High voltage nyeem ntawm tus pointer ntawm ib tug multimeter
Qee lub sij hawm peb ntsuas cov hluav taws xob hauv hluav taws xob, vim yog lub ntsuas ntsuas multimeter, cov qauv ntsuas hluav taws xob, kev tiv thaiv sab hauv thiab lwm yam kev ntsuas ntsuas ntsuas thiab lwm yam laj thawj, qee zaum ua rau kev ntsuas qhov tseeb, qhov ntsuas qhov ntsuas hluav taws xob ua haujlwm zaus, cov khoom siv hluav taws xob ua haujlwm. kev ua haujlwm ntawm lub xeev thiab lwm yam, kuj tuaj yeem ua rau kev ntsuas loj dua.
Yog li ntawd, kev ntsuas ntawm qee qhov kev ntsuas ntawm qhov ntsuas ntsuas kuj tseem txhawj xeeb txog qhov xwm txheej dav dav ntawm kev ntsuas qhov ntsuas hluav taws xob hauv Circuit Court thaum xaiv lub ntsuas hluav taws xob ntau dua ntawm qhov ntsuas, uas tuaj yeem txo qhov ntsuas mus rau hauv Circuit Court shunt. Thaum ntsuas lub ntsuas hluav taws xob tam sim no, sim xaiv qhov ntsuas ntsuas sab hauv qis dua, tab sis qhov kev tiv thaiv sab hauv ntawm lub ntsuas tsis tuaj yeem yog xoom, yog li kev tiv thaiv sab hauv ntawm lub ntsuas tom qab koob mus rau hauv ammeter yuav inevitably muab faib rau hauv Circuit Court voltage, yog li. qhov tshwm sim yog tias lub Circuit Court debugging nrog kev ua haujlwm ntawm qhov tsis sib xws. Txhawm rau kom tsis txhob muaj qhov yuam kev saum toj no siv qhov ntsuas tsis ncaj, ntsuas tam sim no thaum ntsuas qhov ntsuas hluav taws xob, ntsuas qhov ntsuas hluav taws xob thaum ntsuas tam sim no. Thaum ntsuas qhov hluav taws xob, thawj zaug ntsuas qhov tsis kam ntawm cov resistor, thiab tom qab ntawd ntsuas qhov tam sim no ntawm lub Circuit Court kom indirectly tau txais qhov ntsuas voltage. Ntsuas qhov voltage thaum ntsuas qhov tam sim no, kuj ntsuas qhov tsis kam ntawm Circuit Court thiab tom qab ntawd ntsuas qhov hluav taws xob poob ntawm qhov resistor kuj tuaj yeem tau txais qhov tseeb ntawm qhov tam sim no. Tau kawg, cov txheej txheem no kuj yuav tsum tau hloov pauv mus rau qhov kev siv ntawm kev txheeb xyuas qhov Circuit Court kuj tseem ceeb heev, ntau dua los ntawm cov tswv yim pom.
Pointer Needle multimeter los ntsuas qhov ntsuas qhov ntsuas hluav taws xob siab, koj tuaj yeem sim qhib lub nraub qaum, nrhiav lub taub hau calibration resistor, feem ntau yog ib qho kev hloov kho tau nyob rau hauv series ntawm lub taub hau, thiab tib lub sij hawm mus nrhiav ib qho zoo ntawm cov multimeter, kho kom pom seb nws puas tuaj yeem calibrated. Yog hais tias qhov sib txawv tsis loj dhau, nws tuaj yeem raug ntsuas ntau dhau.
Yog tias qhov sib txawv loj, siv lub ntsuas hluav taws xob los ntsuas qhov hluav taws xob faib hluav taws xob hauv txhua lub iav kom pom tias muaj qhov kub hnyiab thiab hloov tus nqi.
Yog hais tias tsis muaj ib tug ntawm lawv, ces cov hairspring tej zaum yuav aging thiab khiav tawm ntawm chav. Yuav tsum tau kho qhov sib npaug ntawm cov hairspring quab yuam, uas yog, tus pointer rau xoom thaum lub sab sauv thiab sab hairspring tiv thaiv kev ntxhov siab. Qhov kev ntxhov siab ntau dua, qhov qis dua qhov kev xav ntawm lub taub hau, tab sis nrawm thiab raug zeroing, qhov kev ntxhov siab qis dua, qhov siab dua ntawm lub taub hau, tab sis xoom rov pib ua haujlwm tsis zoo.
