Plaub yam tseem ceeb yuav tsum tau ua ntej thaum yuav khoom Multimeter
Multimeter yog ib qho khoom siv ntau yam uas tseem tuaj yeem nqa tau yooj yim thiab siv los ntsuas ntau yam resistors, voltages, thiab tam sim no. Nws kuj yog ib qho khoom siv los ntawm cov neeg ua haujlwm kho hluav taws xob. Vim nws cov khoom siv ntau yam zoo, nws tseem hu ua multimeter lossis reusable rooj.
Txawm hais tias kev siv ntau zaus, yuav muaj qee tus neeg uas tsis paub txaus txog cov khoom, thiab lawv yuav tsis meej pem txog kev xaiv cov khoom uas haum rau lawv (vim tias peb tsis yog cov kws tshaj lij cov neeg ua haujlwm). Niaj hnub no, tus editor yuav qhia rau txhua tus, qhov twg peb tuaj yeem xaiv qhov tsim nyog multimeter rau peb tus kheej ~
Thaum muas lub multimeter, nws yog ib qho tseem ceeb uas yuav tau xav txog cov ntsiab lus hauv qab no:
(1) Zaub hom
Digital multimeters yog tsim rau cov xwm txheej uas yuav tsum tau ntsuas siab; Analog multimeters yog haum rau ntsuas qhov xwm txheej nrog cov kev cai dav dav; Tam sim no muaj dual zaub multimeter uas sib txuas ua haujlwm analog thiab digital, haum rau kev sim cov xwm txheej nrog cov ntsiab lus nplua nuj. Nrog rau kev txhim kho ntawm kev ntsuas kev ua haujlwm thiab tus nqi -kev ua tau zoo ntawm digital multimeters, kev siv pointer multimeters yuav dhau los ua tsawg.
(2) Kev ntsuas yooj yim
Kev ntsuas qhov yooj yim yog qhov tsim nyog rau cov khoom siv dav dav, xws li DC tam sim no, qhov hluav taws xob ntau, AC qhov hluav taws xob ntau, thiab ntau yam tsis kam. Thaum tsim nyog, kev txiav txim siab yuav tsum tau muab rau seb qhov ntsuas AC tam sim no puas tsim nyog.
(3) Ntau yam ntxiv
Raws li kev xav txog kev ntsuas ntxiv tuaj yeem ua rau muaj ntau yam yooj yim rau kev saib xyuas txhua hnub, xws li hom capacitor (qee lub digital multimeters muaj peev xwm txog li 2000), transistor static coefficient ntsuas hom, thawj hom kev ntsuas ntsuas, diode (DT) ntsuas hom, thiab lwm yam.
(4) Kev ntsuas qhov tseeb.
Yog hais tias qhov ntsuas yog ib qho yuav tsum tau ua, qhov ntsuas qib yuav raug xaiv kom qis dua; Yog tias cov cuab yeej siv los kho cov hluav taws xob hluav taws xob thiab xav tau kev ua haujlwm zoo dua, qhov ntsuas qib yuav tsum siab dua me ntsis; Yog tias qhov ntsuas tau siv rau kev tshawb fawb txog kev tshawb fawb, yuav tsum xaiv qhov ntsuas qib siab dua.
Yam Lus Ceeb Toom:
Thaum muas ib lub multimeter, yog tias tus nqi tsis raug txiav txim siab, qhov tseem ceeb yuav tsum tau ua raws li cov lus qhia tshwj xeeb, thaum tseem xav txog qhov pom thiab qhov loj me. Yog tias siv hauv chav kuaj, cov khoom uas muaj qhov ntim loj dua, qhov tseeb dua, thiab qhov ntsuas qhov dav tuaj yeem yuav. Yog tias nws nquag siv sab nraud thiab muaj kev ua haujlwm zoo, yuav ib nrab - ntau yam nrog rau qhov zoo nkauj dua. Yog tias nws yog siv rau kev tsim kho sab nraum zoov, yuav ib lub multimeter portable uas yog me me, pheej yig tus nqi, tuaj yeem ua tau raws li kev ntsuas kev xav tau, tsis muaj dej, pov thawj pwm, thiab muaj cov ntaub thaiv npog. Rau cov kws tshawb fawb, ib qho oscilloscope multimeter nrog ob qho tib si digital display thiab oscilloscope functions yuav siv tau.
