Qhov sib txawv ntawm multimeter test thiab oscilloscope test
Multimeters thiab oscilloscopes yog cov cuab yeej siv
Multimeters thiab oscilloscopes yog tag nrho cov paub txog electronics engineers. Nws tuaj yeem hais tias yog ib qho cuab yeej tseem ceeb rau R & D, debugging thiab txij nkawm. Tau kawg, cov 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 pib siv digital multimeters.
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 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.
Kev saib xyuas tshwj xeeb yuav tsum tau them thaum siv multimeter los ntsuas qhov tam sim no. Txhawm rau ntsuas qhov tam sim no, lub tshuab multimeter yuav tsum tau txuas nrog hauv series rau hauv Circuit Court, thiab cov hlau kuaj liab yuav tsum tau muab tso rau hauv lub qhov (socket) haum rau qhov ntau. Yog tias qhov tam sim no tshaj qhov ntau, lub fuse ntawm multimeter yuav raug hlawv.
oscilloscope
Oscilloscopes thiab multimeters txawv, thiab multimeters tsuas tuaj yeem tso saib qhov ntsuas ntsuas. Lub oscilloscope tuaj yeem ntsuas lub teeb liab sai thiab tsis tu ncua, thiab kos nws raws li qhov nkhaus thiab tso rau ntawm qhov screen.
Oscilloscopes yog siv nyob rau hauv ntau yam kev siv. Cov teeb liab 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.
Lub oscilloscope muaj ntau lub luag haujlwm thiab cov ntawv qhia zaub mov, thiab nws yuav tsum muaj qee yam kev paub siv nws.
Muaj ob hom multimeters: analog thiab digital.
Lub pointer ntawm lub analog saib swings hloov tau yooj yim, uas ua rau nws yooj yim dua los txiav txim cov kev hloov hauv Circuit Court.
oscilloscope
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 ntes lawv. Vim tias oscilloscope tuaj yeem tso saib ntau lub teeb liab waveforms hauv cov khoom siv hluav taws xob hauv hluav taws xob ntawm lub oscilloscope raj, nws ua rau tib neeg tuaj yeem txiav txim siab seb lub Circuit Court puas zoo li qub hauv kev saib xyuas cov khoom siv thiab Circuit Court debugging.
Cov teeb liab hluav taws xob hauv Circuit Court, tshwj xeeb tshaj yog cov hluav taws xob hluav taws xob uas tsis muaj zog tam sim no, 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 hluav taws xob tsis zoo ntawm cov teeb liab hluav taws xob raug nyob hauv lub xeev khov kho, 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 tau siv dav hauv cov hluav taws xob hluav taws xob, thiab tsis tshua haum rau cov hluav taws xob muaj zog.
Tsis tas yuav hais, ntau txoj haujlwm ntawm multimeter paub rau txhua tus, tab sis thaum ntsuas cov cim qhia, lub multimeter tsuas tuaj yeem ntsuas qhov tsis zoo ntawm qhov pib txiav txim siab thiab twv seb puas muaj qhov txhaum ntawm qhov ntsuas ntsuas, thiab nws tsis tuaj yeem txiav txim kom raug, tab sis lub oscilloscope tuaj yeem pom qhov pom tseeb Txawm hais tias lub nthwv dej ntawm qhov ntsuas taw tes yog deformed lossis ploj teeb liab tuaj yeem txiav txim siab seb puas muaj qhov txhaum lossis tsis ua, thiab seb nws puas yog distorted. Visually saib seb puas muaj teeb meem
