Multimeter xeem Circuit Court kauj ruam-Multimeter teeb meem Circuit Court boards
Lub hauv paus ntsiab lus ntawm multimeter yog siv lub rhiab magneto-electric DC ammeter (microammeter) ua lub taub hau meter. Thaum ib tug me me tam sim no hla lub taub hau, ib tug tam sim no qhia. Txawm li cas los xij, lub taub hau tsis tuaj yeem hla cov tam sim no loj, yog li lub taub hau yuav tsum tau txuas nrog cov kab sib txuas ntawm qee cov resistors rau shunt los yog voltage txo, thiaj li ntsuas qhov tam sim no, voltage thiab tsis kam nyob rau hauv Circuit Court.
1. Xaiv qhov ntau: multimeter DC tam sim no cov ntaub ntawv sau npe "mA" muaj 1mA, 1omA, 100mA peb ntau yam. Xaiv qhov ntau, yuav tsum ua raws li qhov loj ntawm qhov tam sim no hauv Circuit Court. Yog tias koj tsis paub qhov loj ntawm qhov tam sim no, qhov siab tshaj plaws yuav tsum raug xaiv.
2. Kev ntsuas txoj kev: multimeter yuav tsum tau txuas nrog hauv series nrog lub voj voog nyob rau hauv kev sim. Qhov sib thooj ntawm Circuit Court yuav tsum raug txiav, lub multimeter cwj mem txuas nrog rau qhov kawg ntawm qhov tawg. Tus cwj mem liab yuav tsum tau txuas nrog lub breakpoint txuas nrog tus ncej zoo ntawm lub hwj huam mov, tus cwj mem dub txuas nrog lub breakpoint txuas nrog rau tus ncej tsis zoo ntawm lub hwj huam mov.
3. Kev nyeem ntawv raug: DC tam sim no cov ntaub ntawv teev kab tseem yog qhov thib ob, xws li xaiv cov ntaub ntawv 100mA, muaj nyob rau hauv peb kab ntawm cov duab, kev nyeem ntawv tuaj yeem muab faib ua 10.
Multimeter xeem Circuit Court kauj ruam
(1) Nyob rau hauv txoj kab kev ua txhaum cai, qhov kev sojntsuam ntawm cov khoom siv ntsuas yuav tsum tsis txhob muab tso rau hauv ib qho txuas lossis fuse lub thawv terminals, txwv tsis pub nws yuav ua rau feem ntau ntawm cov terminals deformed. Lub deformation ntawm cov terminals yuav ua rau kev sib cuag tsis zoo.
(2) Tom qab kuaj xyuas lub Circuit Court yog lawm, qhib lub hwj chim, tig lub potentiometer lub teeb-emitting diode brightness yuav hloov. Ua kom lub teeb-emitting diode brightness nruab nrab.
(3) yuav npaj siv lub multimeter raws li qhov yuav tsum tau ua ntawm cov lus hais yav dhau los yuav tsum tau ua ua ntej, thiab tus xaiv hloov yuav muab tso rau hauv Vl0 volts.
(4) tuav lub insulating pas nrig ntawm lub 'meter', qhov zoo thiab qhov tsis zoo cwjmem tau tiv tauj nrog tus ncej zoo thiab qhov tsis zoo ntawm lub thawv roj teeb coj cov lugs, ntsuas qhov hluav taws xob qhov hluav taws xob. Yog nyeem tus nqi voltage.
Cov ntaub ntawv: lub hwj huam mov voltage yog nyob rau hauv volts.
(5) lub multimeter liab thiab dub cwj mem hu lub teeb-emitting diode pins, ntsuas lub teeb-emitting diode voltage ntawm tus ncej. Yog nyeem tawm tus nqi voltage.
Cov ntaub ntawv: lub teeb-emitting diode voltage volts ntawm ob kawg.
(6) siv ib lub multimeter los ntsuas qhov voltage ntawm qhov kawg ntawm qhov ruaj khov resistor. Thawj zaug txiav txim rau tus cwj mem zoo thiab tsis zoo yuav tsum yog qhov chaw sib cuag, thiab tom qab ntawd ntsuas.
Cov ntaub ntawv: voltage volts ntawm ob qho kawg ntawm qhov ruaj khov resistor.
Nyob rau hauv peb kauj ruam saum toj no hauv kev ntsuas, qhov voltage tus nqi yog tsawg dua 2.5 volts, lub multimeter selector hloov tau hloov mus rau V2.5 volts thiab tom qab ntawd ntsuas dua, piv cov txiaj ntsig ntawm ob qhov kev ntsuas (hloov qhov ntau yuav tsum tau them sai sai rau. kev nyeem ntawv ntawm qhov ntsuas).
(7) Kev ntsuas ua tiav, tshem tawm lub zog hluav taws xob. Raws li yav dhau los tham txog lub multimeter yuav tsum tau ua tom qab siv cov kev cai ntawm qhov tau txais ntawm multimeter.
