Cov qauv siv lub rooj: kev siv kom raug thiab siv cov iav ohm
1. Siv lub multimeter kom raug
Txhawm rau siv lub multimeter kom raug, koj yuav tsum paub lub xov tooj ua ntej siv nws. Ob tug xoom adjusters, tig xoom txoj hauj lwm me ntsis. Xaiv cov ntawv khi kom raug, thiab ntxig cov xim liab thiab xim dub coj mus rau hauv txoj cai qhov.
Tig lub hloov pauv mus xaiv lub iav kom raug. Tsim nyog xaiv ntawm cov ntaub ntawv ntau, ntsuas kev nyeem ntawv yog qhov tseeb. Saib ntawm cov kab scale kab, thiab kev nyeem ntawv ntsug yog qhov tseeb.
Tom qab kev ntsuas tiav lawm, hu rau tus cwj mem xeem thiab tig mus rau lub iav siab. Lub roj teeb hauv lub moos feem ntau raug kuaj xyuas, thiab qhov kev puas tsuaj yuav xau electrolyte. Cov cuab yeej khaws cia muaj ib puag ncig zoo, tsis muaj kev vibration, tsis ntub, thiab tsis muaj zog hlau nplaum.
2. Ua kom raug siv lub ohm iav ntawm multimeter
Txhawm rau siv ohm iav kom raug, koj yuav tsum paub tias yuav tsum muaj yim yam khoom. Lub roj teeb voltage yuav tsum muaj ntau, thiab lub Circuit Court nyob rau hauv kev sim yuav tsum tsis muaj voltage. Xaiv cov ntaub ntawv magnification tsim nyog, thiab rab koob taw qhia rau nruab nrab ntawm qhov ntsuas.
Txhua lub sij hawm lub magnification iav hloov, qhov tsis kam xoom yuav tsum tau rov kho dua. Lub taub ntawm tus cwj mem muaj kev sib cuag zoo nrog lub ntsuas ntsuas, thiab qhov kawg ntawm tus cwj mem ntsuas tsis kov tes. Ntsuas qhov on-off ntawm cov kab hluav taws xob, cov ntaub ntawv ntau tshaj 1000 ohms.
Judging diode Cheebtsam, sib txawv magnifications muaj sib txawv kuj. Ntsuas qhov winding ntawm lub transformer, yog tias koj kov nws, koj yuav hnov qhov loog.
3. Kev ceev faj thaum ntsuas qhov hluav taws xob nrog lub multimeter
Muaj yim qhov ceev faj rau ntsuas qhov voltage nrog lub multimeter. Paub qhov luaj li cas ntawm qhov tsis kam ntawm lub 'meter', thiab ib tug neeg yuav tsum saib xyuas nws. Lub ntsuas hluav taws xob hauv Circuit Court nyob rau hauv kev sim yog txuas nrog nyob rau hauv parallel, thiab qhov ntau yam tsis tuaj yeem hloov pauv thaum nws raug them.
Thaum ntsuas DC voltage, nrhiav qhov zoo thiab qhov tsis zoo ntawm lub voj voog. Ntsuas qhov voltage ntawm inductive reactance Circuit Court, thiab tsis txhob txiav tawm lub hwj chim mov thaum lub sij hawm. Txhawm rau kuaj kV high voltage, yuav tsum tau kuaj tshwj xeeb cov hlau lead.
Induced hluav taws xob-rau-hauv av voltage, qhov sib txawv ntawm qhov sib txawv yog qhov loj.
