Yuav ua li cas txheeb xyuas qhov txuas ntxiv ntawm cov xov hlau nyob nrog lub multimeter
Hauv hluav taws xob engineering thiab hluav taws xob tsav, hluav taws xob tau muab faib ua hluav taws xob tsis muaj zog, hluav taws xob muaj zog, tsis muaj hluav taws xob, hluav taws xob siab, thiab ultra-high voltage. Tab sis muaj qhov muaj zog thiab txawm tias muaj hluav taws xob siab hauv cov hluav taws xob tsis muaj zog, xws li TV, hloov cov khoom siv hluav taws xob, cov khoom siv hluav taws xob LED, xws li los ntawm ob peb volts mus txog 10000 volts. Muaj qhov tsis tshua muaj hluav taws xob thiab tsis muaj hluav taws xob nyob hauv qhov hluav taws xob siab, vim tias qhov kev tswj hwm kev tswj hwm ob qho tib si tsis tshua muaj hluav taws xob thiab qhov hluav taws xob siab, thiab cov hluav taws xob tsis muaj zog tswj cov hluav taws xob tsawg rau kev ua haujlwm ruaj ntseg.
Kuv tsis pom zoo siv lub multimeter nkaus xwb los ntsuas qhov txuas ntxiv ntawm cov kab hluav taws xob nyob! Koj tuaj yeem siv lub ntsuas hluav taws xob los ntsuas qhov muaj lossis tsis muaj hluav taws xob, lossis koj tuaj yeem siv lub ohm hloov los ntsuas qhov xwm txheej ntawm lub voj voog tom qab lub hwj chim raug kaw.
Cov tshuab hluav taws xob yog ib qho kev lag luam uas muaj kev pheej hmoo siab uas qee zaum yuav tsum tau ntsuas cov ntaub ntawv. Yog tsis muaj hluav taws xob, nws tsis tuaj yeem ntsuas cov ntaub ntawv tiag tiag xws li voltage thiab tam sim no. Thiab waveform daim duab. Kev ntsuas nyob kuj yog ua haujlwm nyob. Txawm hais tias muaj cov cuab yeej tiv thaiv tus kheej, cov hnab looj tes insulated, thiab cov khau insulated, nws yog qhov tsis yooj yim rau tus txiv neej coj mus ua haujlwm nrog nws. Cov phooj ywg, cia peb tham txog kev ua haujlwm nyuaj npaum li cas!
Yuav ua li cas siv lub multimeter, koj tuaj yeem xa mus rau phau ntawv thiab mus rau Baidu. Txhua tus tau teb zoo heev, yog li kuv yuav tsis rov hais dua. Qhov kuv xav qhia yog yuav ua li cas siv lub multimeter kom nyab xeeb dua rau kev ntsuas kev ceev faj.
1, Nyob ntsuas hluav taws xob tsis muaj zog
Thaum ntsuas, tsis txhob blindly ntsuas ua ntej. Tshawb xyuas cov hluav taws xob tsis muaj zog thiab muaj zog hauv Circuit Court, xaiv cov iav tsim nyog, thiab ntsuas qhov hluav taws xob hauv qab DC thiab AC24V. Yeej tsis muaj kev phom sij, tab sis tsis txhob kov lub zog hluav taws xob, qhov hluav taws xob siab hauv cov khoom siv, thiab cov capacitors loj.
Txoj hauv kev zoo tshaj plaws los ntsuas qhov hluav taws xob siab hauv cov khoom siv hluav taws xob tsawg yog thawj zaug tua hluav taws xob, tso tawm (suav nrog cov capacitors), tom qab ntawd xaiv cov iav tsim nyog rau kev sojntsuam, tso qhov ntsuas ntsuas, thiab tom qab ntawd muab lub zog los nyeem cov ntaub ntawv ntsuas. Digital multimeter pluaj muaj lub cim xeeb khawm, uas tuaj yeem nias kom ruaj ntseg.
Thaum ntsuas qhov hluav taws xob nrog multimeter hauv lub Hoobkas, muaj qhov hluav taws xob tsis tas txhais tau hais tias lub voj voog txuas nrog, thiab tsis muaj qhov hluav taws xob, qhov Circuit Court tsis txuas nrog.
Vim qhov kev ntsuas nyob, muaj cov transformers thiab motors nyob rau hauv Circuit Court, thiab muaj hluav taws xob rau thiab tawm ntawm qhov chaw so. Cov hluav taws xob ntawm qhov chaw tawg yog lub zog hluav taws xob, thiab hluav taws xob hauv qab ntawm qhov tawg yog lwm qhov hluav taws xob uas dhau los ntawm winding lossis coil hauv series. Nws yog ib qho tseem ceeb uas yuav tau xyuam xim rau qhov tshwm sim no. Yog li siv multimeter los ntsuas qhov txuas ntxiv ntawm lub voj voog nyob yog qhov tsis raug! Rau lub zog loj, nws yuav tsum yog lub zog ib theem. Yog tias cov xaim nyob tau raug txiav tawm, yuav tsis muaj lub zog hluav taws xob, tab sis yog tias cov xaim nruab nrab raug txiav, qhov tshwm sim ntawm kev muaj hwj chim tab sis tsis muaj hluav taws xob yuav raug kuaj pom.
Hauv cov ntsiab lus, nws yog qhov tseeb uas siv multimeter los ntsuas qhov txuas ntxiv ntawm lub voj voog thaum nws tseem siv. Txoj kev zoo tshaj plaws yog txiav tawm lub hwj chim thiab siv lub ohmmeter los yog lub rooj tuav los ntsuas qhov txuas ntxiv ntawm lub voj voog kom raug.
