Cov lus qhia siv rau cov neeg muaj txiaj ntsig hauv cov khoom siv hluav taws xob thiab ntsuas
Caw "yog cov lus luv rau motionimeter, uas yog cov khoom siv hluav taws xob, cov peev xwm ntau, thiab cov neeg nyiam tshaj plaws tam sim no, thiab cov neeg muaj suab nrov tshaj plaws tam sim no, thiab cov neeg muaj zog tshaj plaws tam sim no, thiab cov neeg nyiam tshaj plaws tam sim no, thiab cov neeg nyiam siv hluav taws xob. multimeters. Lawv txhua tus muaj lawv tus kheej. Mastering kev siv ntawm cov tshuab hluav taws xob. Yog tias koj tsis ntseeg nws, saib ntawm peb ib hlis npe!
Ntau tus neeg tau muab faib ua hom phiaj thiab digital, txhua tus nrog nws tus kheej yooj yim. Nws yog qhov nyuaj hais uas yog qhov zoo lossis tsis zoo, thiab nws yog qhov zoo tshaj plaws kom muaj ib tus taw thiab ib hom digital. Tus taw tes hom MF30 motiveter yog txaus rau kev tsim khoom siv hluav taws xob txaus, uas yog tus qauv classic. Kuj tseem muaj cov qub tub rog MF500 multidimeter thiab pheej yig mf50 multimeter thiab feem ntau tuaj yeem yuav ntawm cov khw muag khoom noj.
Peb txoj haujlwm yooj yim ntawm kev sib sau yog los ntsuas tsis kam, voltage, thiab tam sim no, yog li cov neeg ua ntej hu ua nws multimeter.
Tam sim no, multimeters tau ntxiv ntau lub zog tshiab, xws li ntsuas cov nqi, kev ntsuas hluav taws xob ua tau zoo, thiab lwm yam. Kuj tseem muaj kev sib tham ntsuas cov lus.
Qhov loj tshaj plaws tshwj xeeb ntawm pululitional ntawm multimeter yog nws muaj ntau dua siab tshiab hloov, uas yog siv hloov kho ntau yam haujlwm. Yeej, ib {- yog siv los sawv cev DC tam sim no, nrog MilliaMpere thiab ampere cov qib tau muab faib ua ntau theem. V -} sawv ntsug rau kev ntsuas dc voltage.
Kev ua kom siab muaj multimeters muaj millivolt ntau thiab voltage ntau. V ~ yog siv rau ntsuas AC qhov hluav taws xob. Ntsuas ac tam sim no. Kev ntsuas tsis kam nyob rau hauv ω Ohm ntau yam. Rau tus pointer multimeter, xoom kev hloov kho yog tsim nyog txhua zaus cov kev tiv thaiv tau hloov. Xoom kev hloov kho yog muab cov kev ua haujlwm liab thiab dub ntawm lub zog sib sau ua ke, thiab tom qab ntawd tig lub xo me hloov pob qhov rooj kom lub pointer taw rau lub xoom. HFE siv los ntsuas qhov tam sim no Amplification qhov tseeb ntawm tus transistor. Tsuas ntxig rau peb pins ntawm lub transistor mus rau hauv qhov sib haum qhov ntawm cov maladusal huam sib luag los ntsuas HFE tus nqi. Nco ntsoov tias E, B, thiab C trailerors ntawm PNP transistors p}} hom semiconductors, ntsig, thaum NPN cov tsis sib xws.
Siv ob lub xov hlau kom ntsuas tsis kam yooj yim heev, tab sis nws tuaj yeem ua rau kev ntsuas tsis yog. Los ntawm kev siv ntau sib xyaw nrog 4 xaim thiab cais cov chaw nres tsheb thiab ntsuas cov chaw nres tsheb thiab qhov yuam kev no tuaj yeem yuav luag tshem tawm. Hmoov tsis zoo, ntxiv kev ua yeeb yam ntxiv thiab kev sib txuas tau nce qhov nyuaj ntawm kev ntsuas. Koj yuav tsum txuas ntxiv cov cai ntxiv, thiab thaum hloov los ntawm voltage los tiv, tej zaum koj yuav tau hloov cov clips thiab probes. Tam sim no, muaj lub tswv yim tshiab, 'ntsuas kev tiv thaiv nrog lub tshuab sib xyaw ua ke thiab yog', uas yuav qhia koj ntsuas ntsuas 4-hlau tiv taus ob leeg.
