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Video: Nws txhais li cas rau attenuate lub teeb liab?
2024 Tus sau: Lynn Donovan | [email protected]. Kawg hloov kho: 2023-12-15 23:47
Attenuation yog ib lo lus dav dav uas hais txog kev txo qis hauv lub zog ntawm a teeb liab . Attenuation tshwm sim nrog txhua hom teeb liab , txawm tias digital lossis analog. Qee zaum hu ua poob, attenuation yog ib tug natural txim ntawm teeb liab kis tau tus mob mus ntev.
Hais txog qhov no, dab tsi ua rau lub teeb liab attenuation?
Inherent attenuation tuaj yeem yog ua rau los ntawm ib tug xov tooj ntawm signaling teeb meem nrog rau: kis nruab nrab - Allelectrical teeb liab kis tau hluav taws xob conductors ua rau electromagnetic teb nyob ib ncig ntawm lub kis tau tus mob. Crosstalk los ntawm nyob ib sab cabling ua rau attenuation nyob rau hauv tooj liab lwm yam conductive hlau cable.
Ib sab saum toj no, attenuation cuam tshuam cov teeb liab kis tau li cas? Optics. Attenuation hauv fiber optics, tseem hu ua kis tau tus mob poob, yog qhov txo qis ntawm lub teeb beam (los yog teeb liab ) hais txog kev deb travelledthrough a kis tau tus mob nruab nrab. Attenuation yog ib qho tseem ceeb yam limiting kis tau tus mob ntawm ib qho digital teeb liab hla qhov deb loj.
Ib tug kuj yuav nug, ua li cas koj txo cov teeb liab attenuation?
Lower poob dielectrics
- Lub teeb liab attenuation tuaj yeem raug txo los ntawm kev xaiv cov khoom siv qis dua ntawm tus nqi nce ntau dua li txo qhov ntev PCBrouting.
- Lub pulse teb tus Tsov tus tw, los yog dispersion, yog sib txawv ntawm cov khoom uas tsis tshua muaj thiab siab.
Yuav ua li cas koj xam attenuation?
Hloov ib pawg attenuation coefficient (m / r) mus rau linear attenuation coefficient (m), tsuas yog muab nws los ntawm qhov ceev (r) ntawm cov khoom. Ib qho kev siv linear attenuation coefficients yog xaiv cov hluav taws xob hluav taws xob uas yuav tsim qhov sib txawv ntawm cov ntaub ntawv tshwj xeeb hauv xov tooj cua.
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