Dab tsi yog qhov txawv ntawm IR vs RF?

Infrared yog abbreviated li IR. Nws yog ib hom hluav taws xob hluav taws xob hluav taws xob nrog lub wavelengths uas ntev dua li pom lub teeb tab sis luv dua li xov tooj cua tsis muaj zog. Nws nquag siv rau kev sib txuas lus wireless vim tias cov teeb liab infrared tuaj yeem xa tau yooj yim thiab tau txais siv IR diodes. Piv txwv li, infrared (IR) yog dav siv rau cov chaw taws teeb tswj cov khoom siv hluav taws xob xws li TV thiab DVD players. Nws tseem tuaj yeem siv rau cua sov, ziab, ntsuas, thiab spectroscopy, thiab lwm yam.

Xov tooj cua zaus yog abbreviated li RF. Nws hais txog ntau yam ntawm electromagnetic frequencies uas feem ntau ua haujlwm rau kev sib txuas lus wireless. Qhov no suav nrog zaus ntawm 3 kHz txog 300 GHz. Los ntawm kev hloov cov zaus, amplitude, thiab theem ntawm cov cab kuj yoj, RF teeb liab tuaj yeem thauj cov ntaub ntawv hla ntau qhov deb. Ntau daim ntawv thov siv RF thev naus laus zis, suav nrog kev sib txuas lus, kev tshaj tawm xov xwm, radar systems, satellite kev sib txuas lus, thiab wireless networking. Xov tooj cua transmitters thiab receivers, WiFi routers, xov tooj ntawm tes, thiab GPS gadgets yog tag nrho cov piv txwv ntawm RF khoom.

Ob leeg IR (Infrared) thiab RF (Xov tooj cua zaus) tau dav siv rau kev sib txuas lus wireless, tab sis muaj qee qhov sib txawv loj:
1. Ntau yam: RF muaj ntau yam ntau dua infrared. Kev xa tawm RF tuaj yeem hla ntawm phab ntsa, thaum lub teeb liab infrared tsis tuaj yeem.
2. Kab ntawm qhov pom: Infrared transmissions yuav tsum muaj ib txoj kab meej ntawm qhov pom ntawm lub transmitter thiab receiver, tab sis cov xov tooj cua zaus cov cim yuav ntws los ntawm cov kev cuam tshuam.
3. Kev cuam tshuam: cuam tshuam los ntawm lwm yam khoom siv wireless hauv cheeb tsam tuaj yeem cuam tshuam rau RF signals, txawm hais tias cuam tshuam los ntawm IR teeb liab tsis txawv.
4. Bandwidth: Vim tias RF muaj bandwidth ntau dua IR, nws tuaj yeem nqa cov ntaub ntawv ntau dua ntawm tus nqi nrawm dua.
5. Kev siv hluav taws xob: Vim tias IR siv hluav taws xob tsawg dua RF, nws yog qhov zoo dua rau cov khoom siv txav tau xws li cov chaw taws teeb tswj.

Hauv cov ntsiab lus, IR yog qhov zoo tshaj rau kev sib txuas lus luv luv, kab ntawm kev pom, qhov RF yog qhov zoo dua rau kev sib txuas lus ntev, cuam tshuam-kev sib txuas lus.

Tiv tauj pebthiab peb tuaj yeem qhia cov ntaub ntawv ntxiv txog LED sawb teeb.