Dab tsi yog qhov magnification ntawm electron microscope
Kev nthuav dav ntawm lub tshuab tsom iav yog hais txog cov khoom ntawm qhov loj ntawm lub qhov muag thiab lub hom phiaj lens, uas ua kom pom qhov ntev lossis qhov dav ntawm cov khoom duab. Yog hais tias qhov loj ntawm lub qhov muag yog 10 npaug thiab qhov loj ntawm lub hom phiaj lens yog 40 npaug, qhov loj ntawm lub tshuab tsom iav yog ═10 × 40═400 zaug.
Muaj ob lub ntsiab lus ntawm kev nthuav dav tag nrho, ib qho yog optical magnification, thiab lwm yam yog digital magnification (digital magnification tsuas yog koom nrog thaum cov khoom siv duab txuas nrog).
1. Optical magnification yog hais txog qhov kev nthuav dav ntawm cov khoom peb saib los ntawm lub tshuab tsom iav qhov muag. Txoj kev suav ntawm optical magnification yog qhov yooj yim, uas yog, lub hom phiaj lens ntau * eyepiece ntau.
Piv txwv li: nyob rau hauv kev xam qhov magnification ntawm lub stereo microscope, lub hom phiaj lens ntawm ib tug nruam zoom stereo microscope feem ntau yog 0.7-4.5 zaug. Nyob rau hauv cov ntaub ntawv ntawm ib tug 10-times eyepiece, tag nrho magnification ntawm no microscope yog 7-45 zaug.
Kev suav ntawm cov tshuab kuaj kab mob lom neeg thiab cov kab mob metallographic microscopes yooj yim dua. Lub hom phiaj dav dav ntawm lub lens configuration yog 4 zaug, 10 zaug, 40 zaug, 100 zaug, qhov kev teeb tsa ntawm lub qhov muag pom yog 10 npaug, thiab tseem muaj 16 zaug, 20 npaug, thiab lwm yam. Tag nrho cov magnification tuaj yeem tau txais los ntawm kev sib npaug nrog ntau yam. ntawm lub hom phiaj lens feem.
2 digital magnification
Digital magnification yog hais txog kev nthuav dav ntawm cov duab uas pom ntawm daim duab tom qab cov cuab yeej sab nraud txuas nrog. Tam sim no, muaj ntau dua trinocular microscopes nyob rau hauv kev ua lag luam, uas txuas nrog computers, saib los yog TVs los ntawm CCD cov cuab yeej rau kev soj ntsuam, thiaj li yuav txo qhov muag nkees. Nws kuj yog ib qho yooj yim los qhia rau lwm tus.
