Dab tsi yog qhov txawv ntawm multimeter kuj iav thiab buzzer iav thaum ntsuas rau thiab tawm?
Cov ntaub ntawv multimeter kuj tuaj yeem ntsuas qhov loj me ntawm kab tsis kam, thiab tom qab ntawd peb tuaj yeem txheeb xyuas thiab txiav txim seb cov kab puas zoo li qub lossis qhov ua txhaum dab tsi tshwm sim raws li qhov loj me.
Lub buzzer tsuas tuaj yeem txiav txim siab seb qhov kev tawm tsam ntawm txoj kab loj dua lossis me dua (feem ntau, nws yog hais txog 30-50Ω raws li qhov sib faib, thiab cov multimeters sib txawv me ntsis).
Piv txwv tias qhov tseem ceeb tsis kam ntawm lub buzzer iav ntawm lub multimeter yog 50Ω, lub buzzer iav yuav ring tsuas yog thaum qhov kev tiv thaiv ntawm kab los yog load tsawg dua 50Ω, thiab qhov me dua qhov kev tiv thaiv, lub suab buzzer ntau dua. Tab sis thaum qhov kev tawm tsam ntawm kab lossis kev thauj khoom ntau dua 50Ω, lub buzzer yuav tsis nplhaib. Yog li ntawd, thaum txoj kab tsis kam yog siab dua 50Ω lossis ∞, peb tsis tuaj yeem paub qhov txawv ntawm lub buzzer.
Ib-theem lub cev muaj zog kev txiav txim zoo
Los ntawm kev paub tias lub cev muaj zog muaj plaub nyob rau hauv tag nrho, peb tuaj yeem ua pov thawj tias lub cev muaj zog yuav tsum yog lub cev muaj zog ib zaug (qhov tshwj xeeb ntawm ib-theem lub cev muaj zog tuaj yeem xaus lus tom qab pom qhov tseeb).
Ib-theem lub cev muaj zog muaj ob lub coil windings, ib qho yog pib winding thiab lwm qhov yog khiav winding. Vim tias qhov khiav winding yog thicker thiab qhov pib winding yog thinner, qhov kev tiv thaiv ntawm qhov pib winding yog loj dua li ntawm kev khiav winding. Tus nqi tshwj xeeb kuj muaj feem xyuam rau lub cev muaj zog qauv thiab lub zog, thiab nws muaj peev xwm los ntawm ntau tshaj kaum ohms mus rau ib lossis ob puas ohms. (Qhov loj dua lub cev muaj zog, qhov me dua qhov tsis kam; qhov me zog, qhov ntau dua qhov tsis kam)
Yog tias lub zog ntawm lub cev muaj zog me me, nws qhov kev tiv thaiv yuav loj heev. Yog tias qhov kev tawm tsam ntau dua 50Ω, qhov tshwm sim peb ntsuas nrog lub buzzer tsis muaj suab nrov. Ib yam li ntawd, yog hais tias lub cev muaj zog winding yog burnt tawm, ces peb yuav tsis suab thaum peb siv lub buzzer.
Yog hais tias lub zog ntawm lub cev muaj zog siab, nws cov nqi kuj yuav tsawg heev. Yog hais tias tus nqi kuj tsawg dua 50Ω, qhov tshwm sim peb ntsuas nrog lub buzzer iav yog buzzer. Ib yam li ntawd, yog tias muaj luv luv nyob rau hauv nruab nrab ntawm lub cev muaj zog winding, ces qhov tshwm sim peb ntsuas nrog lub buzzer iav kuj yog ib tug buzzer.
Yog li ntawd, yeej tsis muaj txoj hauv kev los txiav txim seb lub cav yog qhov zoo lossis qhov tsis zoo rau qhov xwm txheej koj tau hais. Txhawm rau txiav txim siab qhov zoo ntawm lub cev muaj zog, nws yog ib qho tsim nyog yuav tsum tau muab cov kev soj ntsuam raws li lub cev muaj zog thiab lub zog.
Rau cov phooj ywg hluav taws xob uas yog tshiab rau multimeters, kuv xav tias thaum ntsuas kab lossis loads nrog multimeters, sim siv cov ntaub ntawv tiv thaiv es tsis txhob ntawm cov ntaub ntawv buzzer, uas yog ib qho txiaj ntsig zoo rau kev tswj thiab tswj cov multimeters. Tsuas yog tom qab koj tau ua tiav daim ntawv thov ntawm multimeter los ntsuas kev tiv thaiv, koj tuaj yeem siv lub buzzer los txhim kho kev ceev ceev.
