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. Piv txwv li, qhov loj ntawm lub qhov muag yog 10 npaug, qhov loj ntawm lub hom phiaj lens yog 40 npaug, thiab 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 magnification ntawm ib yam khoom pom los ntawm lub qhov muag ntawm lub tshuab tsom. Txoj kev suav ntawm optical magnification yog qhov yooj yim, uas yog, lub hom phiaj magnification * eyepiece magnification.
Piv txwv li, thaum xam qhov magnification ntawm lub stereoscopic microscope, lub hom phiaj lens ntawm ib tug nruam zoom stereoscopic microscope feem ntau yog 0.7-4.5 zaug, thiab tag nrho cov magnification ntawm lub tshuab ntsuas no yog {{3} } zaug nyob rau hauv cov xwm txheej ntawm 10 zaug eyepiece.
Kev suav cov tshuab kuaj kab mob lom neeg thiab cov tshuab kuaj kab mob metallographic yooj yim dua. Lub hom phiaj ntawm lub hom phiaj yog 4 zaug, 10 zaug, 40 zaug thiab 100 zaug, qhov kev teeb tsa ntawm lub qhov muag yog 10 zaug, thiab muaj 16 zaug thiab 20 zaug, thiab lwm yam. Raws li ntev raws li qhov ntau ntawm qhov muag thiab lub hom phiaj lens yog multiplied. , tag nrho magnification tuaj yeem tau txais.
2 digital magnification
Digital magnification yog hais txog qhov kev nthuav dav pom ntawm daim duab tom qab ib qho khoom siv sab nraud txuas nrog. Tam sim no, lub tshuab ntsuas peb lub qhov muag feem ntau yog siv nyob rau hauv kev ua lag luam, uas txuas nrog lub computer, saib lossis TV los ntawm CCD cov cuab yeej rau kev soj ntsuam, txhawm rau txo qhov muag nkees thiab pab sib koom nrog lwm tus.
