Dab tsi ntawm multimeter yog qhov tsim nyog rau kev saib xyuas cov khoom siv hauv tsev
Multimeter siv thiab tu
Lub voj voog ntawm lub tshuab multimeter yog qhov nyuaj dua li lub log, thiab nws tau siv ntau zaus, yog li muaj feem ntau ntawm kev ua tsis tiav thiab kev puas tsuaj. Yog li ntawd, kev saib xyuas tshwj xeeb yuav tsum tau them thaum siv thiab tswj:
(1) Thaum ntsuas qhov ntsuas hluav taws xob, lub ammeter yuav tsum txuas nrog rau qhov sib npaug nrog lub voj voog hauv kev sim. Yog tias qhov ntsuas hluav taws xob yog DC, kev saib xyuas yuav tsum tau them rau qhov zoo thiab qhov tsis zoo.
(2) Thaum ntsuas qhov tam sim no, lub ammeter yuav tsum tau txuas nrog lub voj voog nyob rau hauv kev sim, thiab xyuam xim rau qhov zoo thiab qhov tsis zoo ntawm tib lub sijhawm.
(3) Yog tias koj tsis paub meej txog qhov zoo thiab qhov tsis zoo ntawm lub voj voog nyob rau hauv kev sim, koj tuaj yeem muab qhov hloov pauv hloov ntawm qhov siab tshaj plaws, thiab tom qab ntawd hloov mus rau qhov tsim nyog rau kev ntsuas.
(4) Yog tias koj tsis paub qhov zoo thiab qhov tsis zoo ntawm lub voj voog nyob rau hauv kev sim, koj tuaj yeem muab qhov hloov pauv hloov ntawm qhov siab tshaj plaws, tom qab ntawd kov lub calibration pas nrig rau txhua tus ncej ntawm Circuit Court hauv kev sim, thiab tom qab ntawd muab tso rau lwm qhov. Siv lub calibration kov maj mam rau ntawm lwm tus ncej ntawm Circuit Court nyob rau hauv kev sim thiab coj nws tam sim ntawd. Saib xyuas cov kev taw qhia deflection ntawm tus taw tes, thiab tom qab ntawd txiav txim siab nws cov ncej zoo thiab tsis zoo.
(5) Yog tias nws tsis paub meej tias qhov voltage ntawm Circuit Court nyob rau hauv kev sim yog DC lossis AC, nws yuav tsum tau sim nrog AC iav ua ntej, thiab tom qab ntawd sim nrog DC iav. Thaum kuaj nrog DC iav, yog lub ammeter tsis nyeem ntawv, nws yog AC, txwv tsis pub nws yog DC.
(6) Thaum ntsuas tam sim no lossis tsis kam ntawm ammeter, qhov ntsuas hluav taws xob yuav tsum tsis raug ntsuas, txwv tsis pub lub taub hau ntsuas yuav raug kev puas tsuaj loj.
(7) Thaum kho qhov tsis kam, lub hwj chim ntawm lub voj voog nyob rau hauv kev sim yuav tsum raug txiav tawm kom tsis txhob muaj kev puas tsuaj rau lub taub hau meter. Nws yog qhov zoo tshaj plaws los ntsuas qhov kev tiv thaiv yuav tsum ntsuas tom qab tshem tawm cov hlau los ntawm qhov qub Circuit Court. Qhov no tuaj yeem tsis tsuas yog tiv thaiv lub taub hau 'meter' xwb, tab sis kuj ua kom qhov ntsuas tau raug. Yog hais tias muaj ib tug capacitor nyob rau hauv lub Circuit Court nyob rau hauv kev ntsuam xyuas, lub capacitor yuav tsum tau tso tawm ua ntej, txwv tsis pub lub ntsuas yuav puas.
(8) Tom qab kev ntsuas tiav lawm, qhov hloov pauv yuav tsum tig mus rau qhov siab tshaj plaws rau kev ntsuas AC voltage, kom tsis txhob muaj kev puas tsuaj los ntawm kev siv tsis raug rau kev siv tom ntej.
