Vim li cas lub tshuab hluav taws xob digital tsis rov qab mus rau xoom thaum luv luv Circuit Court hauv 200 Ω ntau?
Nyob rau hauv 200 Ω ntau, vim muaj qhov tseem ceeb ntawm kev tiv thaiv hauv Circuit Court, ntsuas kev tiv thaiv sab hauv, thiab cov ntsiab lus tiv tauj, qee qhov tails yog qhov qub thaum lub sijhawm luv luv. Tus Tsov tus tw no yuav loj dua thiab tsis tuaj yeem hloov kho thaum siv, tab sis tus nqi tuaj yeem raug txo los ntawm kev so ntawm lub rooj tsav xwm hauv Circuit Court thiab kaw cov ntsiab lus. Koj tuaj yeem luv-circuit nws thaum siv, sau tus nqi, thiab rho tawm ntawm qhov ntsuas.
Yuav ua li cas txiav txim siab seb lub multimeter puas zoo?
Teb: Qhov no yog ib lo lus nug loj, thiab sim tawm txhua qhov kev ua haujlwm yog ib txoj hauv kev zoo. Thaum kuaj, nws yog ib qho tsim nyog yuav tsum xub nrhiav qhov chaw tshawb nrhiav, tab sis feem ntau nws tsis yooj yim sua rau cov neeg siv coj lawv tus kheej qhov chaw kuaj pom, yog li cov txheej txheem zoo thiab ntau npaum li cas tuaj yeem siv rau kev sim dav dav. Qhov kev daws teeb meem yooj yim yog nrhiav qhov chaw tshawb nrhiav thiab ua raws li cov lus qhia siv nws ib zaug.
Yuav ua li cas mus nrhiav tau ib tug multimeter?
Teb: Zoo li lwm yam kev ntsuas ntsuas, lub tshuab multimeter yog ntsuas los ntawm cov chaw tsim khoom thaum nws tawm hauv lub hoobkas. Yog li ntawd, yog tias tsis muaj teeb meem tseem ceeb, thov tsis txhob kho nws arbitrarily. Niaj hnub no, lub taub hau ntawm multimeter feem ntau yog voltmeter, yog li thaum kuaj xyuas lwm yam iav, nws yog ib qho tsim nyog yuav tsum tau ua ntej kho DC voltage iav. Cov iav no yog hu ua cov iav yooj yim los ntawm kev lag luam sab hauv. Yog tias cov iav no tsis raug, yuav luag txhua lub iav thiab kev ua haujlwm (tshwj tsis yog cov iav tiv thaiv) yuav tsis raug. Feem ntau, multimeter yuav teeb lub potentiometer (xws li DC voltage ntau) lossis ntau lub potentiometers (xws li qhov kub thiab txias) rau txhua txoj haujlwm, thiab kuj tseem muaj cov tsis muaj potentiometers (xws li kev tiv thaiv ntau). Nws yog ib qho yooj yim los lis cov uas muaj potentiometers. Tsuas yog nkag mus rau qhov teeb meem nrhiav pom thiab kho nws ncaj qha; Yog tsis muaj potentiometer, nws feem ntau tsis raug. Nyob rau hauv cov ntaub ntawv ntawm misalignment, nws yuav tshwm sim los ntawm kev puas tsuaj rau lub twj paj nruag los yog tsis zoo Circuit Court tiv tauj.
Yuav ua li cas txiav txim siab (nrhiav) seb qhov DC voltage ntau (DCV) ntawm multimeter puas zoo?
Teb: Thaum kuaj, nws yuav tsum xub nrhiav qhov chaw kuaj. Raws li peb ua qhov ntsuas tau zoo thiab muaj nuj nqis, muaj ntau qhov kev sim muaj. Cov chaw kuaj hauv tsev muaj xws li 1.5V alkaline / carbon roj teeb (No. 1, No. 5 / AA, No. 7 / AAA), 1.2V them pas dej, lub xov tooj ntawm tes chargers, fais fab adapters, thiab lwm yam. Thaum kuaj, teeb lub multimeter mus rau qhov xav tau DC voltage ntau, ntxig cov sojntsuam raws li cov lus qhia, txuas qhov chaw kuaj pom, thiab nyeem cov ntawv nyeem ntawm LCD. Tsuav tus nqi ntsuas nyob ib ncig ntawm lub nominal voltage, nws yog txaus.
