Dab tsi yog electron microscope magnification?
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 cov tshuab kuaj kab mob lom neeg thiab cov kab mob metallographic yog yooj yim dua. Lub hom phiaj ntawm lub hom phiaj yog 4 zaug, 10 zaug, 40 zaug, thiab 100 zaug. Cov pa configuration eyepiece yog 10 zaug. Tsis tas li ntawd, muaj 16 zaus thiab 20 zaus. Tag nrho cov magnification tuaj yeem tau txais los ntawm kev sib npaug ntawm qhov sib npaug ntawm qhov muag thiab lub hom phiaj lens feem.
2 digital magnification
Digital magnification yog hais txog kev nthuav dav ntawm cov duab pom ntawm lub cuab yeej sab nraud. Tam sim no, feem ntau ntawm trinocular microscopes nyob rau hauv kev ua lag luam tau txuas nrog cov khoos phis tawj, saib lossis TVs los ntawm CCD cov khoom siv rau kev soj ntsuam, txhawm rau txo qhov muag nkees thiab pab sib koom nrog lwm tus.
