Cov ncauj lus kom ntxaws siv cov tshuab multimeters
Mechanical multimeter, tseem hu ua analogue multimeter, pointer multimeter, yog qhov ntxov tshaj plaws ntawm cov khoom siv hluav taws xob, muab faib ua cov ntaub ntawv tiv thaiv, cov ntaub ntawv tam sim no, cov ntaub ntawv voltage.
Ntawm lawv, cov ntaub ntawv tam sim no thiab qhov hluav taws xob tau muab faib ua DC thiab AC cov ntaub ntawv, AC voltage tsis muab faib ua qhov zoo thiab qhov tsis zoo, xws li kuaj pom 220v tsev neeg hloov tam sim no, tsuas yog yuav tsum hu xov tooj mus rau 250v cov ntaub ntawv lossis 500v cov ntaub ntawv, xyuas cov pointer pendulum, daim phiaj thib ob ntawm lub dial rau cov ntaub ntawv tam sim no thiab voltage, 220v siv nyob rau hauv 250 cov ntaub ntawv yuav tsum tau swung mus rau ntawm 250 thiab 200.
500v iav yog saib cov nram qab no 50 lub rooj txoj hauj lwm, 220v yuav tsum nyob rau hauv 20 ntau tshaj 2/3 daim phiaj, thiab ces muab multiplied los ntawm 10, thiab tsis muaj lub rooj digital yog qhov tseeb, tab sis koj tuaj yeem paub tseeb tias qhov voltage yog qhov qub. 1000v iav saib 10 txoj haujlwm, qhov thib peb, 220v hauv 2 me ntsis tom qab, kev nyeem ntawv tuaj yeem muab faib ua 100.
DC voltage yog muab faib ua qhov zoo thiab qhov tsis zoo, nyob rau hauv uas tus cwj mem liab rau qhov zoo, tus cwj mem dub rau qhov tsis zoo, tsis txhob ua yuam kev, txwv tsis pub koob tshuaj tiv thaiv, kev puas tsuaj rau lub rooj ntev. Kev tshawb pom ntawm ob lossis peb-theem raj yog vice versa, lub sijhawm no tus cwj mem dub yog qhov zoo, tus cwj mem liab yog qhov tsis zoo.
Cov ntaub ntawv tam sim no tsis siv ntau, tuaj yeem raug kaw rau hauv Circuit Court, hla.
Cov iav tsis kam siv ntau dua, tab sis kuj yog vim li cas vim li cas lub rooj digital yog me ntsis phem dua li lub pointer multimeter, tab sis qhov yuav tsum tau kho qhov xoom, qhov taw tes no yog qhov kev ntxhov siab tshaj plaws, thiab tsis tshua muaj zog dua li lub rooj digital, tawg thiab tawg. Txawm li cas los xij, kev tshawb pom ntawm cov xaim hluav taws xob thiab cov khoom siv hluav taws xob xau ntau dua li lub rooj digital, ntaus 10k iav, qhov yooj yim daws feem ntau ntawm cov teeb meem xaim hluav taws xob.
Cov txheej txheem ntawm kev siv yog ntaus ib qho kev tiv thaiv qib, thawj xoom, xws li 1k cov ntaub ntawv, qhov twg tus pointer yog multiplied los ntawm 1k tuaj yeem ua tau, lwm cov ntaub ntawv kuj yog tib yam. Yog tias tus taw tes rov qab mus rau xoom, thiab tom qab ntawd ntaus 100 lossis 10 lub zog. Feem ntau ntawm cov pointer meter tsis muaj beeping iav, xaiv 1 iav tuaj yeem txiav txim cov hlau los ntawm kev tawm. Kuj tseem tuaj yeem ntes cov capacitors, diodes, cov raj fais fab thiab lwm yam khoom siv hluav taws xob.
