Qhov sib txawv tseem ceeb ntawm dielectric tas li thiab lub zog dielectric yog qhov dielectric tas li yog qhov sib piv ntawm lub peev xwm ntawm cov khoom siv insulating thiab lub peev xwm ntawm lub tshuab nqus tsev hos lub zog dielectric yog lub zog hluav taws xob ntawm cov khoom siv insulating.
Dielectric qhov tsis tu ncua yog qhov piv thiab tsis muaj cov ntsuas ntsuas thaum lub zog dielectric muaj SI unit volts ib meter lossis V / m. Tsis tas li ntawd, lub zog dielectric yog ib qho khoom siv ntawm cov khoom siv insulating.
Dielectric Constant yog dab tsi?
Dielectric tas li yog cov khoom ntawm cov khoom siv hluav taws xob hluav taws xob uas sib npaug ntawm qhov sib piv ntawm lub peev xwm ntawm cov khoom mus rau lub peev xwm ntawm lub tshuab nqus tsev. Feem ntau, peb siv lub sij hawm dielectric tas li sib hloov nrog lub sij hawm "kev txheeb ze permittivity", txawm tias lawv muaj qhov sib txawv me ntsis. Cov khoom siv hluav taws xob insulating yog hu ua "dielectric". Nyob rau hauv lub ntsiab lus ntawm dielectric tas li, lub sij hawm capacitance ntawm ib yam khoom yog hais txog lub capacitance ntawm lub capacitor uas tau sau nrog cov khoom tshwj xeeb. Thaum txiav txim siab qhov capacitance ntawm lub tshuab nqus tsev, nws hais txog lub peev xwm ntawm lub capacitor zoo tib yam yam tsis muaj cov khoom siv dielectric.
Daim duab 01: Ntoo yog cov khoom siv rwb thaiv tsev
Nyob rau hauv ib lub capacitor, muaj cov paib sib npaug hauv nruab nrab uas tuaj yeem sau nrog cov khoom siv dielectric. Kev muaj cov khoom siv dielectric ntawm ob daim hlau no ib txwm ua kom lub peev xwm nce ntxiv. Qhov ntawd txhais tau tias nws nce lub peev xwm ntawm lub capacitor los khaws cov nqi sib txawv ntawm txhua lub phaj, piv rau nws lub peev xwm tuav cov nqi thaum muaj lub tshuab nqus tsev ntawm ob daim hlau. Rau lub tshuab nqus tsev ntim capacitor, lub capacitance yog suav tias yog ib qho raws li tus qauv siv. Yog li ntawd, txhua yam khoom siv dielectric qhia tau hais tias dielectric tas li uas ntau tshaj ib.
Dielectric zog yog dab tsi?
Dielectric zog yog lub zog hluav taws xob ntawm cov khoom siv insulating. Txawm li cas los xij, muaj ob lub ntsiab lus sib txawv me ntsis rau lo lus no nyob rau hauv thaj chaw ntawm physics. Thaum xav txog cov khoom siv hluav taws xob ntshiab, lub zog dielectric yog qhov siab tshaj plaws hluav taws xob uas cov khoom tuaj yeem tiv taus nyob rau hauv cov xwm txheej zoo tshaj plaws yam tsis muaj hluav taws xob tawg. Ntawm qhov tod tes, thaum txiav txim siab lub zog dielectric rau ib qho tshwj xeeb ntawm cov khoom siv dielectric thiab qhov chaw ntawm electrodes, dielectric tas li yog qhov tsawg kawg nkaus siv hluav taws xob teb uas tuaj yeem ua rau nws cov hluav taws xob tawg. SI unit rau kev ntsuas ntawm dielectric zog yog volts ib 'meter' ntawm V / m.
Lub zog dielectric ntawm cov khoom siv insulating yog ib qho khoom siv sab hauv ntawm cov khoom uas tsis muaj kev ywj pheej ntawm kev teeb tsa ntawm cov khoom ntawd. Nws yog lub npe hu ua "lub zog intrinsic dielectric", thiab nws sib haum mus rau qhov ntsuas ntawm lub zog dielectric uas ntsuas rau cov khoom siv ntshiab nyob rau hauv qhov chaw kuaj mob zoo tagnrho.
Ntau yam tuaj yeem cuam tshuam rau qhov pom meej dielectric zog. Piv txwv li, lub zog dielectric txo nrog nce cov qauv tuab, nws txo qis nrog kev ua haujlwm kub, nws txo qis nrog ntau zaus, nws yuav txo qis nrog cov av noo ntau ntxiv (qhov no yog rau cov roj av), thiab lwm yam.
Qhov txawv ntawm Dielectric qhov tsis tu ncua thiab Dielectric zog yog dab tsi?
Dielectric tas li thiab dielectric zog yog ob nqe lus sib txawv. Qhov sib txawv tseem ceeb ntawm dielectric tas li thiab dielectric lub zog yog qhov dielectric tas li yog qhov sib piv ntawm lub peev xwm ntawm cov khoom siv insulating thiab lub capacitance ntawm lub tshuab nqus tsev hos lub zog dielectric yog lub zog hluav taws xob ntawm cov khoom siv insulating.
Hauv qab infographic qhia txog qhov sib txawv ntawm dielectric tas li thiab dielectric zog hauv daim ntawv.
Summary – Dielectric Constant vs Dielectric Strength
Dielectric tas li yog cov khoom ntawm cov khoom siv hluav taws xob hluav taws xob uas sib npaug ntawm qhov sib piv ntawm lub peev xwm ntawm cov khoom mus rau lub peev xwm ntawm lub tshuab nqus tsev. Lub zog dielectric yog lub zog hluav taws xob ntawm cov khoom siv insulating. Yog li, qhov sib txawv tseem ceeb ntawm dielectric tas li thiab lub zog dielectric yog qhov dielectric tas li yog qhov sib piv ntawm lub peev xwm ntawm cov khoom siv insulating thiab lub peev xwm ntawm lub tshuab nqus tsev hos lub zog dielectric yog lub zog hluav taws xob ntawm cov khoom siv insulating.
