Dab tsi yog qhov txawv ntawm multimeter thiab oscilloscope
Ob leeg multimeters thiab oscilloscopes feem ntau siv cov cuab yeej. Multimeters thiab oscilloscopes yog tag nrho cov paub txog hluav taws xob engineers. Nws tuaj yeem hais tias nws yog ib qho cuab yeej tseem ceeb rau R & D, debugging thiab txij nkawm. Tau kawg, kev ua haujlwm ntawm multimeter thiab oscilloscope yog txawv kiag li.
multimeter
Muaj ob hom multimeters: hom pointer thiab hom digital; hom pointer tau pib raug tshem tawm, thiab tam sim no cov digital multimeter tau pib siv.
Lub multimeter tuaj yeem siv los ntsuas qhov tsis kam, AC, DC voltage, AC, DC tam sim no, diode, capacitance, zaus, thiab lwm yam. Lub multimeter yog qhov yooj yim thiab siv tau yooj yim. Ntev npaum li lub iav raug hu mus rau cov iav ua haujlwm uas yuav tsum tau ntsuas, qhov ntsuas tuaj yeem ua tau.
Thaum siv multimeter los ntsuas qhov tam sim no, koj yuav tsum tau them nyiaj tshwj xeeb. Txhawm rau ntsuas qhov tam sim no, koj yuav tsum txuas lub multimeter mus rau hauv Circuit Court nyob rau hauv series, thiab koj yuav tsum tau ntxig cov liab xeem coj mus rau hauv lub jack ntawm qhov tsim nyog ntau yam. Yog tias qhov tam sim no tshaj qhov ntau, lub fuse ntawm multimeter yuav hlawv.
oscilloscope
Oscilloscopes thiab multimeters txawv, multimeters tsuas tuaj yeem tso saib qhov ntsuas ntsuas. Lub oscilloscope tuaj yeem ua kom nrawm, txuas ntxiv ntsuas ntawm lub teeb liab, thiab npaj nws ua ib qho nkhaus thiab tso rau ntawm qhov screen.
Oscilloscopes tau siv dav. Cov teeb liab uas pom tsis pom ntawm qhov muag liab qab tuaj yeem hloov mus rau hauv cov duab. Peb tuaj yeem txheeb xyuas qhov kev hloov pauv ntawm ntau lub teeb liab thiab cov ntaub ntawv raws li ntsuas lub teeb liab waveform.
Muaj ntau lub luag haujlwm thiab cov ntawv qhia zaub mov ntawm oscilloscope, uas yuav tsum muaj qee yam kev paub txog kev siv.
Muaj ob hom multimeters: analog thiab digital.
Lub pointer ntawm analog saib swings hloov tau yooj yim, ua kom yooj yim los txiav txim qhov kev hloov hauv Circuit Court.
Lub ntsuas hluav taws xob digital muaj cov lus teb ceev ceev, kev nyeem ntawv yooj yim thiab me me parallax.
Lub multimeter ntse ntsuas DC cov teeb liab thiab qis zaus AC cov cim qhia kom raug ntau dua. Rau feem ntau AC teeb liab thiab cov teeb liab digital, tsuas yog ib qho oscilloscope tuaj yeem siv los kuaj xyuas. Vim hais tias oscilloscope tuaj yeem tso saib ntau lub teeb liab waveforms hauv qhov ntsuas hluav taws xob hauv hluav taws xob ntawm lub oscilloscope raj, tib neeg tuaj yeem txiav txim siab seb qhov Circuit Court puas zoo li qub hauv kev saib xyuas cov khoom siv thiab kev debugging Circuit Court.
Cov teeb liab hluav taws xob hauv circuits, tshwj xeeb tshaj yog cov hluav taws xob tsis muaj zog, tej zaum yuav nyuaj, random, thiab ib ntus. Lub sijhawm no, oscilloscope tuaj yeem siv los txheeb xyuas cov yam ntxwv ntawm lub teeb liab thiab kwv yees nws cov hluav taws xob tsis zoo. Lub multimeter tsuas tuaj yeem ntsuas qhov ntsuas hluav taws xob tsis zoo ntawm lub teeb liab hluav taws xob tsis tu ncua, uas tsis yooj yim rau kev ntsuas thiab kev tshuaj xyuas ntawm cov teeb meem hluav taws xob nyuaj. Lub multimeter tsis yog tsuas yog haum rau ib txwm muaj zog tam sim no ntsuas kab, tab sis kuj tuaj yeem ntsuas qee qhov tsis muaj zog hauv kab tam sim no. Oscilloscopes yog dav siv nyob rau hauv hluav taws xob circuits, thiab tsis tshua haum rau muaj zog circuits tam sim no.
Tsis yog hais txog ntau yam kev ua haujlwm ntawm multimeter, txhua tus paub nws, tab sis thaum ntsuas lub teeb liab, lub multimeter tsuas tuaj yeem ntsuas qhov hluav taws xob ntxhib los txiav txim rau thawj zaug thiab kwv yees seb puas muaj qhov txhaum ntawm qhov chaw ntsuas, thiab nws tsis tuaj yeem txiav txim kom raug, tab sis lub oscilloscope tuaj yeem pom nws intuitively. Txawm hais tias lub waveform ntawm qhov ntsuas ntsuas yog deformed los yog lub teeb liab ploj, nws tuaj yeem txiav txim siab seb puas muaj qhov txhaum thiab seb nws puas yog distorted. Pom pom tias muaj teeb meem
