Yuav ua li cas koj yuav tsum xaiv ib tug digital multimeter?
Multimeter yog ib tug multifunctional, ntau yam txhua yam ntsuas ntsuas ntsuas muaj li ntawm ib tug ntsuas mechanism ntawm ib tug magneto fais meter thiab ib tug rectifier. Nws tuaj yeem siv los ntsuas AC thiab DC voltage, AC thiab DC tam sim no, thiab tsis kam.
Kuj tseem hu ua multimeter lossis multimeter. Ib co multimeters kuj muaj nuj nqi xws li ntsuas capacitance, inductance, thiab lwm yam. Lub multimeter feem ntau yog tsim los ntawm kev ntsuas mechanism, ntsuas Circuit Court, thiab hloov pauv ntawm lub ntsuas hluav taws xob magneto.
Ntawm lawv, qhov hloov pauv hloov pauv yog qhov hloov pauv siv los ntawm multimeters los xaiv cov kev ntsuas sib txawv thiab ntau yam.
Digital multimeters tau siv dav hauv kev ua haujlwm xws li kev tiv thaiv hauv tebchaws, kev tshawb fawb tshawb fawb, chaw tsim khoom, tsev kawm ntawv, thiab ntsuas ntsuas ntsuas vim lawv qhov tseeb siab, ntsuas qhov dav, ntsuas ntsuas nrawm, me me, muaj zog tiv thaiv kev cuam tshuam, thiab siv tau yooj yim. Txawm li cas los xij, lawv cov specifications txawv;
Muaj ntau yam kev ntsuas kev ua tau zoo, thiab kev siv ib puag ncig thiab kev ua haujlwm kuj txawv, yog li qhov tsim nyog digital multimeter yuav tsum raug xaiv raws li qhov xwm txheej tshwj xeeb.
muaj nuj nqi
Ntxiv nrog rau kev ntsuas AC thiab DC voltage, AC thiab DC tam sim no, kev tiv thaiv, thiab lwm yam tsib lub luag haujlwm, niaj hnub digital multimeters kuj muaj cov haujlwm xws li kev suav digital, kev kuaj xyuas tus kheej, kev nyeem ntawv, kev nyeem ntawv yuam kev, diode nrhiav, lo lus ntev xaiv, IEEE-488 interface lossis RS-232 interface. Thaum siv lawv, lawv yuav tsum raug xaiv raws li cov cai tshwj xeeb.
qhov tseeb
Qhov siab tshaj plaws tso cai yuam kev ntawm lub tshuab digital multimeter nyob ntawm tsis yog ntawm nws qhov kev hloov pauv lub sijhawm yuam kev, tab sis kuj nyob ntawm nws qhov yuam kev ruaj khov.
Thaum xaiv, nws kuj tseem yuav tsum tau txiav txim siab txog qhov yuav tsum tau ua rau kev ruaj ntseg yuam kev thiab kev ua haujlwm tsis zoo, thiab seb qhov kev daws teeb meem puas ua tau raws li qhov yuav tsum tau ua.
Rau cov digital multimeters uas xav tau qib 0.0005 txog 0.002, tsawg kawg yog 61 tus lej yuav tsum tau tso tawm; Qib 0.005 txog 0.01, muaj tsawg kawg yog 51 tus lej tso tawm;
Qib 0.02 txog 0.05, nrog tsawg kawg yog 41 tus lej tso tawm; Hauv qab qib 0.1, yuav tsum muaj tsawg kawg 31 tus lej tso tawm.
Range thiab ntsuas qhov ntau
Ib qho digital multimeter muaj ntau qhov sib txawv, tab sis nws qhov ntau yam muaj qhov tseeb tshaj plaws. Ntau cov multimeters muaj qhov hloov pauv tsis siv neeg, uas tshem tawm qhov xav tau ntawm phau ntawv hloov kho, ua kev ntsuas yooj yim, nyab xeeb, thiab nrawm.
Kuj tseem muaj ntau cov digital multimeters uas muaj peev xwm tshaj qhov ntau. Thaum ntsuas tus nqi siab tshaj qhov ntau tab sis tseem tsis tau mus txog qhov siab tshaj plaws zaub, tsis tas yuav hloov qhov ntau, yog li txhim kho qhov tseeb thiab daws teeb meem.
