Cov hlau twg kub yog tias ob lub xov hlau yog tib xim?

Ua haujlwm nrog cov xov hlau nyob yog ob qho tib si muag thiab pheej hmoo ua haujlwm, thiab txhua tus kws kho hluav taws xob yuav qhia koj tias nws tseem ceeb npaum li cas kom paub qhia cov xov hlau nyob hauv nruab nrab. Koj tsis xav kom lawv sib tov lossis nws tuaj yeem ua rau txhua yam teeb meem, feem ntau yog luv luv Circuit Court. Txawm hais tias cov xov hlau feem ntau yog xim coded rau kev txheeb xyuas yooj yim, qee zaum lawv tsis yog. Qhov no tej zaum yuav yog vim qhov kev txiav txim siab tsis zoo hauv koj lub tsev, lossis ib qho khoom siv uas cov chaw tsim khoom tau xaiv tib lub xim hlau.

Txawm li cas los xij, koj yuav tsum paub seb txoj kev twg koj tuaj yeem siv los txheeb xyuas cov xaim kub thaum ob lub xov tooj nquag thiab nruab nrab yog tib xim. Hauv tsab xov xwm no, peb yuav qhia koj raws nraim li cas koj tuaj yeem ua tau qhov no, yog li nyeem ntxiv.

Thaum soj ntsuam nrog cov xov hluav taws xob ntawm tib xim, txoj hauv kev zoo tshaj plaws los txiav txim siab qhov twg yog qhov kub thiab qhov nruab nrab yog siv lub multimeter zoo. Txuas nws mus rau cov xaim raws li cov chaw tsim khoom cov lus qhia thiab cov xaim nrog qhov hluav taws xob hauv nws yuav yog cov hlau kub.

Nkag siab qhov sib txawv ntawm cov xov hlau kub thiab cov xov hlau nruab nrab

Ib lo lus yooj yim tsom xam yuav qhia rau koj tias cov hlau kub yog ib qho uas ua haujlwm ntawm qhov kub siab tshaj li niaj zaus. Thaum lawv tsis ua haujlwm, txhua cov xov hlau yog cov xov hlau txias kom txog thaum koj khiav hluav taws xob los ntawm lawv. Kev siv hluav taws xob tsim hluav taws xob ua kom sov, thiab cov xaim uas cov hluav taws xob dhau los ua kom sov. Qhov no yog vim li cas nyob hlau kuj hu ua kub hlau. (1)

Nyob rau hauv ib tug raug ib theem system, koj yuav muaj ob tug xov tooj cua khiav los ntawm lub system, ib tug ntawm cov uas nqa cov hluav taws xob. Qhov no yog cov hlau uas yuav txuas koj qhov hloov mus rau cov khoom siv xws li lub teeb, kiv cua, lossis lwm yam khoom siv hluav taws xob. Muaj ob qhov xwm txheej uas koj feem ntau pom thaum ua haujlwm nrog cov xov hlau xim. Lawv tuaj yeem yog liab thiab dub lossis dub thiab dawb xov hlau. Hauv thawj kis, cov hlau kub feem ntau yog liab, whereas, nyob rau hauv qhov thib ob scenario nws feem ntau yog cov hlau kub dub thiab cov hlau dawb yog qhov nruab nrab.

Txawm li cas los xij, yog tias ob qho tib si muaj xim hlau tib yam, ces nws tuaj yeem ua rau tsis meej pem rau koj los txiav txim siab seb lub xov tooj hluav taws xob twg yog qhov kub thiab qhov twg yog ntuj. Luckily, muaj ntau txoj hauv kev uas koj tuaj yeem siv los txheeb xyuas cov xov hlau kom zoo kom koj tsis txhob txuas lawv mus rau qhov hluav taws xob thiab cov khoom siv tsis raug.

Tshawb xyuas seb cov hlau twg kub thaum ob qho tib si xim

Koj tuaj yeem tshawb xyuas seb lub xov tooj hluav taws xob puas nyob lossis nruab nrab siv ntau txoj hauv kev. Txawm li cas los xij, feem ntau ntawm cov txheej txheem muaj muaj qee yam kev tawm tswv yim kev ruaj ntseg. Qhov no txhais tau hais tias tus neeg nyiam nyiam yuav tsum tsis txhob siv lawv, vim qhov no tuaj yeem ua rau luv luv lossis, qhov phem tshaj plaws, kev tuag ntawm tus neeg cuam tshuam nrog cov xov hlau, vim tias qhov hluav taws xob siab yog qhov tuag taus.

