A lossy dielectric lossy dielectric Qhov poob tangent yog ces txhais raws li tus piv (los yog lub kaum sab xis nyob rau hauv ib tug complex dav hlau) ntawm lub lossy teb rau hluav taws xob teb E nyob rau hauv lub curl sib npaug rau cov tsis tshua muaj tshwm sim:. Rau dielectrics nrog me me poob, lub kaum sab xis yog ≪ 1 thiab tan δ ≈ δ. https://en.wikipedia.org › wiki › Dielectric_loss
Dielectric poob - Wikipedia
tuaj yeem piav qhia raws li qhov nruab nrab qhov twg qee feem ntawm cov hluav taws xob yoj hluav taws xob ploj thaum nthwv dej nthuav tawmLub zog poob yog vim kev ua tsis zoo. … Phase tas li (?) yog qhov ntsuas ntawm theem hloov mus rau qhov ntev thiab hu ua theem tsis tu ncua lossis yoj tus lej.
Puas yog qhov nruab nrab poob yog tus coj zoo?
1.5.
Ib tug lossy dielectric nruab nrab txhais tau tias yog ib tug nruab nrab nyob rau hauv uas cov hluav taws xob conductivity tsis sib npaug zos rau xoom tsis tau nws tsis yog ib tug zoo conductor… Raws li qhov sib npaug 1.15 thiab 1.16, lub amplitude ntawm hluav taws xob thiab magnetic teb txo exponentially nrog kev mus los (Fig.
Dab tsi yog cov khoom poob?
[′lȯs·ē mə′tir·ē·əl] (physics) Ib yam khoom uas dissipates lub zog ntawm electromagnetic los yog acoustic zog dhau los ntawm nws.
Puas yog huab cua lossy media?
Air feem ntau poob qis heev (tsis pom zoo attenuation) nrog me ntsis polarization lossis magnetization. Yog li, peb tuaj yeem ua qauv huab cua li qhov chaw dawb (nqus) nrog F=0,,=, o, thiab:=:o (, r=1,: r=1). Peb tuaj yeem ua tshwj xeeb rau qhov tsis muaj qhov sib npaug nruab nrab rau rooj plaub ntawm qhov chaw dawb.
Puas yog qhov poob tangent ntawm lossless dielectric?
Nco ntsoov tias poob tangent yog zero rau cov khoom uas tsis muaj (σ≡0), thiab nce nrog nce poob.
