Dab tsi yog txoj kev ceev tshaj plaws los kawm cov digital multimeter sai?
Multimeters tsis yog tsuas yog siv dav, tab sis kuj muaj ntau hom, xws li pointer multimeters, clamp-on multimeters, thiab digital multimeters. Lawv txhua tus messed. Yog tias koj xav tham txog lawv kom meej, koj tuaj yeem sau ib phau ntawv. Tab sis muaj shortcuts rau txhua yam. Nws tsis yog qhov nyuaj kom ceev cov txuj ci ntawm kev siv multimeter. Ua ntej tshaj plaws, koj yuav tsum paub tias nws muaj nuj nqi dab tsi, nws tuaj yeem ntsuas tau, cov haujlwm twg tshwj xeeb yog siv, thiab cov haujlwm twg yog siv nyob rau hauv yim lub neej. Yog tias koj tsis xav tau, ua ntej nkag siab txog cov haujlwm uas feem ntau siv thaum ntxov, thiab nws tsis lig dhau los ua kom tob rau lwm yam haujlwm yav tom ntej. Feem ntau thiab feem ntau siv hauv kev lag luam yog digital multimeter. Cia peb coj tus digital multimeter ua piv txwv. Saib cov shortcuts uas koj kawm tau sai.
Muaj nuj nqi
Txawm hais tias nws yog multimeter, nws yeej tsuas muaj ob peb txoj haujlwm xwb. Cia kuv txheeb nws. Kev ua haujlwm siab dua, feem ntau siv nws yog, thiab qhov tseem ceeb dua.
Ntsuas qhov txuas ntxiv ntawm ob lub ntsiab lus;
Ntsuas qhov tsis kam ntawm ob lub ntsiab lus;
Ntsuas qhov voltage ntawm ob lub ntsiab lus;
Ntsuas diode;
Ntsuas kev ua haujlwm tam sim no
Ntsuas capacitance
Ntsuas qhov magnification ntawm triode
Ntsuas kub
Ntsuas lub teeb liab zaus
Ntawm 9 lub luag haujlwm tau teev tseg saum toj no, cov khoom 1, 2, 3, thiab 4 yuav tsum tau ua kom zoo. Tsuas yog thaum koj paub 4 yam khoom no tuaj yeem qhia rau lwm tus tias koj tuaj yeem siv multimeter. Qee tus neeg xav tias kev ntsuas tam sim no yuav tsum tsis txhob tseem ceeb heev, tsis yog, tsis yog, tsis yog, koj yuav tsis siv qhov haujlwm no ob zaug hauv ib xyoos, yog li tsis txhob maj nkag siab nws. Ok, tam sim no cia peb daws ob qhov teeb meem uas ntau tus novices ntsib.
Kuv tsis paub tias ob lub qhov twg los ntxig qhov kev xeem coj mus rau hauv.
Qhov no yuav tsum yog thawj qhov teeb meem loj uas ntau tus pib tshiab yuav ntsib. Lub multimeter muaj ntau lub qhov uas kuv tsis paub qhov twg yuav ntxig nws. Yog hais tias nws yog ntxig yuam kev thiab lub 'meter' puas, nws yuav nyuaj siab.
Qhov tseeb, tsis muaj teeb meem dab tsi ntawm multimeter nws yog, thiab tsis muaj teeb meem dab tsi koj ntsuas, muaj ib lub qhov uas yuav tsum tau muab tso rau. Lub qhov no yog lub qhov COM. Yuav luag tag nrho cov multimeters muaj qhov no. COM ntawm no txhais tau hais tias pej xeem kawg, thiab cov hlau lead kuaj dub yuav tsum tau muab tso rau ntawm no. . Ok, yog li tseem muaj cov cim liab, yuav luag tag nrho cov multimeters muaj lub qhov no, COM ntawm no txhais tau tias cov pej xeem kawg, thiab cov hlau lead dub yuav tsum tau muab tso rau ntawm no. Ok, yog li qhov chaw seem uas cov hlau kuaj liab yuav tsum tau muab tso rau kuj yooj yim heev. Tsuas yog rau kev ntsuas tam sim no, tag nrho cov kev xeem liab ua rau ntsuas lwm txoj haujlwm tau muab tso rau hauv lub qhov uas cim nrog lub cim "0Q", yam tsis muaj kev zam. Vim hais tias lub qhov rau kev ntsuas tam sim no yog ywj siab thiab tsuas yog ntsuas tam sim no, yog li yog tias koj pom cov lus A, mA, uA, thiab lwm yam ntawm lub qhov, ces lub qhov no yuav tsum tau siv los ntsuas tam sim no. Thov ntxig cov hlau kuaj liab rau hauv lub qhov los ntsuas lwm yam haujlwm. Hauv qhov uas tsis yog qhov tam sim no.
