Yog vim li cas ib tug multimeter qhia infinite kuj thaum ntsuas tsib-xim nplhaib resistor?
Siv lub multimeter los ntsuas tsib-xim nplhaib kuj. Tus nqi tso tawm kuj yog infinite. Cov laj thawj tshwm sim yog raws li nram no:
1. Qhov kev tiv thaiv yog qhov ua haujlwm siab ntawm kaum ntawm MΩ lossis ntau dua. Ib qho digital multimeter tuaj yeem ntsuas qhov tsis kam qis dua 20MΩ. Yog tias qhov ntsuas tsis kam tshaj qhov ntsuas qhov siab tshaj plaws ntawm multimeter, lub multimeter yuav tso saib "1" (piv txwv li, dhau lawm). Koj tuaj yeem tshawb xyuas thawj zaug seb lub nplhaib plaub xim ntawm tus resistor yog ntsuab lossis xiav kom paub meej tias tus resistor puas yog cov resistor siab.
2. Yog hais tias cov zaj duab xis conductive ntawm lub resistor raug ntsuas yog qhib-circuited thiab puas, tus nqi kuj yuav tsis raug ntsuas, thiab tej zaum cov displayed kuj nqi yuav infinite.
Cov xim nplhaib resistor yog tsim los ntawm cov yeeb yaj kiab uas txuas nrog lub plooj (porcelain core), coated nrog cov xim zaj duab xis, thiab luam tawm nrog lub nplhaib xim. Yog hais tias cov zaj duab xis conductive ntawm lub cev resistor ntog los yog kub hnyiab tawm vim tam sim no siab, ces siv ib tug multimeter los ntsuas qhov tsis kam. Tus nqi yuav infinite.
Tsis tas li ntawd, yog tias qhov kev sib txuas ntawm ob tus pins ntawm tus resistor thiab cov yeeb yaj kiab conductive ntawm lub cev resistor yog tawg thiab txiav tawm, qhov kev tiv thaiv tus nqi kuj tseem tsis kawg. Thaum ob qhov xwm txheej no tshwm sim, tus resistor siv tsis tau.
Yog hais tias qhov tseeb tsis kam ntawm ib tug resistor ntsuas nrog ib tug multimeter yog infinite, koj yuav xub paub meej tias nws yog ib tug high-resistance resistor. Yog hais tias nws tsis yog ib tug high-resistance resistor, koj yuav tsum tau xyuas seb lub resistor lub cev yog blackened los yog seb qhov kev twb kev txuas ntawm tus pin thiab lub resistor lub cev yog xoob. Rau qee cov resistors, ntau dhau tam sim no los yog txhua yam cuam tshuam yuav ua rau lub resistor qhib Circuit Court thiab puas.
Yuav ua li cas txheeb xyuas tsib-xim nplhaib resistors
Ntawm cov xim nplhaib resistor, cov xim sib txawv ntawm cov xim sib txawv yog siv los sawv cev rau kev sib cais ntawm cov xim nplhaib, feem ntau: xim av 1 liab 2 txiv kab ntxwv 3 daj 4 ntsuab 5 xiav 6 ntshav 7 grey 8 dawb 9 dub 0, kub thiab nyiaj sawv cev ua yuam kev.
Xim nplhaib resistors yog ib hom kev siv dav hauv cov khoom siv hluav taws xob ntau. Tsis muaj teeb meem li cas cov xim nplhaib resistor raug teeb tsa, kev saib xyuas thiab kho cov neeg ua haujlwm tau sai thiab raug nyeem nws cov nqi tiv thaiv, ua rau nws yooj yim los kuaj thiab hloov.
