Muaj pes tsawg txoj kev tuaj yeem ua haujlwm tsis zoo ntawm multimeter tuaj yeem muab faib ua?
Lub multimeter tsis tsuas yog siv los ntsuas qhov tsis kam ntawm cov khoom ntsuas, tab sis kuj ntsuas AC thiab DC voltages. Qee qhov multimeters tuaj yeem ntsuas qhov tseem ceeb ntawm cov transistors thiab lub peev xwm ntawm capacitors. Kev paub txog kev siv lub tshuab multimeter yog ib qho kev txawj ntse tshaj plaws hauv kev siv tshuab hluav taws xob. Ntau hom multimeter muaj xws li pointer type multimeter thiab digital multimeter. Lub pointer hom multimeter yog ib qho kev ntsuas ntau yam nrog lub taub hau ' meter ' raws li cov ntsiab lus tseem ceeb, thiab ntsuas qhov ntsuas tau qhia thiab nyeem los ntawm tus taw tes ntawm lub ntsuas lub taub hau. Qhov ntsuas qhov tseem ceeb ntawm digital multimeter yog ncaj qha tso tawm hauv daim ntawv digital ntawm lub vijtsam LCD, ua rau nws yooj yim nyeem. Ib txhia kuj muaj lub suab hais. Multimeter yog ib qho cuab yeej uas sib koom ib lub taub hau 'meter' thiab integrates ib voltmeter, ammeter, thiab ohmmeter. Qhov tsis ua haujlwm ntawm multimeter tshwm sim vim muaj ntau yam, thiab qhov randomness ntsib teeb meem yog siab. Tsis muaj ntau txoj cai ua raws li, ua rau kev kho nyuaj. Tus kws kho qhov zoo tau sau qee qhov kev kho kho uas tau sau tseg hauv xyoo ntawm kev ua haujlwm zoo rau txhua tus neeg siv. Cov txheej txheem rau kev daws teeb meem Fluke multimeter tuaj yeem muab faib ua cov hauv qab no:
(1) Txoj kev ntsuas qhov ntsuas hluav taws xob ntsuas seb qhov ua haujlwm voltage ntawm txhua qhov tseem ceeb yog qhov qub, uas tuaj yeem txheeb xyuas qhov ua txhaum ntawm qhov taw tes sai. Piv txwv li, ntsuas qhov ua haujlwm voltage thiab siv voltage ntawm A / D converter.
(2) Cov txheej txheem kev hnov lus ncaj qha txiav txim siab qhov ua rau lub cev tsis ua haujlwm los ntawm kev tso siab rau qhov kev xav. Los ntawm kev tshuaj xyuas qhov muag, nws tuaj yeem ntes cov teeb meem xws li hlau tawg, desoldering, luv Circuit Court ntawm cov xaim hauv av, tawg fuse hlab, cov khoom siv hluav taws xob, kev puas tsuaj, cov ntawv ci tooj liab warping thiab tawg ntawm cov ntawv luam tawm, thiab lwm yam; Koj tuaj yeem kov qhov kub thiab txias ntawm lub roj teeb, resistor, transistor, thiab kev sib xyaw ua ke, thiab xa mus rau daim duab kos duab los txheeb xyuas qhov ua rau qhov kub tsis zoo. Tsis tas li ntawd, koj tuaj yeem tshawb xyuas ntawm tes seb cov khoom puas yog xoob, seb cov pins sib xyaw ua ke tau ruaj ntseg, thiab seb qhov hloov pauv hloov tau daig; Nws tuaj yeem hnov thiab hnov ntxhiab tsw rau txhua lub suab txawv txav lossis tsw ntxhiab.
(3) Cov txheej txheem hluav taws xob hluav taws xob tshem tawm qhov tsis txaus ntseeg ntawm tag nrho lub tshuab lossis chav tsev hluav taws xob. Yog hais tias qhov txhaum ploj mus, nws qhia tau hais tias qhov txhaum yog nyob rau hauv lub disconnected Circuit Court. Txoj kev no yog qhov tsim nyog rau cov xwm txheej uas muaj luv luv hauv Circuit Court.
(4) Txoj kev luv luv Circuit Court feem ntau yog siv rau hauv kev tshuaj xyuas ntawm A / D converters tau hais ua ntej, uas feem ntau siv los kho cov twj tsis muaj zog thiab micro hluav taws xob.
(5) Thaum qhov kev ua txhaum tau nqaim mus rau ib qho chaw lossis ntau qhov chaw, kev ntsuas hauv online lossis offline tuaj yeem ua tiav los ntawm kev ntsuas qhov ntsuas. Yog tias tsim nyog, hloov nrog cov khoom zoo. Yog tias qhov txhaum ploj mus, nws qhia tau tias cov khoom puas lawm.
(6) Txoj kev cuam tshuam siv tib neeg qhov hluav taws xob cuam tshuam raws li lub teeb liab cuam tshuam los soj ntsuam cov kev hloov pauv hauv LCD zaub, thiab feem ntau yog siv los xyuas seb cov khoom siv hluav taws xob thiab cov khoom siv puas zoo lawm.
