Dab tsi yog qhov ua haujlwm ntawm multimeter buzzer rau
1. Dab tsi yog lub luag haujlwm ntawm buzzer siv rau?
Teb: Lub buzzer muaj nuj nqi yog ib qho kev ua haujlwm ntxiv ntawm multimeter, feem ntau yog teem rau ntawm 2K Ω. Feem ntau, thaum ntsuas lub voj voog (lossis tsis kam) nrog tus nqi tsis kam qis dua 50 Ω, lub suab nrov nrov. Qhov kev ua haujlwm no ua lub luag haujlwm tseem ceeb hauv kev siv cov tswv yim thiab tuaj yeem txhim kho qhov ua tau zoo ntawm kev ntsuas Circuit Court txuas ntxiv. Nws yog ib qho tsim nyog ua haujlwm rau kev kho hluav taws xob.
2. Vim li cas lub tshuab hluav taws xob digital tsis rov qab mus rau xoom thaum luv luv hauv 200 Ω ntau?
Teb: 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 luv Circuit Court nws ua ntej thaum siv, sau tus nqi, thiab rho tawm ntawm qhov ntsuas.
3. Yuav ua li cas txiav txim siab seb lub tshuab multimeter puas zoo?
Teb: Qhov no yog qhov teeb meem 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 nws tsis tuaj yeem siv rau cov neeg siv los muab lawv tus kheej cov qauv kev tshawb nrhiav qhov chaw, yog li kev ntsuas dav dav tuaj yeem ntsuas tau siv cov txheej txheem zoo thiab ntau. Cov kev daws teeb meem yooj yim yog nrhiav qhov chaw tshawb nrhiav thiab siv nws ib zaug raws li cov lus qhia.
4. Yuav ua li cas proofread ib multimeter?
Teb: Zoo li lwm yam ntsuas ntsuas, ib lub tshuab multimeter yog ntsuas los ntawm cov chaw tsim khoom ua ntej tawm hauv lub hoobkas. Yog li ntawd, yog tias tsis muaj teeb meem tseem ceeb, thov tsis txhob kho nws randomly. Niaj hnub no, lub taub hau ntawm multimeter feem ntau yog voltmeter, yog li thaum calibrating lwm lub zog, nws yog ib qho tsim nyog yuav tau ua ntej kho DC voltage theem. Qib no yog hu ua theem pib los ntawm kev lag luam sab hauv. Yog tias qib no tsis raug, yuav luag txhua lub iav thiab kev ua haujlwm (tshwj tsis yog rau qib tsis kam) yuav tsis raug. Feem ntau, ib lub multimeter yuav teem ib lub potentiometer (xws li DC voltage ntau) los yog ntau lub potentiometers (xws li qhov kub thiab txias) rau txhua txoj haujlwm, thiab tseem muaj cov potentiometers uas tsis tau teeb tsa (xws li kev tiv thaiv ntau). Yog hais tias muaj ib tug potentiometer, nws yog ib qho yooj yim rau input lub teeb pom kev zoo thiab ces kho nws ncaj qha; Yog tsis muaj potentiometer, nws feem ntau tsis raug. Nyob rau hauv cov ntaub ntawv ntawm misalignment, tej zaum yuav tshwm sim los ntawm kev puas tsuaj rau lub twj paj nruag los yog tsis zoo Circuit Court tiv tauj.
5. Yuav ua li cas txiav txim siab (nrhiav) seb qhov DC voltage range (DCV) ntawm multimeter puas zoo?
Teb: Thaum ua qhov kev xeem, peb 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. Rau kev siv hauv tsev, muaj 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 kev tshawb nrhiav qhov chaw, thiab nyeem cov ntawv nyeem ntawm LCD. Tsuav tus nqi ntsuas nyob ib ncig ntawm lub nominal voltage, nws txaus.,
