Dab tsi yog qhov muaj zog dua, optical microscope lossis electron microscope?
Nrog rau txoj kev loj hlob sai ntawm kev tshawb fawb thiab thev naus laus zis, daim ntawv thov kev cia siab ntawm electron microscopy hauv thaj chaw ntawm microscopy yog qhov dav heev, ua kom pom nws qhov tshwj xeeb zoo tshaj qhov kho qhov muag microscopy. Txawm li cas los xij, vim muaj cov thev naus laus zis sib txawv thiab thaj chaw ntawm kev siv ntawm optical microscopes thiab electron microscopes, electron microscopes tsis tuaj yeem hloov kho qhov muag microscopes.
Hais txog kev siv tshuaj lom neeg, qhov kev daws teeb meem ntawm optical microscopes yog qhov qis dua ntawm electron microscopes, vim hais tias qhov kev daws teeb meem ntawm optical microscopes raug txwv los ntawm kev txwv diffraction, yog li nws qhov kev daws teeb meem tsis tuaj yeem tsawg dua ib nrab ntawm lub teeb ntawm lub teeb teeb meem. Qhov ntawd yog hais tias, yog siv 400nm teeb pom kev zoo, cov khoom pom tsis tuaj yeem tsawg dua 200nm. Txawm li cas los xij, vim nws muaj peev xwm ua tau raws sijhawm thiab kev soj ntsuam zoo, nws txoj haujlwm hauv biology yog qhov tsis sib xws. Nws yog tsis yooj yim sua kom tawm ntawm optical microscopes xws li fluorescence microscopy thiab confocal microscopy nyob rau hauv lub teb ntawm biology. Vim yog siv cov kab hluav taws xob rau kev soj ntsuam thiab kev ntsuam xyuas, electron microscopes tau yooj yim ua tiav nanometer daws teeb meem, uas yog irreplaceable rau high-resolution imaging daim ntaub ntawv.
Nyob rau hauv cov nqe lus ntawm daim ntawv thov nyob rau hauv metallographic tsom xam, lub magnification ntawm electron microscopes deb tshaj ntawm optical microscopes. Qhov siab tshaj plaws magnification ntawm niaj hnub electron microscopes tau tshaj 3 lab lub sij hawm, thaum lub siab tshaj plaws magnification ntawm optical microscopes yog hais txog 2000 zaug. Yog li, electron microscopes tuaj yeem ncaj qha saib xyuas cov txheej txheem atomic lattice hauv cov atoms thiab cov muaju ntawm qee cov hlau hnyav.
