Dab tsi yog qhov kev nthuav dav dav dav ntawm electron microscope?
Kev nthuav dav ntawm lub tshuab tsom iav yog hais txog cov khoom lag luam ntawm qhov loj ntawm lub qhov muag thiab lub hom phiaj lens. Dab tsi yog magnified yog qhov ntev lossis dav ntawm cov duab khoom. Piv txwv li, 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 cov magnification, ib qho yog optical magnification, thiab lwm yam yog digital magnification (digital magnification tsuas yog koom nrog thaum ib qho khoom siv txuas nrog).
1. Optical magnification yog hais txog qhov magnification yam ntawm cov khoom uas peb soj ntsuam los ntawm lub microscope eyepiece. Txoj kev suav ntawm optical magnification yog qhov yooj yim, 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 lens ntawm lub tso suab tsis tu ncua tsis tu ncua feem ntau yog 0.7-4.5 zaug. Nyob rau hauv cov ntaub ntawv ntawm ib tug 10x eyepiece, tag nrho magnification ntawm no microscope yog 7-45 zaug.
Kev suav cov tshuab kuaj kab mob lom neeg thiab cov tshuab kuaj kab mob metallographic yooj yim dua. Lub hom phiaj dav dav ntawm lub lens configuration yog 4x, 10x, 40x, thiab 100x. Qhov kev teeb tsa ntawm qhov muag pom tau zoo yog 10x, thiab tseem muaj 16x, 20x, thiab lwm yam, tsuav yog cov eyepieces muab ntau ntxiv nrog rau qhov loj ntawm lub hom phiaj lens kom tau txais tag nrho qhov loj.
2 digital magnification
Digital magnification yog hais txog qhov zoo tshaj plaws magnification tso tawm ntawm daim duab tom qab tau txuas nrog ib qho khoom siv sab nraud. Tam sim no, cov neeg feem coob ntawm kev ua lag luam siv lub microscope trinocular, uas txuas nrog lub khoos phis tawj, saib lossis TV los ntawm CCD cov cuab yeej rau kev soj ntsuam xyuas kom txo qhov muag qaug zog. Nws kuj yog ib qho yooj yim los qhia rau lwm tus.
