Puas yog qhov voltage ntsuas los ntawm multimeter nyob rau hauv AC hom nyob rau hauv series los yog parallel?
Lub multimeter ntsuas voltage nyob rau hauv parallel thiab tam sim no nyob rau hauv series, seb nws yog AC los yog DC. Lub sab hauv tsis kam ntawm multimeter nyob rau hauv qhov voltage ntau yog nyob ze rau infinity, yog li yog hais tias tus voltage ntau yam yog xaiv thiab lub multimeter txuas nrog series nyob rau hauv Circuit Court, yeej tsis muaj tam sim no los yog tam sim no me me, yog li tsis muaj ntaub ntawv yuav ua tau. ntsuas. Rau qhov tam sim no, qhov kev tiv thaiv sab hauv yog ze rau 0, yog li kev sib txuas nws hauv cov kab hauv Circuit Court tsis cuam tshuam rau kev ua haujlwm ntawm cov khoom siv hluav taws xob tom ntej.
Tab sis yog hais tias qhov tsis ncaj ncees lawm hom yog xaiv thiab kev cob cog rua nyob rau hauv parallel nyob rau hauv lub Circuit Court, xws li qhov teeb meem nug los ntawm lub ntsiab lus nug, yog hais tias lub voltage hom hloov mus rau lub tam sim no hom thiab txuas nyob rau hauv parallel ntawm ob qho tag nrho ntawm 220V fais fab mov, nws yog qhov txaus ntshai heev. Nws yuav ncaj qha luv-circuit thiab yuav hlawv tawm lub multimeter los yog Circuit Court.
Qhov ntau qhov voltage kuj muaj kev nyab xeeb rau kev ntsuas, thiab txawm tias thaum txuas nrog hauv series hauv Circuit Court, nws yuav tsis ua rau muaj kev phom sij ntau npaum li qhov tam sim no qhov sib txuas tsis raug. Peb siv multimeter los ntsuas qee cov ntaub ntawv, yog li peb yuav tsum xav txog yuav ua li cas ntsuas nws ua ntej ntsuas.
Txawm hais tias nws yog nyob rau hauv series los yog thaum uas tig mus, thawj qhov yuav tsum to taub yog lub hauv paus ntsiab lus ntawm kev ntsuas AC voltage nrog ib tug multimeter. Lub taub hau multimeter tsuas tuaj yeem ntsuas DC voltage, uas txhais tau hais tias nws tsuas ntsuas DC voltage. Yog li vim li cas nws thiaj ntsuas AC voltage? Nws yog vim hais tias lub multimeter muaj ib tug rectifier Circuit Court nyob rau hauv, uas siv lub unidirectional conductivity ntawm lub diode los hloov lub AC teeb liab mus rau hauv ib tug DC teeb liab. Yog li, nws tuaj yeem ntsuas AC voltage. Uas yog hais tias, thaum ntsuas 220V voltage nyob rau hauv AC ntau yam ntawm ib tug multimeter, nws yog ib tug parallel circuit.
Lub hauv paus ntsiab lus ntawm AC voltage ntsuas: Thaum ntsuas AC voltage nrog ib tug multimeter, muaj ib nrab nthwv dej rectification Circuit Court nyob rau hauv lub multimeter. Thaum ntsuas AC voltage, AC voltage yog rectified rau DC voltage thiab ces hla dhau ob meters. Thaum kawg, AC voltage yog ntsuas raws qhov loj ntawm DC tam sim no. Ntxiv mus, AC voltage tso tawm ntawm lub multimeter tsis yog tus nqi tam sim no ntawm AC tam sim no, tab sis tus nqi nruab nrab ntawm lub sijhawm, uas yog, tus nqi zoo. Qhov tseeb, sab hauv ntawm multimeter tsis yog qhov yooj yim. Nws kuj yuav tsum tau mus los ntawm lub chaw ua haujlwm amplifier kom nthuav dav lub teeb liab, ua piv txwv, ua analog-rau-digital conversion, thiab thaum kawg tso tawm qhov tshwm sim ntawm qhov screen.
