Qhov twg zoo dua, 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 microscope hauv thaj chaw microscopic yog qhov dav heev, thiab nws qhia tau hais tias nws qhov tshwj xeeb zoo piv nrog lub tshuab ntsuas qhov muag. Txawm li cas los xij, vim tias cov thev naus laus zis thiab thaj chaw ntawm daim ntawv thov ntawm optical microscopes thiab electron microscopes txawv, electron microscopes tsis tuaj yeem hloov kho qhov muag microscopes.
Rau kev siv hauv biology, lub zog daws teeb meem ntawm lub tshuab tsom iav kho qhov muag yog qhov qis dua ntawm lub tshuab hluav taws xob hluav taws xob, vim tias qhov kev daws teeb meem ntawm lub tshuab tsom iav qhov muag raug txwv los ntawm qhov tsis sib xws, yog li nws qhov kev daws teeb meem tsis tuaj yeem tsawg dua li ib nrab ntawm lub teeb ntawm lub teeb pom kev. . Qhov ntawd yog hais tias, yog siv teeb pom kev zoo ntawm 400nm, cov khoom pom tsis tuaj yeem me dua 200nm. Txawm li cas los xij, vim tias nws tuaj yeem ua tau raws sijhawm thiab kev soj ntsuam zoo, nws cov xwm txheej hauv biology yog qhov tsis sib xws. Nws yog tsis yooj yim sua kom tawm optical microscopes xws li fluorescence microscopes thiab confocals nyob rau hauv lub teb ntawm biology. Txij li thaum lub tshuab ntsuas hluav taws xob siv hluav taws xob siv hluav taws xob los ntsuas thiab duab, nws qhov kev daws teeb meem tuaj yeem yooj yim mus txog qib nanometer, uas tsis tuaj yeem hloov pauv rau daim ntawv thov kev daws teeb meem siab.
Nyob rau hauv daim ntawv thov ntawm metallographic tsom xam, qhov magnification ntawm electron microscope yog deb tshaj li ntawm lub optical microscope. Qhov siab tshaj plaws magnification ntawm niaj hnub electron microscope tau tshaj 3 lab lub sij hawm, thaum lub siab tshaj plaws magnification ntawm optical microscope yog hais txog 2000 zaug. Microscopes tuaj yeem saib ncaj qha cov atoms ntawm qee cov hlau hnyav thiab cov txheej txheem atomic lattices zoo nyob hauv cov muaju.