Nyob rau hauv rooj plaub uas koj tau hais, yog tias tsis muaj cov cim qhia txog kev puas tsuaj ntawm cov resistor, nws yuav tsum raug xam tias yog ib qho teeb meem nrog kev hloov ntawm lub meter taub hau hairspring.
Cov yam ntxwv uas cuam tshuam rau qhov tseeb ntawm qhov ntsuas ntsuas qhov ntsuas hluav taws xob yog qhov hluav taws xob faib hluav taws xob thiab qhov rhiab heev ntawm lub taub hau 'meter'. Kev nyeem ntawv loj tsis yog qhov yuam kev, feem ntau me me nyeem ntawv, uas yog vim qhov txo qis ntawm lub taub hau meter, cov hlau nplaum hlau attenuation, sib nqus sib nqus nyob rau hauv tus pin hlau yuav ua rau tsis tshua muaj kev nyeem ntawv, pointer stagnation tshwm sim. Nyob rau lub sijhawm no, koj tuaj yeem siv nws tus kheej nplaum los ntxuav tus pin hlau, feem ntau tuaj yeem rov ua cov ntawv nyeem ib txwm.
Qhov kev tiv thaiv sab hauv ntawm multimeter tsis zoo ib yam li qhov loj, tso cai yuam kev hauv +-0.2, txhua lub chaw tsim khoom muaj txhua tus neeg tsim khoom tsim cov tswv yim, pointer multimeter tau pib thim tawm ntawm qib ntawm kev saib xyuas hluav taws xob, tsuas yog tus pointer multimeter. yog intuitive thiab yooj yim, tab sis piv rau lub rooj digital yuav ua tau ntau dua, qhov tseeb ntawm qhov qis dua, vim hais tias lub pointer multimeter yog tsim los ntawm kev tiv thaiv lossis capacitance ntawm txhua qib, diode, triode Control Circuit Court ua tiav, cov multimeter digital. Nws txawv nws yog tsim los ntawm cov digital circuits thiab lub rooj vag circuits, yog li cov ntsuas ntsuas digital nyeem tau ntau dua, raws li cov khoom siv hluav taws xob siab kuj tuaj yeem ntsuas qhov no, xws li kev ntsuas ntawm 220 alternating tam sim no (qhia hauv AC) rau ntsuas nrog AC 1000V iav yog qhov tseeb dua, vim tias nws qhov kev ua haujlwm siab sab hauv kuj tseem ruaj khov dua, ntawm lub tshuab multimeter kuj muaj kev nyab xeeb dua, tib yam MF47 hom multimeter. Tib yam yog MF47 multimeter tab sis nws cov kev tiv thaiv sab hauv tsis zoo ib yam, nws tuaj yeem hais tau tias cov chaw tsim khoom tsim cov tswv yim, tab sis zoo sib xws, DC cov ntaub ntawv ntsuas raws li cov qauv saum toj no, xws li kev ntsuas ntawm DC (qhia hauv DC) 36V lossis ntau dua yuav tsum yog 250V DC cov ntaub ntawv ntsuas yog qhov tseeb tshaj plaws, hauv kev ntsuas qhov ntsuas yuav tsum ua raws li txoj cai uas yog qhov ntsuas ntawm ib qho txiaj ntsig tshaj qhov ntsuas tus nqi ntawm cov ntaub ntawv tsawg kawg yog ob zaug loj! los ntsuas, tam sim no tsim nyob rau hauv Nanjing, MF47 multimeter muaj ntau ntau yam manufacturers xws li Jinchuan, Kewa ntau lawm tab sis lub Circuit Court yog zoo sib xws, txhua tus muaj nws tus kheej tsim cov tswv yim, cov nram qab no yog cov tsos ntawm ob lub rooj, saib rau hauv electronics enthusiasts phooj ywg ntsuas sim, tab sis nco ntsoov tias novice electronics enthusiasts nyob rau hauv kev ntsuas ntawm high-voltage (AC 220V) yuav tsum xyuam xim rau kev nyab xeeb.
