Yuav ua li cas yog ib tug "ultra-high ntau" thiab dab tsi yog qhov tseem ceeb ntawm lub microwave?

Deciphering lub microwave - nws yog "ultra-high zaus." Coob leej xav tias qhov no yog ib yam dab tsi uas nyuaj abstruse teb ntawm physics thiab kev kawm txog zauv, thiab hais tias nws tsis txhawj txog lawv. Txawm li cas los, qhov teeb meem no yog heev txawv. Microwave pab kiag li lawm tau ntev tau nyob ruaj khov hauv peb lub neej, thiab lawv muaj peev xwm yuav nrhiav tau qhov txhia chaw. Tab sis li cas yog nws?

Cov kab kev los ntawm microwave frequencies

Piav microwave - ultra-high zaus electromagnetic tawg, uas yog cov txheej txheem ntawm nyob rau hauv lub zaus spectrum ntawm infrared thiab far-teb UHF. Wavelengths ntawm no ntau yam yog los ntawm peb caug centimeters mus rau ib millimeter. Uas yog vim li cas lub microwave yog tej thaum hu ua centimeter thiab decimeter wavelengths. Nyob rau hauv lub teb chaws kev ntaub ntawv tseem ceeb microwave - microwave ntau yam. Nws yog to taub hais tias lub wavelength yog heev me me piv nrog lub vuag ntawm xov tooj cua broadcasting, uas yog qhov kev txiav txim ntawm ob peb puas meters.

Properties microwave

Nrog nws kav ntev npaum, qhov no hom tsis - intermediate ntawm lub teeb tawg thiab cov xov tooj cua Pib ntsais koj teeb, thiab yog li ntawd nws muaj thaj chaw ntawm ob hom. Piv txwv li, raws li lub teeb, cov tsis propagate raws li ib txog kev ncaj thiab tshuam tag nrho cov tshooj ntau dua los yog tsawg zog yam khoom. Ib yam li ntawd mus rau lub teeb tawg, microwave yuav tsom, thaws rov los, kis tau nyob rau hauv daim ntawv ntawm cov rays. Txawm hais tias seev suab microwave tsom rua lub "super" -high ntau, ntau antennas thiab radar pab kiag li lawm yog ib tug ob peb loj version ntawm tsom iav, lo ntsiab muag thiab lwm yam kho qhov muag hais.

tiam

Txij li thaum tawg ntawm microwaves yog zoo li lub xov tooj cua tsis, thiab nws yog generated zoo xws li cov txoj kev. Deciphering microwave yuav siv cov xov tooj cua tsis rau nws classical kev tshawb xav, tab sis vim lub nce ntau yog ua tau rau kom cov efficiency ntawm nws siv. Piv txwv li, tsuas yog ib beam yuav "nqa" muaj cai mus txog rau txhiab tus xov tooj sib tham ib txhij. Li microwaves thiab lub teeb, qhia nyob rau hauv kev kub ceev portable ntaub ntawv pov thawj pab tau nyob rau hauv radar technology.

Daim ntaub ntawv ntawm microwaves nyob rau hauv radar

Tsis nyob rau hauv lub centimeter thiab decimeter yog hom twg tau qhov kev kawm ntawm kev txaus siab nyob rau hauv lub hnub ntawm lub ob ntiaj teb rog. Thaum muaj ib tug xav rau ib tug zoo thiab txoj kev txhais tau tias ntawm kev pom. Tom qab ntawd peb tshawb xyuas cov microwave rau lawv siv nyob rau hauv radar. Ntawm kab hauv qab no yog hais tias mob siab heev, luv luv pulses yog launched rau hauv qhov chaw, thiab ces ib txhia ntawm cov rays yog kaw tom qab nws rov qab los ntawm cov tsis paub hais tias nyob deb tej khoom.

