Kev ceev faj rau kev ntsuas kev tiv thaiv nrog lub multimeter
Kev ceev faj thaum siv multimeter los ntsuas qhov tseem ceeb ntawm kev tiv thaiv:
Muaj ob hom multimeter: ib txwm multimeter thiab digital multimeter. Traditional multimeter yog pointer electromagnetic deflection hom, uas yuav tsum tau kho txhua yam xoom hloov ua ntej siv. Nws yog cumbersome siv thiab kev nyeem ntawv nyeem ntawv yog subjective thiab tsis raug, thiab tam sim no tsis tshua siv.
Cov multimeter digital tuaj yeem tso saib cov lej ncaj qha yam tsis tas yuav tsum tau soj ntsuam qhov ntsuas rau kev nyeem ntawv, ua rau cov txiaj ntsig raug ntau dua. Tam sim no nws yog hom tseem ceeb ntawm multimeter siv.
Kev ceev faj rau kev ntsuas qhov tsis kam nrog multimeter:
1. Ua ntej siv multimeter, nws yog ib qho tsim nyog yuav tsum tau ua "kev hloov kho xoom xoom", uas txhais tau hais tias thaum tsis muaj hluav taws xob ntsuas, lub ntsuas ntsuas multimeter yuav tsum tau muab tso rau ntawm xoom voltage lossis xoom tam sim no.
2. Thaum lub sij hawm siv multimeter, tsis txhob kov cov hlau ntawm qhov kev sojntsuam nrog koj txhais tes. Qhov no ua kom qhov ntsuas qhov tseeb thiab kev nyab xeeb ntawm tus kheej.
3. Thaum ntsuas qee qhov hluav taws xob, nws tsis pom zoo kom hloov cov iav ib txhij, tshwj xeeb tshaj yog thaum ntsuas qhov hluav taws xob siab lossis siab tam sim no. Txwv tsis pub, nws yuav ua rau muaj kev puas tsuaj rau lub multimeter. Yog tias koj xav tau hloov cov iav, koj yuav tsum xub txiav qhov kev sojntsuam thiab hloov cov iav ua ntej ntsuas.
4. Thaum siv multimeter, nws yuav tsum tau muab tso rau kab rov tav kom tsis txhob ua yuam kev. Nyob rau tib lub sijhawm, kev saib xyuas yuav tsum tau them nyiaj kom tsis txhob muaj kev cuam tshuam ntawm sab nraud magnetic teb ntawm multimeter.
5. Tom qab siv lub multimeter, qhov hloov pauv yuav tsum tau muab tso rau ntawm qhov siab tshaj plaws AC voltage txoj hauj lwm. Yog tias tsis siv sijhawm ntev, lub roj teeb hauv lub tshuab hluav taws xob yuav tsum tau muab tshem tawm los tiv thaiv lub roj teeb los ntawm corroding lwm yam khoom hauv lub ntsuas.
Multimeter yog ib qho cuab yeej siv ntau yam thiab ntau yam kev ntsuas uas tuaj yeem siv tsis tau tsuas yog ntsuas qhov tsis kam ntawm cov khoom ntsuas, tab sis kuj ntsuas DC voltage. Raws li cov cuab yeej ntsuas tseem ceeb hauv kev lag luam, nws yog ib qho tseem ceeb kom paub txog cov ntsiab lus uas yuav tsum tau them sai sai rau thaum ntsuas txhawm rau ua kom nws lub luag haujlwm zoo dua.
