Cov lus qhia rau kev siv lub tshuab multimeter kom sai sai pom cov pa hauv cov khoom siv hluav taws xob
Cov lus qhia ntawm kev siv multimeter kom pom sai sai hauv cov khoom siv hluav taws xob
Raws li peb txhua tus paub, kev xau ntawm cov khoom siv hluav taws xob tuaj yeem tshwm sim txhua lub sijhawm. Yuav ua li cas txhawm rau txhawm rau lub sijhawm? Nov yog qee txoj hauv kev yooj yim. Tej zaum koj yuav xav muab nws sim.
Ua ntej, siv lub multimeter los ntsuas qhov hluav taws xob to. Muab lub multimeter hloov ntawm AC voltage ntsuas ntau, feem ntau AC voltage 250V ntau. Tom qab ntawd ntxig cov hlau lead dub rau hauv av nyob ze ntawm cov khoom siv ntsuas, thiab txuas cov kev ntsuam xyuas liab rau cov hlau ntawm cov khoom siv. ntawm lub plhaub. Lub sijhawm no, saib cov lus qhia ntawm multimeter. Yog tias rab koob ntawm lub 'meter' tsis txav mus, koj tuaj yeem tig nws mus rau qis iav hauv ib ntu kom txog rau thaum cov ntaub ntawv tshwj xeeb tau qhia, uas yog qhov xau hluav taws xob ntawm lub cuab yeej. Yog tias tseem tsis muaj qhov qhia tau tias thaum qhov kev xeem coj mus rau qhov chaw qis tshaj plaws, nws txhais tau tias tsis muaj hluav taws xob tawm hauv lub cuab yeej.
Qhov thib ob, siv tus cwj mem xeem los kuaj xyuas qhov xau. Tus kws tshuaj xyuas tuav lub ntsuas hluav taws xob thiab txuas ncaj qha mus rau lub plhaub hlau ntawm cov khoom siv hluav taws xob. Thaum lub raj neon nyob rau hauv lub tshuab hluav taws xob ntsuas hluav taws xob teeb, nws txhais tau hais tias cov cuab yeej muaj cov xau thiab qhov hluav taws xob xau siab. Thaum lub raj neon tsis teeb, nws tsis txhais hais tias cov khoom siv tsis muaj qhov to. Tej zaum nws yuav yog qhov hluav taws xob xau qis thiab lub raj neon tsis tuaj yeem teeb, lossis tej zaum yuav tsis muaj hluav taws xob to.
Thib peb, yog tias koj tsis muaj lub tshuab ntsuas ntau lossis ntsuas ntsuas, koj tuaj yeem kov cov hlau casing ntawm cov khoom siv hluav taws xob nrog sab nraub qaum ntawm koj txhais tes. Thaum koj hnov loog lossis hluav taws xob poob ntawm koj txhais tes, nws txhais tau hais tias cov cuab yeej muaj hluav taws xob to. Koj yuav tsum tau ceev faj ntau dua thaum koj hnov mob hluav taws xob, uas txhais tau hais tias qhov hluav taws xob xau yog qhov siab. Nws yog ib qho tsim nyog yuav tsum nres lub tshuab los xyuas thiab txheeb xyuas qhov ua rau, thiab tom qab ntawd siv nws tom qab kev daws teeb meem, txwv tsis pub muaj kev sib tsoo hluav taws xob yuav tshwm sim.
