Ohmmeter, ntsuas ntsuas hluav taws xob tiv thaiv, uas tau qhia hauv ohms. Nyob rau hauv qhov yooj yim ohmmeters, qhov kev tiv thaiv yuav tsum tau ntsuas yuav txuas nrog lub ntsuas nyob rau hauv parallel los yog nyob rau hauv series. Yog hais tias nyob rau hauv parallel (parallel ohmmeter), lub ntsuas yuav kos ntau tam sim no raws li kev tiv thaiv nce.
Koj ua li cas txiav txim siab qhov tsis kam ntawm tus resistor siv lub ohmmeter?
Teem koj lub multimeter mus rau qhov siab tshaj plaws tiv thaiv ntau yam muaj. Kev ua haujlwm tsis kam yog feem ntau txhais los ntawm lub cim cim rau kev tawm tsam: Greek tsab ntawv omega (Ω), lossis qee zaum los ntawm lo lus "ohms." Kov ob lub ntsuas ntsuas ntawm koj lub ntsuas ntsuas ua ke. Thaum koj ua, lub ntsuas yuav tsum sau npe 0 ohms ntawm qhov tsis kam.
Ohmmeter ua haujlwm li cas?
Lub hauv paus ntsiab lus ua haujlwm ntawm Ohmmeter yog, thaum tam sim no ntws los ntawm lub voj voog lossis cov khoom siv, tus taw tes deflects hauv lub ntsuas. Thaum tus taw tes txav mus rau sab laug ntawm lub 'meter', nws sawv cev rau qhov kev ua haujlwm siab thiab teb rau qhov tsis tshua muaj tam sim no. Qhov ntsuas ntsuas qhov ntsuas tsis yog nyob hauv ib qho ohmmeter thiab analog multimeter.
Koj ntsuas qhov tiv thaiv li cas?
Kev tiv thaiv yog ntsuas siv ntsuas xws li analog multimeter lossis digital multimeter. Ob hom kev ntsuas tuaj yeem ntsuas tsis tau tsuas yog tiv thaiv, tab sis kuj tseem tam sim no, voltage, thiab lwm yam, yog li lawv tuaj yeem siv rau ntau qhov xwm txheej.
Puas yog nws OK los ntsuas kev tiv thaiv hauv lub zog hluav taws xob nrog ib qhoohmmeter?
Tsis zoo li voltmeters lossis ammeters, ohmmeters yuav tsum muaj lawv tus kheej lub zog. Ib qho cuam tshuam ntawm qhov tseeb yog tias ohmmeters yuav tsum tsis txhob siv los ntsuas qhov tsis kam ntawm cov khoom siv hluav taws xob.
