Dab tsi yog qhov kev nthuav dav ntawm electron microscope?
Kev nthuav dav ntawm lub tshuab tsom iav yog cov khoom lag luam ntawm qhov loj ntawm lub qhov muag thiab lub hom phiaj lens, uas ua kom pom qhov ntev lossis qhov dav ntawm daim 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 tag nrho qhov kev nthuav dav, ib qho yog qhov kev nthuav dav ntawm qhov muag, ib qho yog qhov kev nthuav dav digital (tsuas yog thaum txuas nrog cov duab kos duab yuav koom nrog hauv digital magnification).
1, optical magnification yog hais txog qhov loj ntawm cov khoom peb saib los ntawm lub tshuab tsom iav qhov muag. Optical magnification yog xam nyob rau hauv ib tug kuj yooj yim txoj kev, uas yog, lub hom phiaj lens magnification * eyepiece magnification.
Piv txwv li, txhawm rau xam qhov kev nthuav dav ntawm lub tso suab tso suab, lub hom phiaj lub lens ntawm lub tso suab nrov txuas ntxiv yog feem ntau yog 0.7-4.5 npaug, tom qab ntawd nrog 10 npaug ntawm qhov muag, tag nrho qhov loj ntawm lub tshuab ntsuas no yog 7-45 zaug.
Lub tshuab kuaj kab mob lom neeg, lub tshuab kuaj kab mob metallurgical yog yooj yim dua rau kev suav, qhov kev teeb tsa dav dav ntawm lub hom phiaj lens yog 4 zaug, 10 zaug, 40 zaug, 100 zaug, lub ntsej muag yog niaj hnub teeb tsa rau 10 zaug, ntxiv rau 16 zaug, 20 zaug, thiab lwm yam. ., tsuav yog lub eyepieces thiab lub hom phiaj lens yog multiplied los ntawm lub magnification ntawm tag nrho cov magnification yuav tau.
2 digital magnification
Digital magnification yog hais txog cov khoom siv sab nraud, qhov kev nthuav dav pom ntawm daim duab, kev lag luam tam sim no yog ntau dua trinocular microscope, los ntawm CCD ntaus ntawv txuas nrog lub computer, saib lossis TV rau kev soj ntsuam, txhawm rau txo qhov muag nkees, tab sis kuj yooj yim rau qhia rau lwm tus.
