Multimeter vs Voltmeter: Dab tsi yog qhov txawv?

Yog tias koj nyiam ua haujlwm nrog cov khoom siv hluav taws xob, koj yuav tsum paub tias ob qho tib si multimeters thiab voltmeters yog cov cuab yeej siv tau zoo thiab tseem ceeb hauv ntau txoj hauv kev. Txawm li cas los xij, feem ntau tuaj yeem tsis meej pem rau qee tus neeg raws li qhov zoo tshaj plaws haum rau lawv cov kev xav tau. Thaum peb paub tseeb tias koj yuav muaj qee lub tswv yim dav dav ntawm txhua yam ntawm cov cuab yeej no yog dab tsi, kev saib ze dua tuaj yeem pab tau zoo thaum ua haujlwm ntawm ib qhov project.

Txhawm rau pab koj nkag siab zoo dua ob qho ntawm cov cuab yeej no thiab qhov sib txawv ntawm lawv, nyeem phau ntawv qhia yooj yim rau kev nkag siab no. Peb yuav tshawb xyuas cov yam ntxwv ntawm txhua lub cuab yeej thiab seb lawv txawv ntawm ib leeg li cas ntawm kev ua haujlwm.

Lub voltmeter yog ib qho cuab yeej siv ntau yam uas tsuas ntsuas qhov voltage. Ib qho multimeter, ntawm qhov tod tes, muaj ntau txoj kev xaiv, tab sis kuj tseem kim dua rau tib qho laj thawj. Qhov no kuj ua rau muaj qhov sib txawv loj hauv lawv cov nqi vim tias multimeters kim dua.

Multimeter vs voltmeter: qhov twg xaiv?

Qhov no yog qhov kev txiav txim siab uas koj yuav tsum ua raws li tag nrho ntawm txhua lub cuab yeej ua haujlwm li cas. Qhov tseem ceeb, nws yuav tsum ua nrog hom kev ntsuas koj xav tau thiab ntau npaum li cas koj tuaj yeem siv nyiaj. Los ntawm kev nkag siab koj cov kev xav tau, koj yuav tsum muaj peev xwm txiav txim siab qhov twg ntawm ob qhov yuav pab tau koj zoo tshaj plaws.

Ua tib zoo nyeem cov ntaub ntawv hauv qab no txog txhua lub cuab yeej kom paub seb txhua tus ua li cas thiab nws yuav cuam tshuam li cas rau koj qhov kev txiav txim siab.

Nkag siab txog Kev Ua Haujlwm ntawm Voltmeter

Lub luag haujlwm tseem ceeb ntawm voltmeter yog ntsuas qhov voltage dhau ntawm ob lub nodes. Los ntawm ib qho kev pom, volt yog ib chav tsev ntawm qhov sib txawv ntawm ob lub nodes, thiab qhov sib txawv no yog ntsuas hauv volts. Qhov voltage nws tus kheej tuaj nyob rau hauv ob hom raws li peb kuj muaj ob hom tam sim no xws li direct tam sim no (DC) thiab alternating tam sim no (AC). Qee cov voltmeters tsuas yog ntsuas qhov tam sim no ncaj qha, thaum lwm tus ntsuas tsuas yog hloov tam sim no. Tom qab ntawd koj kuj muaj kev xaiv ntawm voltmeters uas ntsuas ob qho tib si ntawm tib lub cuab yeej.

Kev tsim kho sab hauv ntawm lub ntsuas hluav taws xob yog qhov yooj yim heev thiab tsuas yog muaj cov kauj ntawm cov hlau nyias uas nqa cov tam sim no raug tshem tawm nyob ib puag ncig sab nraud magnetic teb. Cov cuab yeej los nrog ob lub clamps uas, thaum txuas nrog ob lub nodes, ua tam sim no los ntawm cov hlau sab hauv. Qhov no ua rau cov hlau ua rau lub zog sib nqus, thiab lub kauj uas nws nyob tau pib tig. Qhov no txav lub ntsuas ntsuas ntawm cov zaub, uas qhia txog tus nqi hluav taws xob. Cov voltmeters digital muaj kev nyab xeeb dua li rab koob ntsuas thiab muaj dav dav rau hnub no. (1)

