Multimeter kev yuav khoom
Kev nkag siab zoo yog qhov tseem ceeb heev rau lub multimeter. Feem ntau, multimeter nrog siab rhiab heev muaj qhov raug siab.
Kev txiav txim siab thaum yuav ib lub multimeter:
Rau cov neeg nyiam siv hluav taws xob uas feem ntau tsom mus rau kev saib xyuas cov khoom siv hauv tsev, nws yog qhov tsim nyog dua los yuav ib lub ntsuas hluav taws xob nrog DC voltage rhiab heev ntawm 20kΩ / V (kuj feem ntau sau ua ⒛000Ω / V).
Kev thaiv hluav taws xob yog cov khoom siv feem ntau siv rau hauv xov tooj cua amateurs, thiab kev saib xyuas tshwj xeeb yuav tsum tau them rau qhov chaw ntawm qhov ntau ntawm cov iav no thaum yuav khoom. Los ntawm: Tsev ntawm Electrotechnical Technology
Qhov xaiv multimeter feem ntau yuav tsum tau nruab nrog tsib lub teeb meem hluav taws xob, R × 1, R × 10, R × 100, R × 1k, thiab R × 10k. Ntawm lawv, R × 10k thaiv yuav tsum tau nruab nrog 15V laminated roj teeb cais.
Kev xyaum tau ua pov thawj tias R × 10k block muaj ntau yam kev siv, piv txwv li, ' ntsuas lub rwb thaiv tsev ntawm lub cuab yeej, kwv yees tus nqi hluav taws xob tswj hwm ntawm Zener raj, ncaj qha ntsuas lub peev xwm ntawm 0.601 ~ 1ptF, thiab lwm yam. ., txhua tus siv qhov thaiv no.
DC voltage iav thiab DC tam sim no iav kuj nquag siv. Thaum kev yuav khoom, koj yuav tsum tau ua tib zoo saib seb qhov chaw ntawm ob qhov no puas ua tiav thiab tsim nyog, thiab yuav tsum ua raws li koj tus kheej siv tus cwj pwm. DC voltage yuav tsum yog 2.5 ~ 500V, thiab DC tam sim no yuav tsum yog 1mA ~ 2.5A.
Rau AC voltage thaiv, ua ntej ntawm tag nrho cov, nws yuav tsum tau txiav txim siab tias qhov ntsuas ntawm lub mains voltage yuav tsum yooj yim thiab raug, yog li nws yog qhov zoo tshaj plaws kom muaj 250V thaiv. Raws li rau lwm lub zog, txawm hais tias qhov chaw ntawm ntau yam multimeters txawv, lawv feem ntau ua tau raws li qhov xav tau.
Hauv kev saib xyuas cov khoom siv hluav taws xob, feem ntau yuav tsum tau siv lub multimeter los ntsuas qhov muaj peev xwm ntawm qee qhov taw tes ntawm lub voj voog lossis qhov voltage ntawm ob lub ntsiab lus los txiav txim seb lub Circuit Court ua haujlwm li cas lossis tsis ua haujlwm.
Nws yog ib qho tsim nyog rau tus neeg sim xaiv lub multimeter tsim nyog los txo qhov kev ntsuas qhov yuam kev, yog li qhov ntsuas tau tuaj yeem cuam tshuam txog kev ua haujlwm ntawm lub Circuit Court thiab muab lub hauv paus raug rau kev daws teeb meem.
