Qhov twg zoo 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 ntawm electron microscope hauv thaj chaw ntawm microscopy yog qhov kev cia siab dav dav, ntau dua li qhov kho qhov muag tsom iav tau pom nws qhov tshwj xeeb superiority. Txawm li cas los xij, vim hais tias ntawm daim ntawv thov ntawm optical microscope thiab electron microscope technology thiab teb yog txawv, electron microscope thiab tsis tuaj yeem hloov kho qhov muag microscope.
Daim ntawv thov nyob rau hauv biology, optical microscope daws teeb meem yog deb tsawg tshaj li qhov hluav taws xob microscope, vim hais tias qhov kev daws teeb meem ntawm optical microscope los ntawm qhov kev txwv diffraction, yog li nws cov kev daws teeb meem tsis tuaj yeem tsawg dua ib nrab ntawm lub wavelength ntawm qhov teeb meem teeb meem. Qhov ntawd yog hais tias, yog hais tias qhov teeb meem ntawm 400nm, ces cov khoom soj ntsuam yuav tsis yog tsawg tshaj li 200nm, tab sis vim hais tias nws yuav ua tau tiag tiag-lub sij hawm, dynamic kev soj ntsuam, cov xwm txheej nyob rau hauv biology yog unparalleled, ib yam li nyob rau hauv lub teb ntawm biology yog. tsis yooj yim sua kom tawm ntawm fluorescence microscope thiab confocal thiab lwm yam optical microscopes. Thiab electron microscope vim yog siv cov kab hluav taws xob electron rau scanning imaging, nws cov kev daws teeb meem tau yooj yim mus txog qib nanometer, uas yog irreplaceable rau daim ntawv thov ntawm high-resolution imaging.
Hauv kev siv metallographic, qhov kev nthuav dav ntawm lub tshuab hluav taws xob hluav taws xob kuj tseem nyob deb dua li lub tshuab hluav taws xob kho qhov muag, qhov siab tshaj plaws ntawm lub tshuab hluav taws xob niaj hnub no tau ntau dua 3 lab lub sijhawm, thaum qhov siab tshaj plaws ntawm lub tshuab ntsuas qhov muag yog li 2,{{2 } } zaug, yog li lub tshuab ntsuas hluav taws xob muaj peev xwm ncaj qha saib cov atoms ntawm qee cov hlau hnyav thiab cov muaju hauv cov atom ntawm cov txheej txheem ntawm cov dots.
Cov kauj ruam rau kev siv lub tshuab microscope
1. Tuav caj npab ntawm lub tshuab tsom iav nrog koj sab tes xis thiab lub hauv paus ntawm lub tshuab tsom iav nrog koj sab tes laug. Muab lub tshuab ntsuas ntsuas rau ntawm lub rooj zaum hauv chav kuaj, me ntsis rau sab laug. Mount lub eyepiece thiab lub hom phiaj lens.
2 Tig lub converter kom lub hom phiaj qis-magnification yog ua raws li ntawm lub qhov (qhov kawg ntawm lub hom phiaj lens yuav tsum tau khaws cia ntawm qhov deb ntawm 2 cm los ntawm cov cab kuj theem).
3, Teem lub aperture loj dua ntawm lub qhov taub. Saib rau hauv lub qhov muag nrog koj lub qhov muag sab laug (kom koj lub qhov muag sab xis qhib rau tom qab ib txhij kos duab). Tig lub reflector kom lub teeb pom kev los ntawm qhov dhau-qhov mus rau hauv lub thoob. Los ntawm lub eyepiece, ib tug dawb ci teb pom tau pom.
4, Muab cov ntawv swb kom pom ntawm lub rooj nqa khoom thiab nias nws nrog lub siab clamp, nrog rau cov qauv tig mus rau qhov nruab nrab ntawm lub teeb-los ntawm qhov.
5, tig lub coarse focusing kauv, kom lub thoob ntawm daim iav maj mam nce mus txog rau thaum lub hom phiaj lens ze rau tus swb mus txog rau thaum (lub qhov muag saib lub hom phiaj lens, thiaj li yuav lub hom phiaj lens kov lub slide specimen).
6. Saib rau hauv lub qhov muag nrog lub qhov muag sab laug thiab tig lub ntsej muag ntxhib tsom mus rau qhov sib txawv kom lub thoob ntawm daim iav nce qeeb kom txog thaum koj pom cov khoom kom pom tseeb. Tom qab ntawd tig lub ntsej muag tsom iav me ntsis kom pom cov duab khoom kom meej meej.
