Yuav ua li cas los daws qhov teeb meem ntawm multimeter tuaj yeem faib ua ob peb hom?
Lub multimeter tuaj yeem siv tsis tau tsuas yog los ntsuas qhov tsis kam ntawm cov khoom yuav tsum tau ntsuas, tab sis kuj ntsuas AC thiab DC voltages thiab DC voltage. Txawm hais tias qee qhov multimeters tuaj yeem ntsuas qhov tseem ceeb ntawm cov transistors thiab cov capacitance ntawm capacitor. Nws yog ib qho ntawm cov kev txawj ntse tshaj plaws ntawm kev siv tshuab hluav taws xob kom ua tau zoo hauv kev siv multimeters. Multimeters muaj xws li pointer multimeters thiab digital multimeters. Lub pointer multimeter yog ib qho kev ntsuas ntau yam nrog lub ntsuas lub taub hau raws li cov ntsiab lus tseem ceeb, thiab ntsuas tus nqi yog nyeem los ntawm tus pointer ntawm lub taub hau meter. Qhov ntsuas tus nqi ntawm digital multimeter yog ncaj qha tso tawm hauv daim ntawv digital los ntawm cov kua siv lead ua kua, uas yooj yim nyeem, thiab qee qhov kuj muaj lub suab nrov ua haujlwm. Multimeter yog ib lub 'meter' nrog ib lub taub hau, uas integrates ib voltmeter, ammeter thiab ib ohmmeter. Muaj ntau yam hauv qhov tsis ua haujlwm ntawm multimeter, thiab qhov randomness ntawm cov teeb meem tau ntsib yog qhov loj, tsis muaj ntau txoj cai ua raws, thiab nws nyuaj rau kev kho. Tus editor pem hauv ntej txheeb xyuas qee qhov kev kho kho uas tau sau ntau xyoo ntawm kev ua haujlwm tiag tiag rau koj siv. Txoj kev daws teeb meem ntawm Fluke multimeter tuaj yeem faib ua ob pawg hauv qab no:
(1) Txoj kev ntsuas qhov ntsuas hluav taws xob ntsuas seb qhov ua haujlwm voltage ntawm txhua lub ntsiab lus tseem ceeb yog qhov qub, thiab tuaj yeem tshawb pom qhov ua txhaum sai sai. Xws li ntsuas qhov ua haujlwm voltage thiab siv voltage ntawm A / D converter.
(2) Tus txheej txheem sensory ncaj qha txiav txim qhov ua rau qhov tsis ua hauj lwm los ntawm kev nkag siab. Los ntawm kev tshuaj xyuas qhov muag, nws tuaj yeem pom xws li kev sib txuas, desoldering, luv luv Circuit Court, tawg fuse tube, burnt tawm Cheebtsam, mechanical puas tsuaj, thiab tooj liab ntawv ci ntawm cov ntawv luam tawm. Lifting thiab tawg, thiab lwm yam; koj tuaj yeem kov qhov kub thiab txias ntawm cov roj teeb, resistors, transistors, thiab kev sib xyaw ua ke, thiab koj tuaj yeem xa mus rau daim duab kos duab kom paub qhov ua rau qhov kub tsis zoo. Tsis tas li ntawd, los ntawm txhais tes, koj tuaj yeem tshawb xyuas seb cov khoom puas yog xoob, seb cov pins sib xyaw ua ke tau ruaj khov, thiab seb qhov hloov pauv hloov yog daig; koj tuaj yeem hnov thiab hnov txog seb puas muaj suab txawv txav thiab tsw.
(3) Txoj kev sib txuas disconnects qhov tsis txaus ntseeg los ntawm tag nrho lub tshuab lossis chav tsev Circuit Court. Yog hais tias qhov txhaum ploj mus, nws txhais tau hais tias qhov txhaum nyob rau hauv lub disconnected Circuit Court. Cov qauv no feem ntau haum rau qhov xwm txheej uas muaj qhov luv luv hauv Circuit Court.
(4) Short-circuit method Nyob rau hauv A/D converter soj ntsuam txoj kev hais los saum no, feem ntau siv short-circuit method. Txoj kev no feem ntau siv thaum kho cov twj tsis muaj zog thiab micro-hluav taws xob.
(5) Kev ntsuas kev tivthaiv Thaum qhov kev ua txhaum raug txo mus rau ib qho chaw lossis ob peb yam, nws tuaj yeem ntsuas hauv online lossis offline. Yog tias tsim nyog, hloov nws nrog qhov zoo. Yog tias qhov txhaum ploj mus, cov khoom tawg.
(6) Txoj kev cuam tshuam siv tib neeg lub cev induced voltage raws li lub teeb liab cuam tshuam los soj ntsuam cov kev hloov ntawm cov kua siv lead ua kua. Nws yog feem ntau siv los xyuas seb qhov input Circuit Court thiab cov khoom siv puas zoo lawm.
