Kev siv digital multimeter, kev siv digital multimeter txoj cai
Nkag siab cov cuab yeej ntsuas cov phooj ywg yuav paub: feem ntau zoo tib yam multimeter feem ntau yog siv los ntsuas qhov ntsuas tsis kam, voltage, tam sim no, muaj cov multimeters kuj siv tau los ntsuas zaus, transistor, kub thiab lwm yam tsis zoo.
Ntsuam xyuas kev nkag siab ntawm qhov ntsuas hluav taws xob
Kev ntsuas hluav taws xob tuaj yeem muab faib ua qhov ntsuas DC voltage thiab ntsuas AC voltage, thaum ntsuas thiab ntsuas tam sim no muab faib ua kev ntsuas thiab ntsuas DC tam sim no thiab ntsuas thiab ntsuas AC tam sim no. Ua ntej tshaj plaws, thaum koj ntsuas lub zog hluav taws xob hluav taws xob yuav tsum tau ceev faj, ntsuas qhov hluav taws xob ua ntej ntawm txhua yam koj yuav tsum tau txiav txim siab yog qhov koj sim yog qhov hluav taws xob AC lossis DC voltage, ntawm no kuv xav qhia rau koj paub txog kev nkag siab zoo, Cov neeg pej xeem yog AC, txawm li cas los xij, cov xov tooj ntawm tes thiab lwm cov chargers thiab lwm yam khoom siv hluav taws xob ntau yog DC voltage, nyob rau hauv txoj kev no, thaum qhov kev ntsuam xyuas muaj teeb meem me ntsis, yog li kev ntsuas yuav tsum paub meej tias nws yog AC lossis DC ua ntej li ntawd ua ntej koj. Kev ntsuas, koj yuav tsum paub qhov txawv ntawm AC thiab DC, thiab yog tias koj tsis paub tias qhov hluav taws xob puas yog qhov hluav taws xob tiag tiag lossis tam sim no thaum koj ntsuas, ces koj yuav tsum muab tso rau hauv AC iav yog tias muaj teeb meem ntau tshwm sim thaum kuaj. Lub sijhawm no koj yuav tsum yog los ntawm cov iav loj tshaj plaws mus rau cov iav me me maj mam hloov pauv hloov pauv, kom txog rau thaum koj xav tau tus nqi, tsuas yog pib siv cov ntsuas ntsuas no, qhov tseeb theem tsis tseem ceeb heev, cov lus nug tseem ceeb koj yuav tsum nco ntsoov, tus yuam sij yog kom pom seb qhov kev xaiv iav yog qhov tseeb thiab qhov multimeter lub rooj jack zoo ib yam, yog tias koj ntsuas qhov voltage tsis ceev faj, yuav muab tso rau hauv qhov tam sim no ntawm tus cwj mem jack, ces koj ua tiav, vim tias kev ntsuas tsis raug yuav ua rau lub iav tam sim no. , tam sim no yog tib yam. Vim tias kev sim tsis raug yuav ua rau cov iav tam sim no yuav tsum hlawv. Muaj kev sim ua tiav multimeter, txhawm rau txhim kho tus cwj pwm zoo, txhua zaus tom qab siv multimeter yuav tsum tau hloov mus rau AC voltage iav * lub iav loj, lub rooj cwj mem yuav tsum tau muab tso rau hauv qhov hluav taws xob qhov hluav taws xob, tus cwj pwm zoo no yog qhov zoo tshaj plaws los tsim. , nyob rau yav tom ntej ntawm cov cwj pwm ua haujlwm kuj yog ib qho kev pab zoo, txwv tsis pub. yog them tus nqi kawm ntawv.
