Yuav ua li cas ntsuas tam sim no nrog ib lub 'meter'
Yuav ua li cas ntsuas tam sim no nrog multimeter
1. Xaiv qhov ntau
DC tam sim no ntau yam ntawm multimeter yog cim nrog peb ntau yam ntawm 1mA, 1omA, thiab 100mA. Xaiv qhov loj hauv Circuit Court, thiab yog tias koj tsis paub, xaiv qhov loj tshaj plaws.
2. Kev ntsuas ntsuas
(1) Txuas lub voj voog kom lub teeb-emitting diodes tuaj yeem ci li qub.
(2) Xaiv qhov ntau ntawm cov multimeter.
(3) Tshem tawm cov hlau lead ntawm qhov sib txuas ntawm lub potentiometer thiab qhov tsis zoo electrode ntawm LED, thiab LED yuav tawm mus.
(4) Txuas lub multimeter nyob rau hauv series mus rau lub breakpoint. Lub breakpoint txuas nrog lub zoo ncej ntawm lub hwj huam mov yuav tsum tau txuas nrog lub liab xeem lead, thiab lub breakpoint txuas nrog rau cov tsis zoo ncej ntawm lub hwj chim mov yuav tsum tau txuas nrog rau cov dub xeem lead. Lub diode yuav ci dua. Qhov ntsuas tus nqi taw qhia los ntawm tus pointer ntawm multimeter yog tus nqi tam sim no ntawm lub teeb-emitting diode.
(5) Nyeem cov nqi tam sim no dhau los ntawm LED.
