Qhov txawv ntawm stereo microscope thiab metallographic microscope
1. Teeb pom kev zoo
1. Metallographic microscopes feem ntau muaj qhov tshwj xeeb pom lub teeb pom kev zoo (vim cov qauv pom yog opaque), thiab lub teeb pom kev zoo dhau los ntawm lub lens semi-reflective thiab tom qab ntawd irradiates saum npoo ntawm cov qauv los ntawm lub hom phiaj lens. Kev yees duab hauv lub qhov muag, yog li lub hom phiaj lens hloov lub condenser lens hauv Kohler illumination system. Nyob rau hauv txoj cai, hom teeb pom kev zoo no belongs rau coaxial teeb pom kev zoo, uas yog, lub teeb pom kev zoo thiab lub teeb pom kev zoo nyob hauv tib txoj kev teeb pom kev zoo.
2. Stereo microscopes feem ntau siv cov teeb pom kev sab nraud, xws li sab halogen teeb rau oblique illumination, thiab lub nplhaib LED teeb rau illumination, tab sis cov illumination txoj kev no tsis yog coaxial illumination, thiab lawv illumination lub teeb yog obliquely emitted los ntawm sab, uas yog nyob rau hauv kab. nrog lub ntsiab optical axis. Ib lub kaum ntse ntse, nyob rau hauv txoj cai, yog me ntsis zoo li qhov tsaus ntuj teeb pom kev ntawm lub tshuab ntsuas metallographic. Tsis tas li ntawd, qee lub stereo microscopes kuj muaj cov teeb pom kev zoo coaxial, tab sis cov teeb pom kev zoo coaxial ntawm stereo microscopes muaj qee qhov kev txwv. Yog tias qhov tsim tsis tsim nyog, glare yuav tshwm sim, uas yuav tsum muaj cov khoom siv tshwj xeeb lossis lo ntsiab muag kom tshem tawm nws.
2. Kev nthuav dav
1. Qhov magnification ntawm lub tsom iav tsom iav lub hom phiaj yog siab dua 1.25 npaug thiab qis dua 100 zaug, thiab qhov loj ntawm lub qhov muag yog nyob nruab nrab ntawm 10X thiab 20X. Yog li ntawd, tag nrho cov magnification ntawm metallographic microscope yog nyob nruab nrab ntawm 12.5X thiab 2000 zaug.
2. Lub magnification ntawm lub tso suab microscope nws txawv heev. Yog tias nws yog lub tso suab tso suab rau kev soj ntsuam dav dav, qhov kev nthuav dav yog feem ntau ntawm 0.5 zaug thiab 100 zaug. Yog tias nws yog kev tshawb fawb-qib microscope, qhov kev nthuav dav yuav nce ntxiv thaum txhim kho qhov kho qhov muag zoo. Nce mus txog 200 npaug rau 400 zaug.
3. Khib thiab tsom mechanism
1. Lub thav duab ntawm metallographic microscope feem ntau kuj loj, tab sis txij li thaum lub tshuab ntsuas metallographic siv rau kev tshuaj ntsuam xyuas siab, qhov loj ntawm cov qauv nws tuaj yeem tso tau feem ntau me me, thiab qhov saum npoo ntawm cov qauv feem ntau yuav tsum tau ua. kuj tiaj tus, thiab cov qauv yuav tsum yog hauv av, polished thiab corroded. Tsuas yog rau qhov inverted metallographic microscope, txawm hais tias tus qauv npaj kuj yuav tsum tau, nws yuav luag tsis muaj kev txwv rau qhov loj ntawm cov qauv. Ib qho zoo inverted metallographic microscope tuaj yeem tuav cov qauv hnyav txog 10 kg. Tsis tas li ntawd, lub tsom xam mechanism ntawm lub upright metallographic microscope yog nqa lub theem (tseem muaj ob peb upright microscopes thiab ntsuas microscopes uas nqa lub hom phiaj lens los ntawm tshwj xeeb accessories), thiab lub focusing mechanism ntawm inverted metallographic microscope yog nqa lub hom phiaj lens. lub hom phiaj lens.
2. Qhov loj ntawm lub stereo microscope thav duab feem ntau yog me me, tab sis yog tias nws yog siv nrog lub xov tooj ntawm tes loj, nws tuaj yeem tshawb xyuas cov qauv ntawm ntau qhov sib txawv, suav nrog ncaj qha tshuaj xyuas cov khoom ntawm cov kab ntau lawm, yog li nws muaj qhov xav tau tsawg heev rau cov qauv thiab tsis xav tau kev npaj tshwj xeeb, tsuav yog qhov saum npoo ntawm cov qauv npaj yog roughly tiaj. Vim hais tias lub tso suab iav yog lub teeb, txoj kev tsom ntawm lub stereo microscope yog feem ntau nqa tag nrho cov kev kho qhov muag tus tswv tsev.
