Dab tsi yog qhov zoo tshaj plaws ntawm lub resonant circuit? Wuhan UHV tshwj xeeb hauv kev tsim khoomseries resonant khoom siv, nrog ntau yam khoom xaiv thiab kev kuaj hluav taws xob. Thaum nrhiavseries resonant khoom siv, xaiv Wuhan UHV
Resonant circuits muaj ntau yam kev siv hauv tshuab hluav taws xob Cov yam ntxwv ntawm cov hluav taws xob hluav taws xob muaj feem cuam tshuam nrog nws qhov zoo tshaj plaws (piv txwv li Q tus nqi) Yuav kom tau txais Q tus nqi ntawm ib lub voj voog, ib qho yuav tsum pib los ntawm nws cov ntsiab lus kom muaj kev nkag siab tob txog lub ntsiab lus ntawm Q tus nqi thiab kev nkag siab ntau dua ntawm cov yam ntxwv ntawm resonant circuits. Thaum kawm ntau yam resonant circuits, qhov zoo tshaj plaws Q tus nqi ntawm Circuit Court feem ntau koom nrog. Yog li Q tus nqi yog dab tsi? Hauv qab no peb yuav muab cov ncauj lus kom ntxaws.
Lub ntsiab txhais ntawm qhov zoo tshaj plaws yog txhais los ntawm lub zog, uas sawv cev rau kev sib raug zoo ntawm kev sib raug zoo ntawm lub zog nyob rau hauv ib lub voj voog, uas yog, lub zog cia efficiency ntawm lub circuit. Lub ntsiab lus ntawm lub cev zoo tuaj yeem qhia meej meej los ntawm lub ntsiab lus ntawm lub zog zoo, uas muaj qhov tseem ceeb thoob ntiaj teb rau ntau yam circuits.
Rau kev suav ntawm qhov zoo tshaj plaws ntawm RLC series yooj yim thiab cov kab hluav taws xob sib txuas, peb tuaj yeem siv ncaj qha rau lub ntsiab lus ntawm qhov zoo tshaj plaws hauv RLC series thiab parallel circuits, tab sis rau me ntsis nyuaj RLC resonant circuits, cov qauv no tsis siv ntxiv lawm. Lub ntsiab lus tseem ceeb tshaj plaws ntawm qhov zoo tshaj plaws, uas yog lub zog txhais, yuav tsum yog qhov zoo tshaj plaws ntawm txhua lub voj voog resonant uas tuaj yeem suav tau, tab sis nws tuaj yeem ua tau heev.
Daim duab 1 qhia tau hais tias ib tug series resonant Circuit Court uas muaj ib tug capacitor C, ib tug inductor L, thiab ib tug to ntawm lub capacitor thiab ib txoj kab tsis kam ntawm inductor R. Qhov complex impedance Z ntawm Circuit Court no yog cov sum ntawm complex impedances ntawm peb Cheebtsam.
Daim duab 1
Z=R+jωL+(-j/ωC)=R+j(ωL-1/ωC) ⑴
Qhov tsis kam R hauv qhov sib npaug saum toj no yog qhov tseeb ntawm tus lej nyuaj, thiab qhov sib txawv ntawm qhov inductive reactance thiab capacitive reactance yog qhov xav txog ntawm tus lej complex. Peb hu rau qhov xav txog qhov reactance, sawv cev los ntawm X, thiab ω yog lub voj voog zaus ntawm cov teeb liab thov.
Thaum X=0, lub voj voog nyob rau hauv lub xeev resonant, qhov twg inductive thiab capacitive reactance tshem tawm ib leeg tawm, piv txwv li qhov xav txog hauv kab zauv ⑴ yog xoom, ua rau qhov tsawg kawg nkaus impedance hauv Circuit Court. Yog li ntawd, tam sim no nyob rau ntawm nws qhov siab tshaj plaws, thiab tam sim no Circuit Court yog ib qho kev tiv thaiv kev tiv thaiv ib puag ncig, qhov twg qhov voltage thiab tam sim no hauv Circuit Court nyob rau theem. Thaum ib lub voj voog resonates, nws capacitance yog sib npaug rau nws inductance, yog li qhov zoo voltage thoob plaws capacitor thiab inductor yuav tsum sib npaug,
Tus nqi zoo ntawm qhov voltage ntawm lub capacitor UC=I * 1/ω C=U/ω CR=QU Quality factor Q=1/ω CR, qhov twg kuv yog tag nrho tam sim no ntawm lub circuit.
Tus nqi zoo ntawm qhov voltage ntawm inductor UL=ω LI=ω L * U/R=QU Quality factor Q=ω L/R
Vim tias UC=UL, Q=1/ω CR=ω L/R
Qhov piv ntawm qhov voltage ntawm lub capacitor rau lub teeb liab siv voltage U UC/U=(I * 1/ω C)/RI=1/ω CR=Q Qhov piv ntawm qhov voltage ntawm inductor rau lub teeb liab voltage U UL/U=ω LI/RI=ω L/R=Q
Los ntawm cov kev soj ntsuam saum toj no, nws tuaj yeem pom tias qhov zoo dua ntawm cov khoom siv hluav taws xob, qhov siab dua qhov voltage ntawm inductor lossis capacitor piv rau qhov siv hluav taws xob.
Xaus
Lub zog txhais ntawm qhov zoo tshaj plaws qhia meej meej lub ntsiab lus ntawm lub cev zoo thiab muaj qhov tseem ceeb thoob ntiaj teb rau ntau yam circuits. Txawm li cas los xij, nws yog qhov nyuaj heev, txawm tias nyuaj, siv nws los daws qhov ua tau zoo ntawm cov kab hluav taws xob ntau dua. Lub ntsiab txhais ntawm qhov zoo tshaj plaws ntawm series thiab parallel resonant circuits yog txhais ncaj qha los ntawm qhov kev xav ntawm qhov tsis sib xws. Qhov kev txhais no muaj txiaj ntsig zoo rau kev suav cov txiaj ntsig zoo, tab sis los ntawm kev nkag siab qhov kev xav, nws tsis meej npaum li lub zog txhais ntawm qhov zoo, ua kom yooj yim pom nws lub ntsiab lus ntawm lub cev. Los ntawm cov ntaub ntawv pov thawj hauv thawj ntu, peb tuaj yeem pom tias lub ntsiab lus ntawm qhov zoo tshaj plaws ntawm series thiab parallel resonant circuits tuaj yeem muab tau los ntawm lub zog txhais ntawm qhov zoo, thiab ob qho tib si sib npaug. Cov mis laij lej yooj yim rau kev muab cov txiaj ntsig zoo ntawm txhua qhov resonant Circuit Court muab rau hauv tsab xov xwm no yog qhov zoo rau kev muab cov txiaj ntsig zoo ntawm kev suav cov mis ntawm ntau yam lumped parameter resonant circuits, tshwj xeeb tshaj yog rau ntau txoj hauv kev resonant circuits. Ntev npaum li qhov sib npaug tsis kam, inductance, thiab capacitance ntawm Circuit Court nyob rau hauv resonance tej yam kev mob tau txais, qhov zoo tshaj plaws xam ntawm lub series resonant Circuit Court tuaj yeem siv ncaj qha kom tau txais qhov zoo tshaj plaws ntawm Circuit Court. Txoj kev no yog qhov yooj yim thiab yooj yim rau kev siv, tshwj xeeb tshaj yog rau kev daws teeb meem nyuaj, ua kom pom qhov zoo tshaj plaws.