Kev siv cov microwaves nyob rau hauv telecommunications

Raws li peb tau hais tias, deciphering UHF - ultra siab zaus. Engineers thiab cov kws kho txiav txim siab los siv tau cov no xov tooj cua tsis vim. Nyob rau hauv tag nrho cov teb chaws koom siv coj mus muag kev sib txuas lus txoj kab raws li nyob rau hauv cov kis ntawm high-yoj bands. Tej Pib ntsais koj teeb yog tsis nyob rau hauv lub ntiaj teb nto nkhaus thiab ib tug ncaj kab los ntawm lub relay kev sib txuas lus noj nyob rau ntawm heights Team sib hais txog tsib caug kilometers.

Koj tsis tas yuav loj nyiaj ntawm cov hluav taws xob rau kis tau tus mob, txij li thaum microwaves cia narrowly focused txais tos thiab kis tau tus mob, raws li tau zoo raws li nyob rau hauv qhov chaw nres tsheb enhanced hluav taws xob amplifiers ua ntej relaying. Lub system ntawm antennas, yees, transmitters thiab receivers zoo li kim, tab sis nws them cov nqi tawm ntaub ntawv muaj peev xwm ntawm xws raws.

Daim ntawv thov ntawm microwave frequencies nyob rau hauv lub tshav pob ntawm kev sib txuas lus satellite

Lub system ntawm xov tooj cua yees relay microwave Pib ntsais koj teeb tshaj ntev ncua kev muaj peev xwm tsuas muaj nyob rau daim av. Rau intercontinental kev sib khom lus siv dag satellites, uas yog nyob rau hauv lub geostationary orbit ntawm lub ntiaj teb thiab ua repeater zog. Txhua satellite muab ob peb txhiab sib txuas lus raws siab zoo rau nws cov neeg muas zaub rau cov kis ntawm cov TV thiab xov tooj Pib ntsais koj teeb ib txhij.

Thaum tshav kub kub kev kho mob cov khoom

Tus thawj cov me nyuam siv microwave frequencies zaub mov ua tau txais zoo, thiab txawm zoo siab xyuas. Microwave cub hnub no yog siv raws li ib lub tsev, thiab ib tug loj zaub mov kev lag luam. Generated los ntawm high-power teeb, hluav taws xob lub zog yog feeb meej nyob rau hauv ib tug me me volume, uas tso cai rau thermally kho cov khoom no yog huv si, compact thiab uas ntsiag to.

Ua-nyob rau hauv microwave qhov cub yog nrov tshaj plaws nyob rau hauv lub tsev neeg, thiab muaj peev xwm yuav nrhiav tau nyob rau hauv ntau chav. Tsis tas li ntawd zoo li lub zej lub zos lub hom phiaj pab kiag li lawm yog siv nyob rau hauv tag nrho cov qhov chaw nyob qhov twg ceev cov cua kub thiab kev npaj ntawm cov khoom noj. Microwave cub nrog hniav nyiaj hniav kub, piv txwv li, yog kiag li tsim nyog rau tej lub caij saib lub tsev noj mov.

Lub ntsiab qhov chaw ntawm hluav taws xob

Progress nyob rau hauv cov kev siv ntawm microwaves yog txuam nrog rau lwm cov hluav taws xob xws li ib tug klystron magnetron thiab hais tias yuav ua kom muaj ib tug lossis loj npaum li cas ntawm siab zaus zog. Siv ntawm ib tug magnetron raws li lub hauv paus ntsiab ntawm lub resonant kab noj hniav, uas cov phab ntsa yog lub inductance, thiab qhov chaw ntawm cov phab ntsa - capacitance resonant Circuit Court. Lub qhov ntev ntawm no yog raug xaiv rau qhov kev tsim nyog resonant microwave zaus, uas yuav sib haum mus rau yam piv ntawm cov capacitance thiab inductance.

Yog li, seev suab ntawm lub microwave - tsis tshua muaj high zaus. Qhov luaj li cas ntawm cov generator ncaj qha muaj feem xyuam rau lub hwj chim ntawm tej tawg. Magnetrons me me rau siab frequencies yog li me me uas lawv lub hwj chim muaj peev xwm tsis cuag ib tug fee theem. Qhov teeb meem no kuj yog tsim nyog siv hnyav hlau nplaum. Lub klystron yog cov solved, raws li nyob rau hauv no lwm yam kev siv hluav taws xob yuav tsis tau ib tug sab nraud teb.