Yuav ua li cas siv ib tug multimeter los ntsuas qhov ua txhaum ntawm cov hluav taws xob hauv circuits lossis khoom siv
Raws li ib qho tseem ceeb ntsuas ntsuas rau hluav taws xob, ib tug multimeter yuav siv tau los ntsuas ntau lub cev muaj nuj nqi xws li voltage, tam sim no, tsis kam, thiab capacitance. Yog li ntawd, multimeters ua lub luag haujlwm tseem ceeb hauv kev ntsuas thiab kho cov circuits. Yuav ua li cas siv ib tug multimeter los ntsuas qhov ua txhaum ntawm cov hluav taws xob hauv circuits lossis khoom siv.
Dab tsi yog leakage
Kev xau yog tshwm sim los ntawm cov txheej txheem rwb thaiv tsev ntawm cov xaim raug puas tsuaj thiab muaj kev sib txuas hluav taws xob ntawm cov khoom siv hluav taws xob thiab cov khoom siv, uas ua rau cov xaim tam sim no hauv cov hlau. Piv txwv li, lub plhaub ntawm lub tshuab hluav taws xob tuaj yeem cuam tshuam nrog ib qho ntawm peb-theem hluav taws xob, uas tuaj yeem ua rau xau; Lwm qhov teeb meem yog tias qhov hluav taws xob sib txuas ntawm lub casing ntawm cov khoom siv hauv tsev thiab cov xaim nyob hauv lub hauv paus yog tshwm sim los ntawm qee qhov laj thawj, ua rau muaj qhov sib txawv ntawm cov hlau casing ntawm cov khoom siv hauv tsev thiab cov hlau nyob, uas tseem hu ua to. . Qhov tshwm sim ntawm cov hluav taws xob xau tuaj yeem ua rau muaj kev phom sij loj thiab yooj yim ua rau hluav taws xob poob siab rau cov neeg siv tshuab. Hauv qhov no, peb feem ntau siv cov khoom tiv thaiv los tiv thaiv Circuit Court.
Dab tsi iav siv lub tshuab multimeter los ntsuas qhov ntws tawm tam sim no
Yuav ua li cas soj ntsuam tom qab muaj kev sib tsoo tshwm sim? Nov yog ib lo lus nug uas ntau tus phooj ywg txhawj xeeb txog. Tam sim no cia kuv tham txog kuv lub tswv yim ntawm qhov teeb meem no. Rau cov lus nug zoo li no, thawj qhov uas peb xav txog yog siv lub multimeter los xyuas seb puas muaj qhov cuam tshuam ntawm cov khoom siv hluav taws xob. Kuv xav tias muaj ob txoj hauv kev rau kev tshawb nrhiav, ib qho yog siv txoj kev tiv thaiv; Lwm txoj kev yog txoj kev voltage.
1. Kev tiv thaiv txoj kev txhawm rau txhawm rau txhawm rau ua txhaum
Thaum siv txoj kev tiv thaiv kom pom qhov tsis zoo, ua ntej txiav lub zog ntawm cov khoom siv hluav taws xob. Peb tuaj yeem siv lub pointer multimeter RX10K iav. Yog tias nws yog digital multimeter iav, nws tuaj yeem teem rau 200M iav. Siv ib qho kev sojntsuam ntawm lub multimeter los tiv tauj lub voj voog ntawm cov hlau nyob (theem xaim), thiab tom qab ntawd siv lwm qhov kev sojntsuam tiv tauj lub plhaub hlau ntawm cov khoom siv. Nyob rau hauv ib txwm muaj xwm txheej, tus pointer ntawm lub multimeter yuav tsum tso saib ib tug infinite kuj tus nqi. Yog hais tias tus pointer deviates nyob rau lub sij hawm no, nws qhia tau hais tias lub zog rwb thaiv tsev ntawm lub plhaub hlau ntawm cov khoom siv hluav taws xob thiab cov khoom siv hluav taws xob tsis txaus, uas yog cov xau.
