Ntawv
1. Cov ntsiab lus yooj yim ntawm DC meter thiab AC meter '
2. Qhov sib txawv ntawm cov khoom siv tam sim no
3. Qhov sib txawv ntawm cov txheej txheem sab hauv
4. Qhov sib txawv hauv cov txheej txheem calibration
5. Nta ntawm kev tsim kho thiab tsim
6. Piv ntawm daim ntawv thov cov xwm txheej
7. Ntsiab lus
1. Cov ntsiab lus yooj yim ntawm DC meter thiab AC meter '
DC meter thiab AC meter meter yog ob qhov cuab yeej siv tau siv hauv hluav taws xob engineering los ntsuas tam sim no nyob rau hauv circuits. Txawm hais tias lawv cov haujlwm tseem ceeb yog ntsuas tam sim no, muaj cov kev siv hluav taws xob thiab cov ntawv thov ntawm cov yam ntxwv sib txawv ntawm kev ncaj qha (DC) thiab lwm yam).
2. Qhov sib txawv ntawm cov khoom siv tam sim no
DC meter: Siv ntsuas ncaj qha tam sim no, uas yog, tam sim no ntws nyob rau hauv tsuas yog ib qho tam sim no hauv roj teeb, hnub ci vaj huam sib luag lossis hluav taws xob nrog hluav taws xob.
AC meter ': siv los ntsuas kev hloov pauv tam sim no, uas yog, qhov loj ntawm cov kev hloov pauv tam sim dhau sijhawm, xws li tam sim no hauv ib lub zog ntawm tsev lossis fais fab.
Qhov kev sib txawv ntawm qhov tseem ceeb no txiav txim siab tus qauv tsim qauv thiab ua haujlwm ntawm lub hauv paus ntsiab lus ntawm ob meters.
3. Qhov sib txawv ntawm cov txheej txheem sab hauv
DC meter: feem ntau siv cov txheej txheem txav coil. Thaum cov tam sim no hla dhau ntawm kauj, daim teb sib nqus yog tsim tawm, uas deflects tus pointer ntawm lub hu, qhia qhov loj tam sim no.
AC meter meter: feem ntau siv kev tsiv hlau tshuab lossis lub tshuab hluav taws xob. Kev hloov pauv tam sim no hloov chaw sib nqus sib xyaw ua ke rau hauv cov chead sib nqus, ua rau tus pointer txav los qhia qhov tam sim no.
Txij li cov kev taw qhia thiab qhov ntau ntawm cov kev xaiv tam sim no yog kev hloov tas li, lub AC meter yuav tsum tau ntsuas qhov tseeb.
4. Qhov sib txawv hauv cov txheej txheem calibration
DC meter: calibrated los ntsuas cov nqi nruab nrab ntawm qhov tam sim no (piv txwv li lub hauv paus txhais tau tias square nqi, RMS), uas qhia txog lub zog tiag tiag los ntawm DC.
AC meter meter: ntsuas kom ntsuas cov txiaj ntsig zoo ntawm qhov tam sim no, uas tau hloov mus rau lub sijhawm tam sim no, yog li muaj qhov tseeb sawv cev ntawm lub zog ntawm AC.
Qhov sib txawv hauv kev ntsuas hluav taws xob ua rau ob lub metres kom yoog rau ntau hom kev ntsuas cov kev ntsuas tam sim no.
5. Nta ntawm kev tsim kho thiab tsim
DC meter: Vim yog cov unidirectional xwm ntawm DC, nws feem ntau yooj yim thiab ntau dua li ntawm ib puag ncig ruaj khov.
AC meter ': txhawm rau hloov kho cov yam ntxwv nyuaj ntawm AC, nws cov kev tsim kho yog cov khoom siv ntxiv thiab cov ntxaij vab tshaus thiab cov ntxaij lim dej kom ntseeg tau qhov tseeb ntawm kev ntsuas.
6. Piv ntawm daim ntawv thov cov xwm txheej
DC meter:
Siv hauv cov xwm txheej thov cov xwm txheej uas xav tau tam sim no ruaj khov, roj teeb them, hluav taws xob kuaj, thiab lwm yam.
Feem ntau siv nyob rau hauv chaw sojntsuam, hluav taws xob tsim kho thiab lub zog txuas ntxiv rau cov chaw.
Mac Meter:
Dav siv nyob rau hauv thaj chaw, kev lag luam thiab kev lag luam ib puag ncig los ntsuas AC tam sim no los ntawm cov khoom siv hluav taws xob rau ntau yam khoom siv hluav taws xob.
Feem ntau siv nyob rau hauv lub zog kho cov txheej txheem, kev kuaj hauv tsev hauv tsev thiab kev siv khoom lag luam.
7. Ntsiab lus
DC meters thiab acat meters muaj qhov tseem ceeb sib txawv hauv hom kev ntsuas tam sim no, sab hauv, kev tsim kho qauv thiab cov ntawv xaiv. DC metters yog haum rau ruaj khov, unidirectional kev ntsuas tam sim no, thaum lub sij hawm meters tuaj yeem ua kom ACurents uas hloov pauv thiab qhov loj me txhua lub sijhawm. Nkag siab cov kev sib txawv no yog qhov sib txawv rau cov tshuab hluav taws xob thiab cov kws ntsuas hluav taws xob kom paub tseeb tias qhov tseeb ntawm kev ntsuas ntsuas thiab kev ntseeg tau ntawm cov kab ke.
Seb nws yog siv rau kev kuaj nrhiav, kev lag luam tswj lossis kev tswj hwm hluav taws xob zoo ib yam yog cov kauj ruam tseem ceeb hauv kev ua tiav kev tswj hwm cov zog thiab khoom siv.