Vim li cas ho tsis tau electron microscopes hloov optical 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 teeb meem yuav immense nyob rau hauv loj heev magnification. Txawm hais tias nws lub zog daws teeb meem zoo dua li ntawm cov khoom siv kho qhov muag, cov tshuab hluav taws xob hluav taws xob yuav tsum ua haujlwm nyob rau hauv lub tshuab nqus tsev, yog li nws nyuaj rau kev soj ntsuam cov kab mob nyob, thiab irradiation ntawm cov kab hluav taws xob yuav ua rau hluav taws xob puas tsuaj rau cov qauv lom neeg, yog li lawv tsis tuaj yeem ua tiav. hloov kho qhov muag 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 hluav taws xob hluav taws xob yog lub tshuab hluav taws xob kho qhov muag nrog qhov sib ntxiv ntawm CCD, cov tshuaj ntsuam xyuas lossis lub computer thiab lwm yam khoom siv. Nws 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 video imaging, hluav taws xob amplification yog virtual amplification, thiab nyob rau hauv cov nqe lus ntawm pixels, photosensitivity los thiab lwm yam, nws txawv heev ntawm cov tib neeg lub qhov muag, yog li ntawd cov nyhuv yog txawv heev ntawm qhov pom ntawm lub microscope;
2. Muaj lwm qhov laj thawj tseem ceeb. CCD yog lub dav hlau imaging, thaum tib neeg lub qhov muag, tshwj xeeb tshaj yog thaum soj ntsuam nrog binoculars, yuav ua rau muaj zog peb-dimensional kev nkag siab. Qhov no yog vim li cas vim li cas qhov tob ntawm thaj chaw cuam tshuam ntawm ob qhov loj heev;
3. Electron microscopes feem ntau sawv cev los ntawm electron scanning microscopes. Cov nyhuv ntawm lub tshuab ntsuas no yog qhov zoo dua li ntawm cov khoom siv kho qhov muag zoo tib yam. Txawm li cas los xij, vim nws kim heev, nws tsis tshua siv hauv kev lag luam.
