Cov lus qhia rau kev ntsuas qhov tsis kam nrog lub multimeter
1, pointer multimeter ohm iav tiv thaiv kev ntsuas yuav tsum nco ntsoov rau ohm xoom, thiab tom qab ntawd hloov lub iav ntsuas, tab sis kuj yuav tsum kho qhov xoom, digital multimeter, peb yuav tsum xyuam xim rau tus cwj mem kab tsis kam, tshwj xeeb tshaj yog thaum cov cwj mem tsis zoo. loj heev (feem ntau 0.2 los yog li ntawd)
2, ntsuas qhov tsis kam ntawm wu Cheebtsam ntawm lub rooj tsavxwm Circuit Court, nws raug nquahu kom tshem tawm qhov ntsuas ko taw, kom tsis txhob cuam tshuam los ntawm Circuit Court, ntsuas cov ntaub ntawv raug.
Kuv siv qhov tsis kam ntawm multimeter yog feem ntau nyob rau hauv plaub yam no: Ua ntej, qhov tsis kam ntawm cov iav qis tshaj los ntsuas cov kab los ntawm lossis tawm; Qhov thib ob, qhov kev tiv thaiv ntawm cov iav tsim nyog los ntsuas lub cev muaj zog yog qhov zoo lossis qhov tsis zoo, xws li cov coil kuj yog qhov qub thiab seb lub cev muaj zog yog luv rau hauv av to, thiab lwm yam; Thib peb, qhov kev tiv thaiv ntawm cov iav tsim nyog nyob rau hauv lub rooj tsav xwm Circuit Court kom paub qhov zoo thiab qhov tsis zoo, xws li cov resistors thiab lwm yam hauv cov raj tertiary; Plaub, nrog rau qhov tsis kam ntawm tus pointer multimeter tuaj yeem kuaj Qee tus capacitors tej zaum zoo lossis phem. Kuv feem ntau yog li ntawd nrog lub multimeter tiv thaiv thaiv.
Feem ntau ntawm cov khoom siv hluav taws xob muaj tus qauv kev tiv thaiv tus nqi, peb siv cov multimeter kuj tuaj yeem pab txiav txim siab qhov txawv txav ntawm cov khoom siv hluav taws xob, ntawm chav kawm, tsis yog siv qhov ntsuas ntawm ob qhov kev tiv thaiv txawv txav yuav tsum txawv txav, qhov tsis zoo ntawm cov khoom siv hluav taws xob. Cov khoom siv hluav taws xob cuam tshuam rau ntau yam, xws li qhov ntom ntom, zoo, thaj tsam. Zoo, cheeb tsam. Kub muaj kev cuam tshuam, piv txwv li, koj ntsuas 20 degrees Celsius thaum qhov kev tiv thaiv ntawm 100 ohms, mus rau 40 degrees Celsius thaum qhov kev tiv thaiv yuav dhau los ua 90 los yog li ntawd, yog li qhov no tsuas yog ib qho kev sim ntsuas!
