kev daws teeb meem zoo dua (hauv qhov sib npaug sib npaug ntawm qhov stereoscopic. microscope). Yog li ntawd, qee tus neeg tsim khoom xaiv "txo qhov kev nthuav dav thiab nce qhov kev nthuav dav" hauv daim iav nruam zoom, txo qhov nyuaj ntawm kev tsim thiab tsim kho qhov muag; Tsis tas li ntawd, los ntawm kev nce qhov sib txawv ntawm qhov sib txawv ntawm daim ntawv lo loj, qhov nyuaj ntawm kev tsim thiab kev tsim khoom tuaj yeem txo thiab cov neeg siv tuaj yeem dag.
2. Ntxiv nrog rau kev soj ntsuam thiab nyob rau hauv kev ua haujlwm ntawm lub tshuab microscope, txuas ntxiv zoom stereoscopic microscopes feem ntau kuj siv rau kev ntsuas lub hom phiaj, tshwj xeeb tshaj yog thaum nruab nrog kev yees duab thiab kev ua haujlwm. Lawv muaj cov kev xav tau siab rau qhov tseeb ntawm ntau yam magnification (tshwj xeeb tshaj yog integer magnification) thiab xav tau kev teeb tsa ntawm "qhov chaw magnification" ntaus ntawv. Yog li ntawd, high magnification raug yog ib qho tseem ceeb qhia txog qhov zoo ntawm tsis tu ncua sib txawv ntawm magnification stereoscopic microscopes.
Stereoscopic microscopes tsis yog cov cuab yeej kho qhov muag uas ua raws li kev nthuav dav. Txhawm rau pab txhawb thiab ua haujlwm tau zoo nyob rau hauv lub tshuab tsom iav, txoj kab uas hla ntawm qhov khoom pom ntawm qhov kev nthuav dav qis kuj yog qhov tsim nyog ua haujlwm tsis zoo! Yog tias peb tab tom nrhiav kev nthuav dav siab, peb tuaj yeem hais kom cov neeg siv yuav khoom siv tshuaj lom neeg zoo dua lossis cov tshuab kuaj kab mob metallographic!
