Txoj hauv kev kho digital multimeters
Cov cuab yeej siv digital muaj qhov nkag siab zoo thiab raug, thiab lawv cov ntawv thov muaj nyob hauv yuav luag txhua lub lag luam. Txawm li cas los xij, vim muaj ntau yam hauv qhov tsis ua haujlwm, thiab qhov randomness ntawm cov teeb meem tau ntsib yog qhov loj, tsis muaj ntau txoj cai los ua raws, thiab kev kho yog nyuaj. Yog li ntawd, kuv tau txheeb xyuas qee qhov kev kho kho uas tau sau ntau xyoo ntawm kev ua haujlwm rau kev siv ntawm cov npoj yaig koom nrog hauv txoj haujlwm no.
1. Kho txoj kev
Thaum nrhiav kev ua txhaum, koj yuav tsum pib los ntawm sab nraud thiab tom qab ntawd sab hauv, ua ntej yooj yim thiab tom qab ntawd nyuaj, tawg tag nrho rau hauv qhov chaw, thiab ua kom tawg ntawm cov ntsiab lus tseem ceeb. Cov txheej txheem tuaj yeem kwv yees faib ua pawg hauv qab no:
1. Tus txheej txheem sensory ncaj qha txiav txim qhov ua rau ntawm qhov txhaum los ntawm kev nkag siab. Los ntawm kev tshuaj xyuas qhov muag, nws tuaj yeem pom xws li kev sib txuas, desoldering, luv luv Circuit Court, tawg fuse tube, burnt tawm Cheebtsam, mechanical puas, thiab tooj liab ntawv ci warping ntawm lub luam Circuit Court. Koj tuaj yeem kov qhov kub thiab txias ntawm cov roj teeb, cov resistors, transistors, thiab kev sib xyaw ua ke, thiab koj tuaj yeem xa mus rau daim duab kos duab kom paub seb yog vim li cas qhov kub tsis txawv txav. Tsis tas li ntawd, los ntawm txhais tes, koj tuaj yeem tshawb xyuas seb cov khoom puas yog xoob, seb cov pins sib xyaw ua ke tau ruaj khov, thiab seb qhov hloov pauv hloov yog daig; koj tuaj yeem hnov thiab hnov txog seb puas muaj suab txawv txav thiab tsw.
2. Txoj kev ntsuas hluav taws xob: ntsuas seb qhov ua haujlwm voltage ntawm txhua lub ntsiab lus tseem ceeb yog qhov qub, thiab tshawb xyuas qhov txhaum taw tes sai. Xws li ntsuas qhov ua haujlwm voltage thiab siv voltage ntawm A / D converter.
3. Short-circuit method Nyob rau hauv txoj kev tshawb xyuas A/D converter tau hais los saum no, feem ntau siv txoj kev luv-circuit. Txoj kev no feem ntau siv thaum kho cov twj tsis muaj zog thiab micro-hluav taws xob.
4. Txoj kev qhib Circuit Court Disconnect qhov tsis txaus ntseeg ntawm tag nrho lub tshuab lossis chav tsev hauv Circuit Court. Yog hais tias qhov txhaum ploj mus, nws txhais tau hais tias qhov txhaum nyob rau hauv lub disconnected Circuit Court. Cov qauv no feem ntau haum rau qhov xwm txheej uas muaj qhov luv luv hauv Circuit Court.
5. Kev ntsuas kev tivthaiv Thaum qhov kev ua txhaum raug txo mus rau ib qho chaw lossis ob peb yam, nws tuaj yeem ntsuas hauv online lossis offline. Yog tias tsim nyog, hloov nws nrog qhov zoo. Yog tias qhov txhaum ploj mus, cov khoom tawg.
6. Kev cuam tshuam txoj kev Siv tib neeg lub cev induced voltage raws li cov teeb liab cuam tshuam los soj ntsuam cov kev hloov ntawm cov kua siv lead ua kua zaub, uas yog feem ntau siv los xyuas seb lub input Circuit Court thiab cov zaub ib feem puas lawm.
