Npav capacitors - yuav ua li cas?

Txhua txhua xyoo ntau thiab ntau nyob rau hauv lub domestic kev lag luam ntawm lub capacitors yuav pom tsis tau tsuas yog nyob rau hauv Russia, tab sis kuj mas. Thiab ntau muaj teeb meem loj nyob rau hauv deciphering cov ntawv. Yuav ua li cas yuav paub tseeb? Tseeb, nyob rau hauv cov ntaub ntawv ntawm ib qho yuam kev, thiab tus ntaus ntawv yuav tau khwv tsis tau.

Yuav pib, peb nco ntsoov tias lub npav ntawm capacitors ua nyob rau hauv kev txiav txim no:

1. Nyob peev xwm uas yuav siv cim cim muaj lub xaus-npawb tsab (feem ntau peb mus rau plaub), thiab cov tsiaj ntawv, nyob qhov twg lub tsab ntawv qhia tus zauv point, thiab cim (uf, NF, pf).
2. Lub permissible txawv los ntawm cov nominal peev xwm (siv thiab yog pom tias muaj tsawg, nyob ntawm seb tus yam ntxwv thiab cov lo lus uas ntaus ntawv).
3. Permissible nyob voltage (txwv tsis pub nws yog hu ua tus permissible kev khiav hauj lwm voltage) - yog ib qhov tseem ceeb parameter, tshwj xeeb tshaj yog thaum uas siv nyob rau hauv high-voltage circuits).

Cov npav ntawm tej hub capacitors ntawm nyob muaj peev xwm

Tej hub los yog tas mus li capacitors yog cov feem ntau nrov. Feem ntau, capacitance los yuav muaj nyob rau hauv lub cev tsis muaj ib tug kev zoo tshaj.

1. Qhia txog lub capacitors ntawm peb tug lej tom qab, cov thawj ob qhia qhov chaw uas tus mantissa thiab rau tom kawg raws li yog tus nqi nyob hauv lub txoos 10 yuav tau txais cov denomination nyob rau hauv picofarads, i.e. qhia tus xov tooj ntawm zeros rau lub capacitor nyob rau hauv pikafararadah. Piv txwv li: 472 yuav yog ib tug 4700 PF (es tsis txhob ntawm 472 PF).

2. Npav capacitors ntawm plaub tug lej tom qab - ib tug system zoo xws li cov yav dhau los, tab sis nyob rau hauv rooj plaub no tus thawj peb tug lej tom qab qhia cov mantissa, thiab lub xeem yog tus nqi ntawm lub hauv paus li 10 mus rau tau txais lub ntsej muag tus nqi nyob rau hauv picofarads. Piv txwv li: 2344 = 234 * 10 ² PF = 23400 PF = 23,4 NF;

3. Mixed labeling los yog npav nrog cov zauv thiab cov tsiaj ntawv. Nyob rau hauv cov ntaub ntawv no tsab ntawv qhia mus rau lub yam khoom (uf, NF, pf), raws li zoo raws li ib tug zauv point, thiab cov nuj nqis - tus nqi ntawm cov capacitance siv. Piv txwv li: 28P = 28 PF 3n3 = 3.3 NF. Muaj tej lub sij hawm thaum ib tug zauv point denoted los ntawm tsab ntawv R.

Npav lub parameter permissible kev khiav hauj lwm voltage yog feem ntau siv nyob rau hauv electronics los ua ke, tau nrog nws tus kheej txhais tes. Hais tias yog, tus kho ntawm fluorescent teeb yuav tsis yuav tsis muaj ib tug xaiv ntawm ib tug haum voltage ntawm ua tsis tau tejyam capacitors. Nyob rau hauv xws li ib tug cov ntaub ntawv, qhov no parameter yuav qhia tom qab lub deflection thiab nominal muaj peev xwm.

Cov no yog cov yooj yim tsis siv thaum npav yog nqa capacitors. Lawv yuav tsum paub tias thaum twg koj xaiv qhov kev tsim nyog ntaus ntawv. Labeling ntawm mas capacitors muaj lawv sib txawv, tab sis ntau nyob rau hauv txoj kab nrog peb teev nyob rau hauv no tsab xov xwm.

Kom xaiv capacitor yuav pab tau koj thaum koj tsim koj tus kheej kiag li lawm, raws li tau zoo raws li pab txhawb kom kho lub uas twb muaj lawm sawv daws yuav. Qhov loj tshaj plaws kom koj nco ntsoov hais tias ib tug zoo cov khoom yuav tsuas yuav los ntawm lub manufacturers uas tau muaj pov thawj lawv muaj nqis nyob rau hauv qhov hluav taws xob ua lag luam. Thiab rau qhov zoo ntawm cov khoom zoo - saum toj no tag nrho lwm yam. Tom qab tag nrho, vim muaj ib tug malfunction ntawm lub capacitor yuav tawg kim kim feem ntawm cov khoom los yog ntaus ntawv. Tsis tas li ntawd, lawv muaj peev xwm nyob ntawm seb koj muaj kev ruaj ntseg.