Vim li cas ho tsis tau electron microscopes hloov lub teeb microscopes?
Electron microscopes siv lub hauv paus ntsiab lus ntawm electron optics, hloov lub teeb beam thiab optical lo ntsiab muag nrog electron beams thiab electron lo ntsiab muag, thiaj li hais tias cov qauv zoo ntawm cov khoom muaj peev xwm yuav imaged nyob rau hauv heev magnifications. Txawm hais tias nws lub zog daws teeb meem zoo dua li ntawm optical microscopes, electron microscopes nyuaj rau kev soj ntsuam cov kab mob nyob hauv lub cev vim tias lawv yuav tsum tau ua haujlwm nyob rau hauv lub tshuab nqus tsev, thiab irradiation ntawm electron beams kuj yuav ua rau hluav taws xob puas tsuaj rau cov qauv lom, yog li nws tsis tuaj yeem hloov pauv. optical microscopes. Microscopes, thiab lawv cov nqi sib txawv, thiab lawv cov kev ua haujlwm tsim nyog kuj txawv. Vam tias kuv cov lus teb yuav pab tau koj.
Yog vim li cas vim li cas electron microscopes tsis tuaj yeem hloov kho qhov muag microscopes yog raws li hauv qab no:
1. Lub tshuab ntsuas hluav taws xob yog nyob rau hauv lub tshuab ntsuas qhov muag thiab ntxiv cov khoom siv xws li CCD, lub vijtsam zaub lossis lub computer. Qhov no tsuas tuaj yeem hais tias yog lub tshuab tsom iav video. Thaum lub sij hawm tag nrho cov txheej txheem, CCD hloov lub qhov muag ntawm tib neeg. Vim hais tias nyob rau hauv kev yees duab imaging, hluav taws xob magnification yog virtual magnification, thiab nyob rau hauv cov nqe lus ntawm pixels, photosensitive teebmeem thiab lwm yam, nws txawv dhau ntawm tib neeg lub qhov muag, yog li nws txawv dhau ntawm qhov pom kev siv lub tshuab tsom;
2. Lwm qhov laj thawj tseem ceeb tshaj plaws yog CCD yog lub dav hlau imaging, thiab tib neeg lub qhov muag, tshwj xeeb tshaj yog nyob rau hauv cov ntaub ntawv ntawm kev soj ntsuam binocular, yuav ua rau muaj kev nkag siab zoo ntawm peb-dimensionality, uas yog vim li cas vim li cas qhov sib txawv ntawm qhov tob ntawm thaj tsam zoo ib yam. loj;
3. Electron microscopes feem ntau qhia tias electron scanning microscopes. Cov nyhuv ntawm lub tshuab ntsuas no yog qhov zoo dua li qhov dav dav ntawm optical microscopes, tab sis vim nws tus nqi siab, nws tsis tshua siv hauv kev lag luam.
