Qhov sib txawv ntawm multimeter thiab oscilloscope hauv kev ntsuas qhov ntsuas hluav taws xob
Vim kev xav tau kev ua haujlwm, kuv tau siv ob qho tib si multimeters thiab oscilloscopes thaum soldering circuit boards thiab debugging circuits. Ua ncaj ncees, kuv xav tias kuv siv multimeters ntau dua oscilloscopes thaum kuv ua hauj lwm ib txwm, tshwj tsis yog cov teeb meem uas yuav daws tau los ntawm multimeters siv. Siv lub oscilloscope los daws nws. Kuv feem ntau muaj ob lub multimeter ntawm tes, ib qho yog analog pointer thiab lwm yam yog digital.
pointer multimeter
Lub analog pointer multimeter tseem muaj zog heev hauv qee lub sijhawm tshwj xeeb. Piv txwv li, kuv feem ntau siv lub pointer multimeter los txiav txim seb lub triode tsis muaj npe yog PNP lossis NPN. Nws yog qhov yooj yim heev rau lub triode kom nyob rau hauv conduction; Koj tuaj yeem siv lub pointer multimeter los txiav txim qhov polarity ntawm peb lub polarities ntawm qhov ntws (D), qhov chaw (S) thiab rooj vag (G) ntawm MOS raj thiab nws qhov zoo.
digital multimeter
Digital multimeters paub txog lawv qhov kev ua tau zoo, kev nyeem yooj yim ntawm kev ntsuas qhov tseem ceeb, thiab muaj peev xwm muaj zog tshaj. Kuv feem ntau siv digital multimeters thaum ntsuas qhov voltage, tam sim no, thiab tsis kam ntawm Circuit Court boards. Txij li cov digital multimeter muaj lub luag haujlwm tuav thaum ntsuas qhov voltage thiab tam sim no, nws yooj yim heev rau kev ntsuas kev nyeem ntawv. Yog li ntawd, lawv feem ntau siv ua ke raws li lawv qhov "lub zog" thaum kho thiab debugging lub rooj tsav xwm hauv Circuit Court.
Lub luag haujlwm tseem ceeb ntawm oscilloscope
Kuv nyuam qhuav tham txog kev ua haujlwm uas multimeter tuaj yeem ua tau, thiab tam sim no peb tab tom tham txog oscilloscope. Cia peb ua piv txwv tsis tsim nyog. Lub multimeter yog sib npaug rau lub stethoscope uas kws kho mob feem ntau nqa thaum lawv tawm mus ntsib kws kho mob. Nws yog ib qho yooj yim mus nqa tab sis muaj tsawg zog. Nws tsuas tuaj yeem ntsuas cov haujlwm txwv xws li voltage, tam sim no, tsis kam, thiab hom triode; Cov tshuab CT Advanced muaj zog thiab tuaj yeem tshawb xyuas txhua qhov ntawm tib neeg lub cev, tab sis lawv kim heev. Tom qab ntawd cov oscilloscopes siv los ntawm peb cov kws kho hluav taws xob kho hluav taws xob zoo ib yam li cov cuab yeej no. Raws li deb li hom oscilloscopes muaj kev txhawj xeeb, feem ntau muaj ob hom, ib qho yog analog oscilloscopes thiab lwm yam yog cov oscilloscopes. Lawv qhov tshwj xeeb tshaj yog tias lawv tuaj yeem ntsuas tsis tau qhov voltage thiab tam sim no ntawm lub voj voog, tab sis kuj ntsuas lub waveform, theem, lub sij hawm thiab zaus ntawm qhov voltage los yog tam sim no, thiab ntau lwm yam tsis ntawm lub rooj tsav xwm Circuit Court. Los ntawm qhov no, "kev txawj" ntawm oscilloscope muaj zog dua.
Tshwj xeeb tshaj yog nyob rau hauv digital circuits, thaum nws yog ib qho tsim nyog los ntes cov cim "ntev" luv luv, ces lub oscilloscope yog tus txiv neej sab xis nyob rau lub sijhawm no, thiab nws lub sijhawm "capture" tuaj yeem ncav cuag milliseconds, thiab "capture" zaus tuaj yeem ncav cuag. pua pua megahertz.
