Yuav ua li cas kho qhov yuam kev zais hauv digital multimeters
Muaj ntau hom digital multimeters nrog ntau hom kev siv. Txawm li cas los xij, tom qab tag nrho, multimeters yog hom khoom siv hluav taws xob. Qee qhov teeb meem me tuaj yeem tshwm sim thaum siv. Nov yog qee qhov kev daws teeb meem.
1. Kev tsom xam Waveform.
Siv lub tshuab hluav taws xob oscilloscope los soj ntsuam qhov voltage waveform, amplitude, lub sij hawm (frequency), thiab lwm yam ntawm txhua qhov tseem ceeb hauv Circuit Court. Piv txwv li, sim seb lub moos oscillator pib oscillate thiab seb qhov oscillation zaus yog 40kHz. Yog hais tias lub oscillator tsis muaj cov zis, nws txhais tau hais tias lub internal inverter ntawm TSC7106 puas, los yog sab nraud tivthaiv yuav qhib Circuit Court. Saib xyuas tias lub waveform ntawm tus pin {21} ntawm TSC7106 yuav tsum yog 50Hz square wave. Txwv tsis pub, sab hauv 200 zaus faib yuav raug puas tsuaj.
2. Ntsuas qhov ntsuas qhov ntsuas.
Rau cov khoom nyob rau hauv qhov kev ua txhaum ntau, ua qhov ntsuas hauv online lossis offline thiab txheeb xyuas qhov ntsuas qhov tseem ceeb. Thaum ntsuas kev tiv thaiv hauv online, qhov cuam tshuam ntawm cov khoom sib txuas ua ke nrog nws yuav tsum tau txiav txim siab.
3. Kev daws teeb meem zais.
Kev ua txhaum zais yog hais txog qhov txhaum uas tshwm sim thiab ploj mus, thiab qhov ntsuas tau zoo thiab qhov tsis zoo qee zaum. Hom kev ua tsis tiav no yog qhov nyuaj. Cov laj thawj feem ntau muaj xws li cov pob qij txha tsis muaj zog, cov pob qij txha xoob, cov khoom sib txuas tsis zoo, kev sib cuag tsis zoo ntawm kev hloov pauv, kev ua haujlwm tsis ruaj khov, thiab kev tawg txuas ntxiv ntawm cov hlau lead. Tsis tas li ntawd, nws kuj suav nrog qee yam sab nraud. Xws li qhov kub thiab txias ambient siab dhau lawm, cov av noo siab dhau los yog muaj qhov cuam tshuam muaj zog cuam tshuam cov teeb liab nyob ze, thiab lwm yam.
4. Kev tshuaj xyuas qhov tshwm sim.
Koj tuaj yeem kov lub roj teeb, resistor, transistor, thiab kev thaiv nrog koj txhais tes kom pom tias qhov kub thiab txias siab dhau lawm. Yog tias lub roj teeb uas tau nruab tshiab dhau los ua kub, lub voj voog yuav luv luv. Nyob rau hauv tas li ntawd, lub Circuit Court yuav tsum tau soj ntsuam rau disconnection, desoldering, mechanical puas, thiab lwm yam.
5. Tshawb xyuas qhov ua haujlwm voltage ntawm txhua qib.
Txhawm rau txheeb xyuas qhov ua haujlwm voltage ntawm txhua qhov taw tes thiab sib piv nrog tus nqi ib txwm, koj yuav tsum xub xyuas qhov tseeb ntawm qhov siv hluav taws xob. Nws yog qhov zoo tshaj plaws los siv digital multimeter ntawm tib tus qauv lossis ib qho zoo sib xws rau kev ntsuas thiab sib piv.
