Yuav ua li cas siv ib lub 'meter' los ntsuas seb lub Circuit Court yog grounded nrog cov ntaub ntawv tiv thaiv
Yuav ua li cas siv ib tug multimeter los ntsuas seb lub Circuit Court yog grounded nrog ib tug tiv thaiv iav. Ua ntej, tsis hais txog kev ntsuas kab lossis khoom siv, koj yuav tsum xub ntsuas qhov ntsuas hluav taws xob kom ntseeg tau tias nws muaj kev nyab xeeb thiab tsis muaj hluav taws xob, thiab tom qab ntawd ua lwm yam kev ntsuas. Yog hais tias nws yog ib tug capacitor los yog ib tug ntaus ntawv nrog capacitive reactance, koj yuav tsum xub tso nws, thiab ces paub meej tias nws muaj kev ruaj ntseg thiab tsis muaj voltage; tom qab ntawd kho cov iav ntawm multimeter rau 2000 megohms. Feem ntau, cov khoom tiv thaiv xau ntau dua 0.5 megohm thiab 30 mA yuav tsis tawm mus rau kev tiv thaiv, yog li nws feem ntau xav tias cov kab lossis cov khoom siv tsis yog hauv av. Tab sis nws kuj nyob ntawm qhov ua haujlwm voltage ntawm cov khoom siv lossis kab lossis ntau yam kev xav tau.
Nyob rau hauv lub neej niaj hnub, raws li rau ntau yam ntawm circuits, kuv tsis paub hais tias Circuit Court uas koj xa mus. Muaj cov hluav taws xob hluav taws xob, hluav taws xob nyiaj hluav taws xob rau kev xa hluav taws xob, thiab lub cev muaj zog. Cia peb coj peb lub voj voog uas feem ntau siv los ua piv txwv los tham txog kev siv lub multimeter los ntsuas seb nws puas yog av.
1. Electronic Circuit Court, nyob rau hauv ib txwm muaj xwm txheej, ntsuas hluav taws xob Circuit Court xaiv universal
Lub iav ntawm lub 'meter' yog qhov siab tshaj plaws ntawm 10k iav. Nyob rau lub sijhawm no, qhov ntsuas ntsuas tus nqi yuav luag ze rau 10K. Lub pointer txav me ntsis, thiab tom qab ntawd cov kev xeem coj tau thim rov qab rau kev ntsuas. Qee qhov kev kuaj hluav taws xob yuav txawv tom qab raug thim rov qab. Yog li ntawd, nws feem ntau ua rau tib neeg xav loog. Hom Circuit Court no tsis tuaj yeem ntsuas nrog lub shaker, uas yuav ua rau cov khoom siv hluav taws xob puas.
2. Voltage kis tau tus mob Circuit Court, coj lub tsev teeb pom kev zoo Circuit Court ua piv txwv. Ua ntej ntsuas, thawj zaug tua lub hwj chim hloov, thiab tib lub sijhawm tua cov keyboards ntawm tag nrho cov khoom siv hluav taws xob, thiab tom qab ntawd ntsuas qhov xwm txheej hauv av. Yog hais tias ib tug multimeter yog siv los thaiv qhov tsis kam ntawm Circuit Court rau hauv av, qhov kev tiv thaiv ntawm cov hlau nyob thiab cov kab nruab nrab yuav tsum yog infinite. Yog tias koj xav hu nws lub shaker), qhov ntsuas ntsuas tus nqi yuav tsum siab dua 0.5 megohms kom paub meej tias lub voj voog tsis xau.
3. Kev ntsuas ntawm lub tshuab hluav taws xob mus rau hauv av tsis tuaj yeem ua tau nrog multimeter. Nws kuj tseem yuav tsum tau siv lub ntsuas 500-volt megohmmeter. Qhov kev tiv thaiv ntawm lub kauj voj voog mus rau hauv av yuav tsum siab dua 0.5 megohm, uas yog suav tias yog kev nyab xeeb. Yog hais tias nws yog ib tug tshiab qhov txhab lub cev muaj zog coil, qhov kev tiv thaiv rau hauv av yuav tsum siab tshaj 10 megohm. Yog li ntawd, txhua lub voj voog muaj cov kev xav tau sib txawv rau qhov kev tiv thaiv tus nqi hauv av, thiab qhov hluav taws xob siab yuav tsum muaj cov nqi rwb thaiv tsev loj rau hauv av.
