Yuav ua li cas siv cov multimeter kom nrhiav tau luv luv hluav taws xob, qhib cov kab ncig thiab to
Lub multivation yog ib qho ntawm cov cuab yeej siv feem ntau ntawm cov tshuab hluav taws xob, kev txij nkawm cov neeg ua haujlwm, cov tshuab hluav taws xob, thiab cov kws kho vajtse engine. Nws yog qhov tseem ceeb rau kev kuaj cov hluav taws xob hauv hluav taws xob thiab qhov chaw sib yuam. Ib tug me multimeter muaj cov haujlwm muaj zog, muaj peev xwm ntsuas, txuas ntxiv, qhib cov voj voog, thiab cov topgetors, thiab cov topgets yog qhov muaj nuj nqi tseem ceeb tshaj plaws ntawm kev ua haujlwm ntau. Kawm kom siv tshuaj multomimeter thiab coj yooj yim ua txhaum koj tus kheej.
Yuav ua li cas siv tus multimeter kom nrhiav tau luv luv hluav taws xob
Kev ntsuas luvflecuit Court feem ntau yog siv nyob rau hluav taws xob kev saib xyuas thiab sib xyaw ua ke thaj chaw. Thaum ntsuas qhov kev ua yuam kev luv luv, nws yog qhov tsim nyog los xyuas kom meej tias lub zog tau txiav tawm thiab tsis txhob ua haujlwm nrog lub zog nyob. Kev ntsuas luv luv taw tes yog nqa tawm siv cov buzzer lossis ohm ntau ntawm multimeter. Siv lub buzzer rau kev ntsuas yog kev paub ntau dua. Thaum lub Circuit Court yog luv dua ci ntsa iab, pultimimeter yuav ncaj qha "beep". Lub hauv paus ntsiab lus ntawm cov buzzer khwv tau yog tias thaum ntsuas kev tawm tsam yog tsawg dua li 75, qhov multimeter yuav beep. Yog tias koj xav paub ntau dua qhov tsis kam ntawm ob lub voj voog, koj tuaj yeem siv 200 ω ntau yam rau kev ntsuas. Thaum siv cov hom buzzer rau kev ntsuas, qee zaum qhov kev tawm tsam sab hauv ntawm ob lub cim yog me me, uas tuaj yeem ua tau yooj yim coj mus rau kev tsis ncaj ncees. Piv txwv li, thaum Relay / Hu rau Coils, ntau tus relay / hu rau Coils muaj kev cuam tshuam tsawg dua 75 ω. Thaum siv cov hom buzzer rau kev ntsuas, nws yuav zoo li lub sijhawm luv luv, tab sis qhov tseeb, nws tsis yog.
Engineers often use a multimeter buzzer to quickly locate the fault point of a short circuit in a circuit or component, such as measuring whether the resistance or capacitance is short circuited, whether the diode is reverse broken, whether the transistor is broken down (usually the base and emitter are short circuited when the transistor is broken down), whether there is a short circuit between the power supply and ground of the integrated circuit chip, and whether there is a short circuit between two pins.
