High voltage nyeem ntawm pointer multimeters
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 hluav taws xob 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 qhov siab dua sab hauv ntawm lub ntsuas ntsuas, thiaj li txo qis shunt ntawm qhov ntsuas ntawm lub Circuit Court. 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 hluav taws xob, ntsuas tam sim no thaum ntsuas qhov hluav taws xob. Thaum ntsuas qhov ntsuas hluav taws xob, ua ntej ntsuas qhov 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, thiab ntau ntxiv los ntawm qhov kev pom zoo.
Pointer multimeter los ntsuas qhov ntsuas qhov ntsuas hluav taws xob yog siab, koj tuaj yeem sim qhib lub nraub qaum, nrhiav lub taub hau ntawm qhov ntsuas qhov ntsuas qhov ntsuas, feem ntau yog ib qho kev hloov kho tau nyob rau hauv series ntawm lub taub hau ntawm lub rooj, thaum tab tom nrhiav ib qho zoo ntawm digital multimeter, kho nws kom pom tias nws tuaj yeem kho tau. 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, ces cov hairspring tej zaum yuav laus thiab tsis tshuav. 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 cov ntaub ntawv 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 ntawm meter head hairspring hloov.
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 ua yuam kev, feem ntau me me nyeem ntawv, uas yog vim qhov txo qis ntawm lub taub hau ntawm lub meter, hlau nplaum attenuation, sib nqus sib nqus nyob rau hauv tus pin hlau yuav ua rau kev nyeem qis, 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 lub 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 cov 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, transistor 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 Kev 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 lub MF47 hom multimeter, qhov tseeb yog qis dua li ntawm cov ntsuas digital. 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 yuav tsum tau 250V DC cov ntaub ntawv ntsuas yog qhov tseeb tshaj plaws, nyob rau hauv qhov kev ntsuas ntawm qhov ntsuas yuav tsum ua raws li txoj cai uas yog qhov ntsuas ntawm ib qho nqi tshaj qhov ntsuas ntawm 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, tab tom nrhiav rau cov phooj ywg hluav taws xob enthusiasts. ntsuas sim, tab sis nco ntsoov tias novice electronics enthusiasts nyob rau hauv kev ntsuas ntawm high-voltage (AC 220V) yuav tsum tau them sai sai rau kev ruaj ntseg ntawm.
