Cov txheej txheem rau tshem tawm qhov yuam kev zais hauv Digital Multimeters
Muaj ntau ntau hom lo lus multimeter thiab lawv daim ntawv thov ntau kuj yog dav heev, tab sis tom qab tag nrho, lub multimeter yog ib qho ntawm cov khoom siv hluav taws xob, thiab tej zaum yuav muaj qee qhov teeb meem me me thaum siv. Nov yog qee cov lus qhia rau 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, yog lub moos oscillator nyob rau thiab oscillation zaus yog 40kHz. Yog hais tias lub oscillator tsis muaj cov zis, nws qhia tau hais tias lub internal inverter ntawm TSC7106 puas, los yog tej zaum yuav yog vim ib tug qhib Circuit Court nyob rau hauv sab nraud Cheebtsam. Lub waveform ntawm {21} tus pin ntawm TSC7106 yuav tsum yog 50Hz square nthwv dej, txwv tsis pub nws yuav yog vim kev puas tsuaj rau sab hauv 200 zaus faib.
2. Ntsuas qhov ntsuas qhov ntsuas.
Rau cov khoom nyob rau hauv qhov kev ua txhaum ntau, parameter qhov tseem ceeb yuav tsum tau txheeb xyuas rau kev ntsuas hauv online lossis offline. Thaum ntsuas kev tiv thaiv online, qhov cuam tshuam ntawm cov khoom sib txuas nrog nws yuav tsum tau txiav txim siab.
3. Kev daws teeb meem zais.
Implicit faults hais txog qhov ua txhaum uas tshwm sim thiab ploj mus ib ntus, thiab qhov ntsuas qee zaum zoo lossis phem. Hom kev ua txhaum no yog qhov nyuaj heev, thiab cov laj thawj feem ntau suav nrog cov pob qij txha tau xoob, xoob txuas, kev sib cuag tsis zoo ntawm kev hloov pauv hloov, kev ua haujlwm tsis ruaj khov, thiab txuas txuas txuas ntxiv ntawm cov coj. Tsis tas li ntawd, nws kuj suav nrog cov xwm txheej tshwm sim los ntawm lwm yam. Yog hais tias qhov kub thiab txias ambient siab dhau lawm, cov av noo siab dhau lawm, los yog muaj cov teeb liab cuam tshuam muaj zog nyob ze, thiab lwm yam.
4. Kev tshuaj xyuas qhov muag.
Koj tuaj yeem kov qhov kub thiab txias ntawm lub roj teeb, resistor, transistor, thiab kev thaiv nrog koj txhais tes kom pom tias nws siab dhau lawm. Yog tias lub roj teeb uas tau nruab tshiab sov, nws qhia tau hais tias lub voj voog yuav luv luv. Tsis tas li ntawd, nws tseem yuav tsum tau saib xyuas seb lub Circuit Court puas raug kaw, desoldered, mechanically puas, thiab lwm yam.
5. Tshawb xyuas qhov ua haujlwm voltage ntawm txhua qib.
Tshawb xyuas qhov ua haujlwm voltage ntawm txhua qhov chaw thiab sib piv nrog tus nqi ib txwm muaj. Ua ntej, xyuas kom meej qhov tseeb ntawm qhov kev siv hluav taws xob, zoo dua yog siv digital multimeter ntawm tib tus qauv lossis zoo sib xws rau kev ntsuas thiab sib piv.
