Lub hauv paus ntsiab lus ntawm Kev Ntsuas Fusing Resistors nrog Multimeter
Cov tsis tseem ceeb ntawm fuse resistor muaj xws li nominal tsis kam, ntsuas lub zog, tso cai sib txawv, thiab lwm yam. Lub tswv yim ntawm txhua qhov kev ntsuas yog qhov tseem ceeb zoo ib yam li cov xim nplhaib resistor. Feem ntau, tsuas yog nws tus nqi nominal tsis kam yog qhia rau ntawm lub fuse resistor, thiab lwm yam tsis tau sawv cev. Cov nominal kuj tseem ceeb yog sawv cev los ntawm cov xim rings, thiab lawv cov kev sawv cev tshwj xeeb yog zoo ib yam li cov xim zoo tib yam nplhaib resistors. Tab sis muaj qhov sib txawv nyob ntawm qhov chaw ntawm keeb kwm, qee qhov muaj plaub lub nplhaib xim, thaum lwm tus tsuas muaj ib lub nplhaib xim. Rau lub fuse resistor nrog plaub lub nplhaib xim, nws txoj kev nyeem ntawv tuaj yeem ua raws li txoj cai ntawm lub nplhaib xim zoo tib yam. Lub nplhaib thib ib thiab thib ob sawv cev rau thawj ob tus lej ntawm tus nqi tiv thaiv, lub nplhaib thib peb sawv cev rau qhov sib npaug, thiab lub nplhaib thib plaub sawv cev rau qhov yuam kev. Rau lub fuse resistor nrog tsuas yog ib lub nplhaib xim, cov xim ntawm lub nplhaib xim sawv cev rau qhov sib txawv ntawm qhov sib txawv. Piv txwv li, dub sawv cev rau 10Q, liab sawv cev 2.2Q, thiab dawb sawv cev rau 1Q.
Kab lus no feem ntau tham txog ob hom kev tshawb nrhiav rau fuse resistors, ib qho yog qhib Circuit Court thiab lwm yam yog nyob rau hauv Circuit Court. Hauv qab no yog cov lus qhia ntxaws:
1. Qhib Circuit Court nrhiav pom ntawm fuse resistors siv multimeter
Txoj kev qhib hluav taws xob tshawb pom ntawm lub fuse resistor siv multimeter yog qhia hauv daim duab. Ntsuas qhov tsis kam ntawm ob tus pins ntawm multimeter siv lub ohm ntau. Tus nqi kuj ntsuas thaum lub fuse resistor tshuab yuav tsum yog infinite. Yog hais tias tus nqi kuj ntawm qhov ntsuas fuse resistor yog ntau dua li nws tus nqi kuj nominal, nws qhia tau hais tias qhov ntsuas fuse resistor tau hloov tus nqi thiab puas lawm. Feem ntau hais lus, fuse resistors tsis muaj kev cuam tshuam luv luv.
2. Nyob rau hauv Circuit Court nrhiav tau ntawm fuse resistors siv ib tug multimeter
Nyob rau hauv ib lub voj voog, thaum lub fuse resistor qhib, kev txiav txim tuaj yeem ua raws li kev paub dhau los. Yog hais tias qhov saum npoo ntawm lub fuse resistor pom tias yog blackened los yog burnt, nws yuav xaus lus tias nws load hnyav heev, uas yog tshwm sim los ntawm tam sim no dhau los ntawm nws tshaj tus nqi ntsuas los ntawm ntau zaus; Yog tias tsis muaj kab nyob rau ntawm nws qhov chaw thiab nws qhib, nws qhia tau hais tias qhov ntws tam sim no yog sib npaug los yog me ntsis ntau dua li nws cov nqi melting. Rau qhov kev txiav txim siab ntawm qhov zoo ntawm lub fuse resistor yam tsis muaj kab nyob rau saum npoo, Circuit Court tuaj yeem siv tau, thiab tom qab ntawd DC voltage ntawm ob kawg ntawm fuse resistor rau hauv av tuaj yeem ntsuas nrog kev pab los ntawm multimeter voltage ntau. Thaum ntsuas qhov ntsuas hluav taws xob ntawm ib kawg yog 0V thiab qhov hluav taws xob ntawm qhov kawg yog qhov qub, nws txhais tau hais tias tus resistor tau qhib. Thaum kuaj txoj kev, qhov kev tiv thaiv ntawm cov resistor kuj tuaj yeem ntsuas tau siv lub multimeter nrog R * 1 Ω ntau. Txoj kev kuaj tshwj xeeb yog qhia hauv daim duab. Yuav kom ntsuas qhov tseeb, ib qho kawg ntawm fuse resistor yuav tsum tau muab tshem tawm ntawm lub voj voog. Yog tias qhov ntsuas qhov ntsuas tsis muaj qhov kawg, nws qhia tau tias lub fuse resistor tau ua tsis tiav thiab qhib; Yog tias qhov ntsuas qhov ntsuas tsis zoo sib txawv ntawm tus nqi nominal tsis kam, nws qhia tias qhov kev hloov pauv ntawm tus nqi tsis kam thiab yuav tsum tsis txhob siv dua. Hauv kev xyaum ua haujlwm, nws tau pom tias kuj tseem muaj qee qhov xwm txheej ntawm fuse resistors tawg thiab luv luv hauv Circuit Court, uas yuav tsum tau coj mus rau hauv tus account thaum kuaj.
