Zaus band - lug siv nyob rau hauv niaj hnub pab kiag li lawm thiab seev

Superhigh ntau zaus - yog electromagnetic tawg, uas yog nyob rau hauv ntau yam ntawm high-zaus thiab TV frequencies nyob deb infrared. Nyob rau hauv lus Askiv-hais lus lub teb chaws nws yog hu ua tus microwave ntau vim hais tias cov wavelength yog heev me me nyob rau hauv kev sib piv nrog rau cov xov tooj cua yoj. Cov oscillations yog intermediate ntawm lub teeb tawg thiab ib tug pa xov tooj cua spectrum, txawm li cas los, lawv muaj txhij cov khoom ntawm lub teeb thiab xov tooj cua tsis. Raws li zoo raws li thermal tawg, lawv yog faib nyob rau hauv daim ntawv ntawm ib tug nqaj, thiab thaws rov los. Raug xws li tsis thiab kis nyob rau hauv ib tug ncaj kab, thiab tus overlap ntawm tag nrho cov khoom khoom. Yog li ntawd, muaj ntau yam kav hlau txais xov radar - yog ua rau kom tus kho qhov muag hais rau hauv daim ntawv ntawm loj tsom iav los lo ntsiab muag.

Nws yuav tsum tau muab sau tseg tias ntau zaus yog zoo li tus tshaj tawm hauv xov spheres tawg thiab, raws li, yuav tsum generated los ntawm cov tib txoj kev. Microwave tawg muaj cov classical kev tshawb xav ntawm xov tooj cua tsis, li ntawd, ntse siv raws li ib tug txhais tau tias ntawm kev sib txuas lus. Txawm li cas los, nws yog ib qho tseem ceeb heev uas nws muaj ib tug ntau dua zaus thiab yog li yuav tau ntau dua rau lub hloov lwm lub tsev ntawm cov ntaub ntawv - nws yuav pab los txhim kho kev sib txuas lus efficiency. Cov kev zoo sib thooj ntawm lub teeb emission pab yuav pab tau rau radar thiab lwm yam technology daim ntaub ntawv.

Qhov no zaus band kuj yog siv nyob rau hauv satellite kev sib txuas lus mus rau kis los yog cov ntaub ntawv tshaj ntev ncua kev. Los ntawm txoj kev tshwj xeeb hluav taws xob yog amplified thiab retransmitted microwave lub teeb liab uas yog kis tau los ntawm hauv av noj. Cov thawj xws puag nyob rau hauv lub 60s ntawm lub xeem tiam, thaum nrog lawv pab tau tshaj tawm hauv xov TV tshaj tawm hauv xov.

Raws li yav dhau los, tej satellites khoom intercontinental sib txuas tau tsim. Tam sim no, xws ultrahigh ntau zaus yuav pab tsheej lab ntawm cov neeg mus saib txhiab ntawm raws ntawm ib tug zoo qib. Tsis tas li ntawd nws yuav siv tau mus rau kis cov xov tooj, TV, fax Pib ntsais koj teeb thiab cov ntaub ntawv.

Nyob rau hauv hnub no lub ntiaj teb no ntawm ultra-high ntau zaus - ib tug kub kev kho mob ntawm cov khoom noj khoom nyob rau hauv tsev thiab nyob rau hauv cov zaub mov ua cov nroj tsuag. Lub zog uas yog generated los ntawm tshwj xeeb haib teeb, feeb meej Kuv nyob rau hauv ib tug me me volume, thiab yog li muaj ib tug kub kev kho mob ntawm cov khoom noj. Tsaug rau cov rays microwaves thiab microwave ncu koj khiav lag luam twj ywm, lawv yog compact thiab huv si. Xws li muaj tau ntse siv nyob rau hauv lub chav ua noj nyob rau hauv lub dav hlau, nyob rau hauv lub w / d tsheb, khw nojmov thiab vending machines nyob rau hauv txoj kev, qhov chaw uas koj xav tau kom sai npaj ib co zaub mov noj.

Nws yuav tsum tau muab sau tseg hais tias ib tug loj loj luag hauj lwm nyob rau hauv txoj kev tshawb no ntawm lub tshuab hluav taws xob thaj chaw ntawm ntau yam khib nyiab no yog ua si microwave tawg. Cov kab kev los ntawm magnetic teb yuav pab tau free electrons tig nyob rau hauv ib tug dav hlau uas yog lawv mus rau cov kev taw qhia ntawm cov magnetic teb. Nyob rau hauv tas li ntawd, yog tias ib tug khoom lub cev coj tawg ntawm lub microwave, ces nws yog ntseeg tau absorbed. Qhov no tshwm sim - ib tug cyclotron resonance, thiab nws yuav siv tau los ntsuas cov zoo loj ntawm lub electron. Los ntawm txoj kev xws ntsuam, zaum tau txais ib tug ntau ntawm nqi lus hais txog semiconductors thiab hluav taws xob zog, raws li zoo raws li co thiab metalloid.