Needle type multimeter thiab digital multimeter txhua tus muaj lawv tus kheej qhov zoo thiab qhov tsis zoo
Ib tus pointer multimeter yog ib qho cuab yeej nruab nrab uas muab kev nkag siab zoo thiab pom kev nyeem ntawv
(Feem ntau, kev nyeem cov lej muaj feem cuam tshuam nrog lub kaum sab xis ntawm lub taw tes taw, yog li nws yog qhov yooj yim heev)
Ib qho digital multimeter yog ib qho ntsuas ntsuas tam sim uas siv cov qauv coj txhua txhua 0.3 vib nas this los qhia cov txiaj ntsig ntsuas. Qee zaum, txhua qhov kev kuaj pom tsuas yog zoo sib xws thiab tsis zoo ib yam. Qhov no tsis yooj yim rau kev nyeem cov txiaj ntsig raws li hom pointer
Tus pointer hom multimeter feem ntau tsis muaj lub suab nrov hauv, yog li nws qhov kev tiv thaiv sab hauv me me. Piv txwv li, MF-10 qauv muaj DC voltage rhiab heev ntawm 100 kiloohms/volt. Qhov no suav hais tias yog qhov zoo heev Lub DC voltage rhiab heev ntawm MF -500 qauv yog 20 kiloohms / volt
Lub tshuab hluav taws xob digital siv lub tshuab hluav taws xob ua haujlwm sab hauv, thiab qhov kev tiv thaiv sab hauv tuaj yeem siab heev, feem ntau nyob ib ncig ntawm 1M ohms lossis siab dua (piv txwv li qhov siab dua tuaj yeem ua tiav). Qhov no tso cai rau kom muaj kev cuam tshuam tsawg dua ntawm qhov ntsuas hluav taws xob thiab ntsuas qhov tseeb dua
Vim nws qhov kev tiv thaiv me me thiab kev siv cov khoom sib cais los ua ib qho hluav taws xob hluav taws xob sib faib hluav taws xob, cov yam ntxwv zaus ntawm tus pointer hom multimeter tsis sib npaug (piv rau cov digital). Ntawm qhov tod tes, cov yam ntxwv zaus ntawm tus pointer hom multimeter kuj zoo dua
Cov qauv sab hauv ntawm lub pointer hom multimeter yog qhov yooj yim, yog li tus nqi qis. Nws muaj kev ua haujlwm tsawg dua, kev saib xyuas yooj yim, thiab muaj zog overcurrent thiab overvoltage peev xwm
Cov multimeter digital siv ntau yam oscillation, amplification, zaus division, tiv thaiv thiab lwm yam circuits sab hauv, yog li nws muaj ntau lub zog, xws li ntsuas kub, zaus (nyob rau hauv ib tug qis ntau), capacitance, inductance, los yog ua hauj lwm raws li ib tug teeb liab generator, thiab lwm yam.
Vim yog kev siv cov kev sib xyaw ua ke hauv cov qauv sab hauv, lub peev xwm overload tsis zoo (Txawm li cas los xij, qee qhov tam sim no muaj peev xwm hloov pauv tsis siv neeg, kev tiv thaiv tsis siv neeg, thiab lwm yam, tab sis lawv siv ntau dua.) Tom qab kev puas tsuaj, nws yog feem ntau tsis yooj yim kho
Cov zis hluav taws xob ntawm digital multimeter yog qhov tsawg (feem ntau tsis tshaj 1 volt). Nws tsis yooj yim rau kev sim qee yam khoom siv nrog cov yam ntxwv tshwj xeeb (xws li thyristors, lub teeb-emitting diodes, thiab lwm yam).
Cov zis hluav taws xob ntawm tus pointer hom multimeter yog qhov siab, xws li 10.5 volts, 12 volts, thiab lwm yam.
Tam sim no kuj loj (xws li MF-500 * 1 ohm * txog 100 milliamperes), ua kom yooj yim rau kev sim thyristors, lub teeb-emitting diodes, thiab lwm yam.
Rau beginners yuav tsum tau siv ib tug pointer hom multimeter
