Multimeter txhawm rau nrhiav cov kab tsis raug ntawm qhov ntsuas hluav taws xob
Kev ntsuas hluav taws xob siv lub tshuab ntsuas hluav taws xob txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau kev sim
Txoj cai ntawm kev kuaj xyuas voltage
Los ntawm kev kuaj xyuas qee cov ntsiab lus hauv Circuit Court voltage lossis tsis, loj lossis me, txhawm rau txiav txim siab qhov ua rau muaj qhov hloov pauv, qhov laj thawj yog qhov ua rau tsis ua haujlwm.
Circuit Court nyob rau hauv ib txwm ua hauj lwm, txhua feem ntawm qhov ua hauj lwm voltage tus nqi yog tshwj xeeb, thaum lub Circuit Court muaj ib tug qhib Circuit Court, luv luv Circuit Court hloov, thiab lwm yam., voltage tus nqi yog khi kom muaj ib tug sib xws hloov, voltage check txoj kev yog mus kuaj xyuas qhov kev hloov no, thiab tom qab ntawd txheeb xyuas.
Voltage soj ntsuam txoj kev ntawm cov khoom ntsuas
Cov hluav taws xob hluav taws xob muaj cov yam ntxwv tseem ceeb hauv qab no.
1, AC lub zog hluav taws xob, 220V, 50Hz.
2, AC voltage tsawg, xws li los ntawm ob peb volts mus rau kaum tawm volts.
3, DC kev khiav hauj lwm voltage, tej zaum yuav yog ob peb volts mus rau kaum tawm volts, tej zaum yuav 175,000 volts los yog ntau dua (cov khoom siv yees duab yuav siab li kaum tawm txhiab volts).
4, suab teeb liab voltage, ob peb millivolts rau kaum ntawm volts.
Kev ntsuas ntawm AC voltage
1, ntsuas AC mains voltage
Multimeter hloov kho rau AC 750V iav (sib txawv multimeter iav tej zaum yuav txawv), ntsuas lub hwj chim transformer thawj winding xaus, yuav tsum muaj 220V, yog tsis yog, xyuas seb lub hwj chim jack tsis txuas los yog tsis muaj hwj chim.
2, ntsuas AC tsawg voltage
Xaiv qhov tsim nyog ntau yam ntawm multimeter AC voltage iav, ntsuas qhov tso zis voltage ntawm ob sab ntawm lub hwj chim transformer, nyob rau hauv cov ntaub ntawv ntawm kev lees paub tias qhov input voltage yog ib txwm, yog tias tsis muaj qhov tso zis hluav taws xob tsawg, feem ntau ntawm lub hwj chim transformer thawj winding yog qhib-circuit, muaj ib tug me me tshwm sim uas lub thib ob winding tej zaum yuav raug txiav.
Kev ntsuas ntawm DC voltage
Kev ntsuas ntawm DC voltage, xaiv qhov tsim nyog DC voltage iav, dub cwj mem av, liab cwj mem txais kev ntsuas taw tes, raws li qhov ntsuas tau.
1, lub tshuab DC voltage thaum tsis muaj load dua li thaum ua hauj lwm ob peb volts siab dua, lub zog mov kuj ntau dua.
2, lub tshuab nyob rau hauv lub rectifier Circuit Court tso zis DC voltage yog siab tshaj, raws li RC lim, decoupling Circuit Court maj mam txo.
3, polarized electrolytic capacitor voltage, qhov zoo kawg yog siab tshaj qhov tsis zoo kawg.
4, yog tias lub capacitor kawg ntawm qhov hluav taws xob yog xoom, tsuav yog lub Circuit Court muaj DC ua haujlwm, nws txhais tau hais tias lub capacitor tau luv luv. DC voltage ntawm ob qho kawg ntawm inductor yuav tsum nyob ze rau xoom, txwv tsis pub nws yog qhov qhib-circuit txhaum.
5, lub Circuit Court muaj DC kev khiav hauj lwm voltage, tus resistor yuav tsum muaj ib tug voltage poob ntawm ob hnub, txwv tsis pub lub resistor Circuit Court yog faulty.
6, DC voltage ntawm ob kawg ntawm inductor tsis yog xoom, qhia tias inductor qhib.
Voltage check method nta
1, thaum ntsuas qhov ntsuas hluav taws xob, lub tshuab hluav taws xob sib txuas sib txuas ua ke, tsis tas yuav tsum muaj cov khoom siv, cov khoom siv hluav taws xob ua kom muaj kev hloov kho, yooj yim rau kev khiav lag luam
2, Cov ntaub ntawv voltage hauv Circuit Court yog txhim khu kev qha rau kev txiav txim ntawm qhov txhaum.
3, Kev ntsuas qhov ntsuas kom meej thiab meej yuav tsum muaj cov ntaub ntawv muaj feem cuam tshuam rau hauv daim duab kos duab ntawm tag nrho lub tshuab.
Thib rau, qhov Scope ntawm daim ntawv thov ntawm txoj kev soj ntsuam voltage
1, AC Circuit Court tsis ua haujlwm
2, DC Circuit Court tsis ua haujlwm
3, lwm yam Circuit Court txhaum
