Coefficient yo kwinjiza ya capacator yerekana iki?Nibitoya, nibyiza?

Mbere yo kumenyekanisha coeffisente yo kwinjiza ya capacitori ya firime, reka turebe icyo dielectric ari cyo, polarisiyasi ya dielectric hamwe nikintu cyo kwinjiza kanseri.

Amashanyarazi

Dielectric ni ibintu bidayobora, ni ukuvuga insuliranteri, idafite umuriro wimbere ushobora kugenda.Niba dielectric ishyizwe mumashanyarazi, electron na nuclei za atome ya dielectric ikora "microscopique relative deplacement" murwego rwa atome. munsi yibikorwa byingufu zamashanyarazi, ariko ntabwo "macroscopique traffic" kure ya atome barimo, nka electron yubusa mumashanyarazi.Iyo uburinganire bwa electrostatike bugeze, imbaraga zumurima imbere ya dielectric ntabwo ari zeru.Iri ni itandukaniro nyamukuru hagati yumuriro wamashanyarazi ya dielectrics nuyobora.

Umuyoboro wa dielectric

Mubikorwa byumuriro wamashanyarazi washyizweho, umwanya wa macroscopique dipole umwanya ugaragara imbere ya dielectric ugana icyerekezo cyumuriro wamashanyarazi, naho umupaka uhambiriye ugaragara hejuru ya dielectric, aribwo polarisiyasi ya dielectric.

Ikintu cyo kwinjiza

igihe cyo gutinda mugihe cyo kwishyuza no gusohora capacitori iterwa na polarisiyonike ya dielectric gahoro gahoro ikoresheje amashanyarazi yakoreshejwe.Ubwumvikane busanzwe nuko capacitor isabwa kwishyurwa byuzuye ako kanya, ariko ntabwo ihita yuzuzwa;capacitor isabwa kurekura burundu amafaranga, ariko ntabwo irekuwe, kandi igihe cyo gutinda kibaho.

Coefficient ya Absorption ya capacitor ya firime

Agaciro gakoreshwa mugusobanura dielectric absorption phenomenon ya capacator ya firime yitwa coefficient coefficient, kandi ivugwa na Ka.Ingaruka yo gukwirakwiza dielectric ya capacitori ya firime igena inshuro nke ziranga ubushobozi bwa capacator, kandi agaciro ka Ka karatandukanye cyane kumashanyarazi atandukanye.Ibisubizo byo gupima biratandukanye kubizamini bitandukanye byigihe kimwe;agaciro ka Ka karatandukanye kandi kubushobozi bwibisobanuro bimwe, ababikora batandukanye, nibice bitandukanye.

Hano hari ibibazo bibiri-

Q1.Ese coefficient ya absorption ya capacitori ya firime ni nto ishoboka?

Q2.Ni izihe ngaruka mbi ziterwa na coefficient nini yo kwinjiza?

A1:

Munsi yumurimo wumuriro wamashanyarazi washyizweho: ntoya Ka (coefficient de santé de porope) → intege nke za polarisiyasi ya dielectric (ni ukuvuga insulator) → hasi imbaraga zihuza hejuru ya dielectric → ntoya imbaraga zihuza za dielectric kumashanyarazi. Intege nke zo kwinjiza ibintu bya capacitor → capacitor yishyuza kandi ikarekura vuba.Intego nziza: Ka ni 0, ni ukuvuga ko coeffisente yo kwinjiza ari 0, dielectric (ni ukuvuga insulator) nta kintu na kimwe cya polarisiyasi ikorwa n'umuriro w'amashanyarazi washyizweho, ubuso bwa dielectric nta mbaraga zikurura imbaraga zishyuza, hamwe nubushobozi bwa capacitor hamwe nigisubizo cyo gusohora nta hystereze.Kubwibyo, coeffisente yo kwinjiza ya capacitor ya firime ni ntoya nziza.

A2:

Ingaruka ya capacitor ifite nini cyane Ka agaciro kumuzunguruko itandukanye irigaragaza muburyo butandukanye, nkibi bikurikira.

1) Inzira zinyuranye zihinduka imirongo ifatanye

2) Umuzunguruko wa Sawtooth utanga umusaruro mwinshi wo kugaruka kumuraba, bityo umuzenguruko ntushobora gukira vuba

3) Imipaka, clamps, impiswi zifatika zisohoka zigoreka

4) Igihe gihoraho cya ultra-low frequency yoroshye kayungurura iba nini

(5) DC amplifier zeru ihungabana, inzira imwe

6） Ukuri kwicyitegererezo no gufata umuzenguruko bigabanuka

7) Gutwara DC ikora ya point ya amplifier

8) Kwiyongera kwinyeganyeza mumashanyarazi

Imikorere yose yavuzwe haruguru yingaruka zo gukurura dielectric ntishobora gutandukana ningingo ya "inertia" ya capacitor, ni ukuvuga mugihe cyagenwe kwishyurwa ntabwo byishyurwa agaciro kateganijwe, naho ubundi gusohora nabyo ni ko bimeze.

Kurwanya insulasiyo (cyangwa kumeneka) ya capacitor ifite agaciro kanini ka Ka itandukanye nubwa capacitori nziza (Ka = 0) kuko yiyongera hamwe nigihe kinini cyo kugerageza (imyuka igabanuka).Igihe cyibizamini cyerekanwe mubushinwa ni umunota umwe.