Yuav ua li cas ib tug multimeter ntsuas qhov tsis kam ntawm ib tug resistor
Feem ntau faults ntawm taag resistors yog qhib Circuit Court, luv luv Circuit Court thiab sib txawv tus nqi. Txhawm rau txheeb xyuas cov resistors ruaj khov, siv lub ohmic block ntawm multimeter.
Thaum kuaj, thawj zaug txheeb xyuas tus nqi nominal tsis kam ntawm tus nyeem ntawv resistor, tom qab ntawd xaiv cov iav uas tsim nyog thiab ua ohmic xoom calibration, thiab tom qab ntawd pib kuaj cov resistor. Txhawm rau txo qhov kev ntsuas qhov yuam kev, tus pointer ntawm multimeter yuav tsum tau taw qhia ntawm qhov chaw ntawm ohm scale kab kom ntau li ntau tau.
Yog hais tias tus nqi kuj ntsuas los ntawm lub multimeter yog tib yam li nominal kuj nqi ntawm tus resistor, nws txhais tau hais tias tus resistor yog ib txwm; yog tias muaj qhov sib txawv, tab sis nyob rau hauv qhov kev tso cai yuam kev, tus resistor kuj zoo li qub. Tus nqi ntawm cov resistor ntsuas los ntawm digital multimeter yog 1477Ω, uas yog nyob rau hauv thaj tsam ntawm 1500 × (1 ± 5 feem pua) Ω, yog li cov resistor yog ib txwm.
Yog hais tias qhov ntsuas tsis kam yog infinite, lub resistor qhib.
Yog tias qhov ntsuas ntsuas tus nqi yog 0, tus resistor luv luv.
Yog hais tias qhov ntsuas ntsuas tus nqi yog siab dua los yog tsawg tshaj li tus nqi ntawm tus resistor, thiab tshaj qhov tso cai ntawm qhov yuam kev, nws qhia tau hais tias tus nqi resistor tau hloov.
