Uyini njalo Kwe-dielectric Heating medium

Ngesikhathi esafunda esikoleni samabanga ezifundweni uthisha physics, ukhuluma ngani izenzakalo kagesi, uchaza lokho njalo Kwe-dielectric Heating medium. Esikhathini esizayo, uma umsebenzi oyinhloko awahlobene ubunjiniyela kagesi, isihloko kwaba ukhohliwe ngokuphepha. Kuleli phephandaba, sikhumbula lokho yasisiza le ncazelo.

Ngokuvamile, ukuze uthole incazelo igama elithi "njalo Kwe-dielectric Heating medium" ngokuvamile kubhekwa isibonelo capacitor kabani amapuleti flat. Okumela capacitor elula etholakala vacuo. Nquma ukubaluleka kwenkokhiso kagesi :

Qv = (U * S * Ev) / d,

lapho d - ibanga phakathi amapuleti, U - voltage, S - endaweni plate, Ev - Kwe-dielectric Heating. njalo. Lesi sakamuva kuyinto ukubaluleka inkomba, kuba njalo Kwe-dielectric Heating medium ngaphandle komoya (cleaner), okulinganako 8.85 * 10 -12 Farad degree imitha ngalinye.

Kodwa capacitors uhlukanisa ipuleti yokukubhala a cleaner hhayi kuphela, kodwa omunye umsebenzi Kwe-dielectric Heating. Ngokusobala, kuleli cala njalo Kwe-dielectric Heating medium kuhlukile «Ev» Ngakho-ke, icala kuyahlukahluka. Uma capacitor ixhunywe umthombo amandla electromotive, ukubaluleka icala ukuthi ubeke amapuleti iba Qz. I njalo Kwe-dielectric Heating we indaba iyona ratio icala Qz epholisayo amapuleti exhunywe kwi icala endabeni cleaner Qv, isb

E = Qz / Qv.

Ngokusobala, ubukhulu engekho. epholisayo Powered kuthatha amandla emthonjeni.

Empeleni, kuba isihlobo njalo Kwe-dielectric Heating medium. Likhombisa ukuthi mangaki izikhathi umfutho incipha icala nokuxhumana ahlukaniswe Kwe-dielectric Heating, kunalapho namapulethi vacuo. Ungakwazi futhi ukuthi le ingenye izici ezibonakalayo.

Uma ekuqongeleleni icala ukuthi ubeke amapuleti we okuphakela amandla wayeka, kukhona ngumkhuba ezahlukene. Bephonsa voltage, futhi ngenxa yalokho, kunciphe lo kagesi emkhakheni umfutho. Kungani?

Noma iyiphi impahla siqukethe ama-athomu electrons azungeza nuclei. Lapho kagesi ukusatshalaliswa ensimini kwenzeka yenethiwekhi ngalinye elithwala we polarity isenzo yangaphandle - kwaba nokwehlukana okuthiwa obumba dipole. Le imeyili wakhe ukubukeka. Indaba ngokwayo kungase kuhilele molecule elimboze izindawo ezibandayo kanye nonpolar. Esimweni sokuqala, ingqamuzana is ngamakhasimende ngokuvumelana emkhakheni (voltage), kanye dipoles caster, le permittivity isihlobo kunalokho okusezingeni eliphezulu. Inani permeability ngokuvamile mkhulu amayunithi angaphezu kwangu-100. Esimeni sesibili (molecule non-polar), nakuba ngenxa isenzo emkhakheni kanye dipoles akhiwa, ingxenye amandla wachitha ukulondoloza ukumisa kwabo kwendawo, Nokho permeability ongabalulekile futhi uthukela idlula amayunithi 5. Kufanele kuqashelwe ukuthi imfuyo gaseous njalo has a permeability ongaphakeme ngenxa yenani elincane molecule per unit umthamo, kungakhathaliseki isakhiwo zabo zemvelo.

Ukuze izinto ezivamile Kwe-dielectric Heating idatha permeability kunikezwe encwadini ethi amatafula abafanele, ngakho lapho enza izibalo akukho nobunzima nge kwencazelo ukubaluleka oyifunayo. Ngokuthakazelisayo, emoyeni has a permeability 1 iyunithi. Yilesi isizathu esenza ukuba kule capacitors zisebenzisa ezahlukene isendlalelo Kwe-dielectric Heating -. Ceramics, mica, upharafini, njll Zonke lezi zinto, ukuba permeability ephakeme, ukwandisa ukubaluleka icala zanqwabelana amapuleti. Ngamanye amazwi, capacitance kungase kushintshwe hhayi kuphela endleleni indawo amapuleti, kodwa abahlukanise izithombe. Champions phakathi izinto nge permeability eziphakeme zingezezimbuzi zobumba (80) kanye manzi ahlanzekile amanyela (okungenani 81).