Ceramics yog dab tsi? Nyob rau hauv lub neej txhua hnub, qhov no yog lub npe rau cov khoom tsim los ntawm firing ib pawg, mas av nplaum. Hauv kev siv thev naus laus zis, cov ntaub ntawv ceramic tau nkag siab tias txhais tau tias cov khoom siv nrog cov qauv zoo sib xws, txawm tias lawv tsis muaj av nplaum, lossis nws muaj nyob rau hauv me me. Cov no suav nrog capacitor ceramics siv los ua dielectric hauv capacitor.
Ceramic capacitor
Cov khoom no yog cov yam ntxwv ntawm kev ua haujlwm hluav taws xob siab, me me thiab tus nqi qis. Ceramic capacitors yog dav siv nyob rau hauv circuits ntawm cov khoom siv xov tooj cua. Lawv tuaj nrog lub peev xwm ruaj khov thiab trimmers.
Hom ntawm cov khoom ntim ruaj khov
Thermostable ceramic capacitors yog siv rau hauv kev ruaj ntseg oscillator thiab hauv zos oscillator circuits. Thermal compensating ntsiab yog siv los kho qhov kub thiab txias. Ib pab pawg tshwj xeeb muaj cov ferro-ceramic capacitors, uas ferro-ceramic yog siv los ua dielectric - cov khoom uas muaj dielectric siab tas li (txog li ob peb txhiab) hauvtej yam kub thiab txias. Cov khoom lag luam hais txawv ntawm cov khoom siv hluav taws xob ntau zaus hauv lawv cov peev txheej siab dua ntawm tib qhov ntev.
Ceramic tubular condenser (CT-1, CT-2) yog lub raj nyias nyias, cov txheej sab nrauv thiab sab hauv uas yog coated nrog ib txheej nyiaj.
Ceramic disk capacitor (KD1, KD2) thiab disk ferro-ceramic qauv (KDS1, KDS2, KDS3) yog ib puag ncig ceramic phaj nrog ib txheej hauv cov txheej nyias ntawm cov nyiaj.
Ceramic molded yas chim caij (KOB1, KOB2, KOB3) yog lub tog raj kheej ceramic, ntawm lub hauv paus ntawm cov ntaub ntawv tseem siv tau.
Xim nplai thiab nws lub ntsiab lus
Ntau xim nyob rau hauv cov khoom ntawm KT, KDS, KD, thiab lwm yam yog pleev xim rau, qhia qhov ruaj khov ntawm lawv lub peev xwm thaum kub hloov. Cov xim xiav, xiav thiab grey yog siv yog tias lub capacitance ntawm lub capacitor reacts insignificantly rau qhov kub thiab txias. Cov ntsiab lus no hu ua thermostable. Cov xim liab thiab ntsuab txhais tau hais tias thaum qhov kub thiab txias nce, lub peev xwm ntawm cov khoom yuav pom zoo txo qis - cov no yog cov thermocompensating capacitors. Cov xim txiv kab ntxwv qhia tau hais tias nyob rau hauv qhov kev tshwm sim ntawm qhov kev hloov ntawm qhov kub thiab txias ntau, lub peev xwm ntawm cov khoom yuav hloov heev (txawm li cas los xij, nyob rau hauv chav tsev kub, lub peev xwm tseem ruaj khov).
Hom ceramic trimmer capacitors
Cov khoom no yog tsim kom haum (haum)parameters ntawm oscillatory circuits, lawv kuj hu ua semi-variables. Cia peb saib ib qho luv luv.
Ceramic tuning capacitor (CPC) muaj lub hauv paus ceramic (stator) thiab ceramic movable disk (rotor). Lub disk ntawm lub qag yog txuas nrog lub stator thiab tuaj yeem tig nrog lub hau ntswj. Sector-shaped silver plates yog siv rau ntawm cov dav hlau ntawm ob qho tib si. Cov khoom siv rotor yog dielectric. Thaum lub sij hawm tig, tus txheeb ze txoj hauj lwm ntawm daim hlau hloov, feem, thiab lub capacitance ntawm lawv.
Tubular ceramic tuning capacitor (KPT) - lub npe nws tus kheej qhia tias cov khoom hauv nqe lus nug muaj daim ntawv ntawm lub raj. Nws sab hauv kuj yog coated nrog ib tug nyias nyiaj ruaj hauv ob sab phlu - ib tug hlau pas nrig nrog ib tug ntsia hlau xov. Thaum tig (ua tiav nrog lub hau ntswj), lub peev xwm hloov pauv los ntawm kev ntxig lossis tshem tus pas nrig ntawm lub raj.
Muaj peev xwm ntawm ceramic capacitors
Txawm tias 10-20 xyoo dhau los, vim muaj teeb meem cuam tshuam nrog kev tsim cov khoom siv hluav taws xob tau hais, cov khoom tau muab faib ua cov khoom siv me me. Tsis ntev los no, 1 uF ceramic capacitor yuav tsis xav tsis thoob rau leej twg, tab sis 10 uF lub ntsiab tau pom tias txawv.
Tab sis hnub no, kev txhim kho thev naus laus zis tau tso cai rau qee lub tuam txhab ntawm cov khoom siv hauv xov tooj cua tshaj tawm tias lawv tau mus txog qhov txwv tsis pub muaj peev xwm ntawm cov capacitors li 100 microfarads, tab sis, raws li lawv paub tseeb, qhov no tsis yog qhov txwv.
