Dab tsi yog cov kev daws teeb meem dav dav ntawm digital multimeter?
Teb: Cov multimeter yog ib hom kev ntsuas ntsuas uas siv lub hauv paus ntsiab lus ntawm analog-rau-digital hloov dua siab tshiab los hloov cov ntaub ntawv ntsuas mus rau hauv cov lej digital thiab tso saib cov txiaj ntsig ntsuas hauv daim ntawv digital. Piv nrog rau pointer multimeter, digital multimeter muaj qhov zoo ntawm high precision, kev kub ceev, loj input impedance, cov zaub, nyeem kom raug, muaj zog tiv thaiv kev cuam tshuam muaj peev xwm thiab siab ntsuas automation, yog li nws yuav tsum tau siv dav. Txawm li cas los xij, yog tias nws siv tsis raug, nws yuav yooj yim ua rau tsis ua haujlwm.
Kev daws teeb meem ntawm digital multimeter feem ntau yuav tsum pib nrog lub hwj chim mov. Piv txwv li, tom qab tig lub hwj chim, yog tias lub LCD tsis tshwm sim, thawj zaug xyuas seb qhov hluav taws xob ntawm 9V laminated roj teeb tsawg dhau lawm; Txawm hais tias lub roj teeb ua haujlwm raug txiav tawm. Nrhiav kev txhaum yuav tsum ua raws li qhov kev txiav txim ntawm "los ntawm sab hauv mus rau sab nraud, los ntawm yooj yim mus rau nyuaj". Kev daws teeb meem ntawm digital multimeter tuaj yeem ua raws li hauv qab no:
(1) Kev kuaj pom pom:
Koj tuaj yeem kov seb qhov kub ntawm lub roj teeb, resistor, transistor thiab integrated block yog siab dhau ntawm tes. Yog tias lub roj teeb uas tau nruab tshiab yog kub, nws txhais tau hais tias lub Circuit Court yuav luv luv. Tsis tas li ntawd, koj yuav tsum tau soj ntsuam seb lub Circuit Court puas lawm, soldered, mechanically puas, thiab lwm yam.
(2) kuaj xyuas qhov ua haujlwm voltage ntawm txhua qib:
Txhawm rau kuaj xyuas qhov ua haujlwm voltage ntawm txhua qib thiab sib piv nrog tus nqi ib txwm, qhov tseeb ntawm qhov siv hluav taws xob yuav tsum tau lees paub ua ntej, thiab nws yog qhov zoo tshaj plaws los siv cov multimeter digital ntawm tib tus qauv lossis zoo sib xws los ntsuas thiab sib piv.
(3) waveform tsom xam:
Saib xyuas qhov voltage waveform, amplitude, lub sij hawm (frequency) ntawm txhua lub ntsiab lus tseem ceeb ntawm Circuit Court nrog ib qho hluav taws xob oscilloscope. Piv txwv li, sim seb lub moos oscillator pib vibrate thiab seb qhov oscillation zaus yog 40 kHz. Yog hais tias lub oscillator tsis muaj cov zis, nws txhais tau hais tias lub internal inverter ntawm TSC7106 puas, los yog lub sab nraud Cheebtsam yog qhib. Saib xyuas tias qhov waveform ntawm {21st} tus pin ntawm TSC7106 yuav tsum yog 50 Hz square nthwv dej, txwv tsis pub, nws yuav yog qhov kev puas tsuaj ntawm sab hauv 200 zaus faib.
(4) Kev ntsuas qhov ntsuas qhov ntsuas:
Rau cov khoom nyob rau hauv qhov kev ua txhaum ntau, kev ntsuas hauv online lossis kev ntsuas offline yuav tsum tau ua, thiab qhov ntsuas qhov ntsuas yuav tsum raug txheeb xyuas. Thaum ntsuas qhov kev tawm tsam hauv online, qhov cuam tshuam ntawm cov khoom sib txuas hauv qhov sib npaug yuav tsum raug txiav txim siab.
(5) Kev daws teeb meem zais:
Kev txhaum implicit hais txog qhov txhaum thaum qhov txhaum raug muab zais, thiab qhov ntsuas qhov zoo lossis qhov tsis zoo. Qhov kev ua txhaum no yog qhov nyuaj, thiab cov laj thawj feem ntau suav nrog kev sib txuas virtual ntawm cov pob qij txha, xoob ntawm cov khoom sib txuas, kev sib cuag tsis zoo ntawm kev hloov pauv hloov, kev ua haujlwm tsis ruaj khov ntawm cov khoom, thiab kev tawg txuas ntxiv ntawm cov hlau lead. Tsis tas li ntawd, nws kuj suav nrog qee yam sab nraud. Piv txwv li, ambient kub yog siab dhau lawm, cov av noo siab dhau lawm los yog muaj cov teeb liab muaj zog cuam tshuam nyob ze.
