Lub hauv paus ntsiab lus ntawm digital multimeter ntsuas tam sim no
Lub hauv paus ntsiab lus ntawm digital multimeter ntsuas tam sim no yog siv Ohm's theorem: I=U/R. Cov multimeter digital muaj ntau lub zog tam sim no, uas sib haum mus rau ntau qhov piv txwv resistors. Thaum ntsuas, txuas lub multimeter nyob rau hauv series mus rau lub Circuit Court nyob rau hauv kev ntsuam xyuas, xaiv cov coj iav, thiab cov ntws tam sim no yuav ua rau ib tug voltage ntawm lub sampling resistor. Tus nqi hluav taws xob raug xa mus rau A / D analog-rau-digital hloov pauv nti, thiab cov khoom lag luam analog tau hloov mus rau hauv digital kom muaj nuj nqis, thiab tom qab ntawd suav los ntawm lub txee hluav taws xob, thiab thaum kawg tus nqi tau tshwm sim ntawm qhov screen. Lub multimeter muaj ib tug series sampling resistor nyob rau hauv. Thaum lub multimeter txuas nrog nyob rau hauv series mus rau lub Circuit Court yuav tsum tau kuaj, ib tug tam sim no yuav ntws los ntawm cov sampling resistor, thiab ib tug voltage sib txawv ntawm ob kawg ntawm lub resistor. Lub LCD npo tau tso tawm.
