Qhov sib txawv ntawm ib qho kev ntsuas multimeter thiab kev kuaj oscilloscope
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 lawv yog cov cuab yeej tseem ceeb rau kev tshawb fawb thiab kev tsim kho, kev debugging thiab kev saib xyuas. Tau kawg, cov haujlwm ntawm multimeter thiab oscilloscope yog txawv kiag li.
Muaj ob hom multimeter: hom pointer thiab hom digital; hom pointer tau pib raug tshem tawm, thiab tam sim no nws yog qhov pib digital multimeter.
Lub multimeter tuaj yeem siv los ntsuas qhov tsis kam, AC thiab DC voltage, AC thiab DC tam sim no, diode, capacitance, zaus, thiab lwm yam. Lub multimeter yog yooj yim siv. Multimeters yooj yim siv. Tsuas yog teeb tsa lub iav rau qhov ua haujlwm iav koj xav tau ntsuas thiab koj npaj ntsuas.
Thaum siv cov multimeter los ntsuas tam sim no, tshwj xeeb yuav tsum tau them rau qhov ntsuas tam sim no yuav tsum tau txuas nrog hauv cov kab sib txuas rau hauv Circuit Court, thiab tus cwj mem liab yuav tsum tau muab tso rau hauv qhov tsim nyog ntawm lub jack, qhov tam sim no tshaj qhov ntau ntawm cov fuse yuav hlawv tawm lub multimeter.
Oscilloscope
Oscilloscopes txawv ntawm multimeters nyob rau hauv uas ib tug multimeter tsuas yog qhia qhov ntsuas qhov tseem ceeb. Oscilloscopes tuaj yeem ntsuas cov teeb liab sai thiab tsis tu ncua, thiab npaj lawv rau hauv cov nkhaus uas tau tshwm sim ntawm qhov screen.
Oscilloscopes muaj ntau yam kev siv. Nws tuaj yeem hloov cov teeb liab uas pom tsis pom ntawm qhov muag liab qab rau hauv cov duab. Peb tuaj yeem txheeb xyuas ntau yam teeb liab thiab cov ntaub ntawv hloov pauv raws li ntsuas lub teeb liab waveform.
Oscilloscopes muaj ntau lub zog thiab cov ntawv qhia zaub mov thiab xav tau qee qhov kev paub yooj yim siv.
Muaj 2 hom multimeters: analogue thiab digital.
Lub analogue meter muaj qhov hloov pauv hloov pauv, uas ua rau nws yooj yim dua los txiav txim qhov kev hloov pauv hauv Circuit Court.
Oscilloscopes
Multimeters yog cov ntse rau kev ntsuas kom raug ntau dua ntawm DC cov cim qhia thiab cov cim tsis tshua muaj AC. Rau feem ntau AC teeb liab thiab cov teeb liab digital, lawv tsuas tuaj yeem kuaj pom nrog oscilloscope. Raws li oscilloscope tuaj yeem kuaj pom hauv hluav taws xob hluav taws xob ntawm ntau lub teeb liab waveforms nyob rau hauv oscilloscope raj tso saib, kom cov neeg hauv kev saib xyuas cov khoom siv thiab kev debugging Circuit Court, raug txiav txim siab seb lub Circuit Court puas zoo li qub.
Circuits, tshwj xeeb tshaj yog tsis muaj zog hluav taws xob circuits nyob rau hauv cov teeb liab hluav taws xob tej zaum yuav complex, random, transient, lub sij hawm no nrog ib tug oscilloscope yuav soj ntsuam cov yam ntxwv ntawm lub teeb liab thiab kwv yees nws cov hluav taws xob tsis. Multimeter tuaj yeem txiav txim siab tsis tu ncua ntawm cov khoom siv hluav taws xob tsis zoo ntawm cov teeb liab hluav taws xob, tsis yog los pab txhawb kev ntsuas thiab tshuaj xyuas cov teeb meem hluav taws xob nyuaj. Multimeter yog tsim nyog rau ob qho tib si cov tsoos muaj zog kab ntsuas, tab sis kuj nyob rau hauv tsis muaj zog kab ntsuas ntawm tej yam tsis. Oscilloscopes tau siv dav hauv cov hluav taws xob hluav taws xob, cov kab hluav taws xob muaj zog tsawg siv tau.
Multimeter ntau lub zog tsis tas yuav hais, peb txhua tus paub, tab sis nyob rau hauv kev ntsuas ntawm lub teeb liab, lub multimeter tsuas tuaj yeem ntsuas qhov hluav taws xob ntxhib los pib txiav txim siab thiab twv qhov ntsuas qhov chaw nrog lossis tsis ua haujlwm, tsis tuaj yeem txiav txim kom raug, tab sis oscilloscope tuaj yeem pom qhov muag ntsuas qhov taw tes ntawm lub waveform, seb qhov deformation lossis poob ntawm lub teeb liab, koj tuaj yeem txiav txim siab qhov muaj qhov yuam kev, txawm tias qhov txawv txav, xws li lub raj TV kab-teb scanning waveforms, thiab oscilloscope tuaj yeem pom. nyob rau hauv kev ntsuas ntawm lub waveform. TV teeb liab nyob rau hauv ntau yam teeb liab amplification Circuit Court ntawm lub waveform yog distorted los yog ploj, koj muaj peev xwm intuitively pom yog tias muaj teeb meem!