Eversame Flat US Plug AC 80-300V LCD Digital Voltmeter

Thaum lub ntsuas hluav taws xob tau teev tseg saum toj no ntsuas ntau lub ntsiab lus, koj tuaj yeem pom cov khoom siv tshem tawm xws li Eversame Flat US Plug AC 80-300V LCD Digital Voltmeter, uas qhia tau hais tias qhov hluav taws xob ntws los ntawm lub qhov hluav taws xob tshwj xeeb. Nws yog siv los saib xyuas cov khoom siv txuas rau hauv qhov hluav taws xob thiab tuaj yeem pab tiv thaiv kev puas tsuaj hluav taws xob thaum muaj hluav taws xob.

Multimeter ua li cas?

Ib yam uas multimeter tuaj yeem ua tau zoo li lub voltmeter. Yog li ntawd, yog tias koj tab tom yuav ib qho analog multimeter, koj yuav cia li txaus siab rau koj xav tau voltmeter. Lub multimeter tuaj yeem ntsuas qhov ntsuas hluav taws xob thiab hluav taws xob xws li tam sim no thiab tsis kam. Ntau cov multimeters kuj ntsuas tsis xws li capacitance, kub, zaus, inductance, acidity, thiab txheeb ze humidity.

Lub internals ntawm ib tug multimeter yog ntau complex thiab muaj xws li lwm yam xws li resistors, capacitors, kub sensors, thiab lwm yam. Los ntawm kev pom zoo ntawm kev pom, nws yooj yim heev kom pom tias multimeter yog ib qho khoom siv ntau dua li qhov yooj yim voltmeter.

UYIGAO TRMS 6000 digital multimeter

Ib qho piv txwv ntawm kev ua haujlwm siab voltmeter yog UYIGAO TRMS 6000 digital multimeter, ib qho cuab yeej uas muaj ntau yam kev ntsuas los xaiv. Nrog rau cov cuab yeej no, koj tuaj yeem ntsuas ntau qhov ntsuas, suav nrog qhov ntsuas kub, qhov ntsuas hluav taws xob, AC voltage, AC tam sim no, DC voltage, DC tam sim no, zaus, thiab tsis kam.

Cov cuab yeej tseem muaj lwm yam tshwj xeeb xws li beep, pib thiab phau ntawv sib txawv, NCV nrhiav pom, thiab pib lub hwj chim tawm kom txuag tau roj teeb. Cov cuab yeej tseem muaj qhov loj 3-nti zaub uas yooj yim nyeem thiab rov qab. Nws yog qhov tsim nyog rau kev siv tshaj lij thiab muaj lub tsev nyob ruaj khov kom tsis txhob muaj kev puas tsuaj thaum poob. Koj tseem tuaj yeem tso nws rau ntawm qhov chaw tiaj tus uas siv cov khoom siv nrog. (2)

Summing txog

Txog tam sim no, tej zaum koj twb nkag siab tias ob lub cuab yeej no txawv ntawm ib leeg ntawm lawv txoj haujlwm. Lub voltmeter yog qhov yooj yim heev tab sis tuaj yeem muaj ntau yam duab thiab qhov ntau thiab tsawg rau kev siv ruaj khov thiab yooj yim. Nws kuj yog qhov kev xaiv pheej yig dua ntawm ob, tab sis qhov no kuj yog vim nws qhov ua haujlwm tsawg. Multimeters, ntawm qhov tod tes, yog cov cuab yeej siv ntau yam uas tuaj yeem pab koj hauv ntau hom kev siv, tab sis koj yuav tsum tau them nyiaj ntau ntau yog tias koj xav tau. Xav txog koj cov kev xav tau thiab koj tuaj yeem yooj yim txiav txim siab seb qhov twg yuav haum koj zoo tshaj.

Ua tib zoo saib qee qhov ntawm peb cov lus hauv qab no.

• Yuav ua li cas ntsuas DC voltage nrog multimeter
• Yuav ua li cas nyeem ib tug analog multimeter
• Multimeter voltage cim

tswv yim pom zoo

(1) magnetic teb - https://www.britannica.com/science/magnet-field

(2) kev txuag roj teeb - https://www.apple.com/ph/batteries/maximizing-performance/