Yuav Ua Li Cas Siv Lub Hauv Paus Multimeter: 8 Kauj Ruam

2024 Tus sau: John Day | [email protected]. Kawg hloov kho: 2024-01-30 09:28

Multimeter lossis multitester, tseem hu ua VOM (volt-ohm-milliammeter), yog lub ntsuas hluav taws xob uas suav nrog ntau qhov kev ntsuas hauv ib chav. Ib qho kev ntsuas multimeter tuaj yeem ntsuas qhov hluav taws xob, tam sim no, thiab tsis kam. Analog multimeters siv lub microammeter nrog tus pointer txav los tso saib kev nyeem ntawv.

Muaj ntau hom multimeter rau ntau daim ntawv thov tab sis hauv qhov kev qhia no, peb yuav sib cais tsuas yog ib qho uas feem ntau pom thiab tsis kim li.

Kauj Ruam 1: Yuav Siv Li Cas Digital Multimeter

Ib lub digital multimeter tuaj yeem siv rau qhov ntsuas hluav taws xob, kev tiv thaiv, tam sim no, txuas ntxiv, tiv thaiv, lub peev xwm los ntsuas cov transistors, txawm tias sab hauv tsis kam ntawm lub capacitor hauv /tawm cov hluav taws xob.

Digital multimeters (DMM, DVOM) muaj cov lej lej, thiab tseem tuaj yeem qhia cov duab kab uas sawv cev rau tus nqi ntsuas. Digital multimeter tam sim no muaj ntau dua vim yog lawv tus nqi thiab qhov tseeb, tab sis analog multimeters tseem nyiam dua hauv qee kis, piv txwv li thaum saib xyuas tus nqi sib txawv sai.

Kauj Ruam 2: Fluke Multimeter

Fluke Corporation, lub hauv paus ntawm Fortive, yog cov chaw tsim khoom lag luam kuaj cov khoom suav nrog cov cuab yeej ntsuas hluav taws xob. Nws tau pib xyoo 1948 los ntawm John Fluke, uas yog phooj ywg thiab chav nyob ntawm David Packard, yav tom ntej tus tsim ntawm Hewlett-Packard, thaum ob leeg tau ua haujlwm ntawm General Electric.

Cov multimeter no yog qhov siab kawg ntawm cov xov tooj cua uas paub zoo tias yog lub tshuab ntsuas qhov tseeb thiab ruaj khov feem ntau cov kws kho hluav taws xob kho siv cov hom ntsuas no

Kauj Ruam 3: Yuav Siv Lub Tshuab Ntsuas Ntau Li Cas rau Qhov Hluav Taws Xob

Qhov hluav taws xob, qhov muaj peev xwm sib txawv, hluav taws xob siab lossis hluav taws xob nrawm (raug hais tawm ∆V lossis ∆U, tab sis feem ntau yooj yim li V lossis U, piv txwv li hauv cov ntsiab lus ntawm Ohm lossis Kirchhoff txoj cai lij choj) yog qhov sib txawv ntawm cov peev xwm hluav taws xob ntawm ob lub ntsiab lus.

Yav dhau los, rau kev suav dua qhov hluav taws xob peb yuav siv lub voltmeter, tab sis qhov ua tau zoo dua hnub no yog siv lub multimeter vim tias tau txais ntau lub luag haujlwm thiab koj tsis xav tau lub cuab yeej rau txhua daim ntawv thov.

Kauj Ruam 4: Volmeter Ammeter

Koj yuav tsum nco ntsoov tias ntsuas qhov ntsuas hluav taws xob tau yooj yim heev thiab txhua qhov ntsuas tshiab tau tsim hauv qhov pib ua haujlwm kom paub qhov hluav taws xob lossis yog tias tsis yog lawv muaj kev xaiv los ntawm AC/DC.

AC qhov hluav taws xob (hloov pauv tam sim no) yog qhov hluav taws xob thiab tam sim no hauv peb qhov hluav taws xob ntsaws 120/110/220/240v thiab cov cuab yeej ntawm hom hluav taws xob/tam sim no hloov pauv rov qab-rau tom ntej 50/60 Hz zaus/thib ob qhov tseem ceeb ntawm hom no ntawm qhov hluav taws xob yog qhov faib faib ntev heev hauv kev sib piv nrog DC.

DC qhov hluav taws xob yog qhov ncaj ntawm qhov hluav taws xob/tam sim no thiab cuam tshuam nrog roj teeb 12v/9v/1.5v

Kauj Ruam 5: Ntsuas Roj Teeb Nrog Multimeter

Lub multimeter muaj qhov haujlwm tshwj xeeb no uas nws tuaj yeem txheeb xyuas qhov hluav taws xob thiab koj muaj qhov kev xaiv los xaiv qhov ntau rau koj qhov kev ntsuas qhov tsim nyog thiab yog tias qee qhov koj yuav dhau qhov hluav taws xob ntawm lub vijtsam multimeter lcd yuav tshwm lub cim 1 lub ntsiab lus qhov hluav taws xob yog siab dua xaiv ntau yam

Kauj Ruam 6: Tshawb xyuas txuas ntxiv

Hauv cov khoom siv hluav taws xob, kev ntsuas txuas mus txuas ntxiv yog kev tshuaj xyuas hluav taws xob hauv hluav taws xob kom pom tias cov dej ntws tam sim no (uas nws yog qhov ua tiav qhov Circuit Court). tivthaiv xws li tus hais lus piezoelectric) hla txoj kev xaiv. Yog tias lub tshuab hluav taws xob tsis zoo los ntawm cov neeg ua haujlwm tawg, cov khoom puas, lossis tiv thaiv ntau dhau, lub Circuit Court "qhib".

Kauj Ruam 7: Cov Cim Cim Cim

Koj nyob ntawm no ib daim duab ntawm cov cim multimeter

Qhov tseem ceeb, lub ntsuas cua yog lub cuab yeej hluav taws xob uas ntsuas tam sim no, qhov hluav taws xob, thiab kev tiv thaiv. (Koj kuj tseem yuav tau hnov lawv hu ua "multitesters.") Tam sim no ntsuas hauv amps, kev tiv thaiv raug ntsuas hauv ohms, thiab ntsuas hluav taws xob ntsuas hauv volts. Muaj ob hom tseem ceeb ntawm multimeters: analog meters thiab digital meters. Txawm hais tias cov ntsuas sib piv siv rab koob los ntsuas ntsuas, niaj hnub no tib neeg feem ntau siv digital multimeters. Digital multimeters feem ntau yog qhov tseeb thiab muab nyeem zoo ib yam.

Kauj Ruam 8: Sab Hauv Digital Multimeter

Ntawm no koj mus sai sai pom sab hauv digital multimeter nws tsis nyuaj tab sis tsis yooj yim ib yam li cov cuab yeej pab no

hobbyist hauv hluav taws xob los ua cov ntaub ntawv tseem ceeb tshaj plaws ntawm kev ntsuas hluav taws xob, tam sim no, txuas ntxiv, tiv thaiv thiab tom qab koj paub txhua yam txheej txheem no dua li koj tuaj yeem yuav cov kws tshaj lij thiab siv ntau dua tab sis txog thaum ntawd koj tuaj yeem ua si nrog pheej yig thiab ntseeg tau.