Yog li ntawd, peb yuav piav qhia txog cov txheej txheem nkaus xwb uas muaj kev nyab xeeb siv thiab dav lees paub los ntawm nws qhov xwm txheej.

Txoj kev peb tab tom tham txog yog siv lub multimeter. Kev paub siv nws tuaj yeem pab tau zoo heev hauv ntau qhov xwm txheej. Hauv qhov no, nws tuaj yeem yooj yim txiav txim siab uas yog qhov twg los ntawm kev ua hluav taws xob los ntawm nws cov sensors.

Xyuas kom koj paub tias lub tshuab multimeter ua haujlwm li cas ua ntej koj txiav txim siab siv nws los ntsuas cov xov hlau kub thiab ntuj.

Tam sim no koj muaj lub tshuab ua haujlwm multimeter, koj yuav tsum ua raws li cov kauj ruam hauv qab no txhawm rau txheeb xyuas cov hlau kub thiab cov xaim nruab nrab.

1. Teem lub multimeter rau AC voltage hom, uas feem ntau yog sau npe raws li HVAC, VAC, los yog 200V. Qhov no yuav txawv nyob ntawm seb lub teb chaws koj nyob thiab hom koj siv. Nco ntsoov kom tau txais lub ntsuas ntsuas digital zoo kom koj tsis txhob yuam kev luv luv thiab ua rau nws puas.
2. Kov cov hlau kuaj liab ntawm lub multimeter mus rau ib qho ntawm cov xov hlau, thiab tom qab ntawd kov cov xim dub rau ntawm lub qhov (socket) vaj tse, uas feem ntau yog ua los ntawm cov hlau. Cov ntaub ntawv yuav ua haujlwm hauv qhov chaw nres tsheb hauv av, uas txhais tau hais tias sai li sai tau thaum koj txuas mus rau ib lub xov hlau nyob, qhov tam sim no yuav ntws mus rau hauv av thiab yuav tsis ua mob rau lub multimeter lossis koj.
3. Saib cov ntawv nyeem tam sim no tso tawm ntawm koj lub multimeter. Yog tias koj pom qhov kev nyeem ntawv ntawm 0, lossis tus nqi ze rau nws, ces cov xaim uas koj tau kov nrog lub xov tooj liab yog qhov nruab nrab. Txawm li cas los xij, yog tias tus nqi ntawm koj lub multimeter yog nyob ib ncig ntawm 100-120 volts, ces koj tau kov cov hlau nyob nrog koj txhais tes. Tus nqi no tseem tuaj yeem nyob nruab nrab ntawm 200 thiab 240 nyob ntawm qhov kev tswj xyuas hluav taws xob hauv koj lub tebchaws. (2)
4. Muab ob npaug rau xyuas cov xov hlau kom paub tseeb tias nws yog ib qho twg, thiab tom qab ntawd kos cov hlau nyob los ntawm kev txuas ib daim kab xev me me rau nws. Koj tuaj yeem siv lwm txoj hauv kev, tab sis nco ntsoov tias tsis muaj leej twg ua rau cov hlau puas.

Summing txog

Hluav taws xob yog qhov txaus ntshai, thiab koj yeej tsis tau txais lub sijhawm thib ob los kho koj qhov kev ua yuam kev yog tias koj ntsia ib yam dab tsi. Tias yog vim li cas nws tseem ceeb heev kom paub tias cov xov hlau twg muaj zog thiab qhov twg yog qhov nruab nrab. Kev sib txuas tsis raug tuaj yeem ua rau txhua yam teeb meem uas koj tsis xav pom. Ua raws li peb cov lus qhia ua tib zoo thiab nco ntsoov ua raws li tag nrho cov lus pom zoo txog kev nyab xeeb.

Ua tib zoo saib qee qhov ntawm peb cov lus hauv qab no.

• Yuav ua li cas los txiav txim qhov nruab nrab hlau nrog ib tug multimeter
• Yuav ua li cas paub qhov txawv qhov tsis zoo ntawm ib qho zoo
• Yuav ua li cas nrhiav tau ib tug luv luv Circuit Court nrog ib tug multimeter

tswv yim pom zoo

(1) Hluav taws xob conductivity - https://www.scientificamerican.com/article/

dab tsi-materials-conduct-electricity/

(2) Kev cai voltage - https://www.sciencedirect.com/topics/engineering/

kev cai voltage