Cov lus qhia tswv yim los kuaj cov tshuab kuaj cov tshuab hluav taws xob nrog analog thiab digital multimers
Feem ntau siv cov cuab yeej siv hluav taws xob kev nyiam hluav taws xob yuav yog qhov sib txuam. Ib tug neeg sib txuas tau muaj peev xwm sim voltage, tam sim no, thiab kev tawm tsam. Tshwj xeeb tsim cov multimeters xws li fluiketers ib qho f78 / F88 / F98 muaj ntau lub zog, siv zog ua si, ntsuas kub (nyob hauv lub cav).
Cov ntaub ntawv no yog hais txog yuav ua li cas siv flue muaj siab - Cov Khoom Zoo Tshwj Xeeb Ntau Ntau Ntau Ntau Ntau Ntau Ntau Ntau Ntau Ntau Ntau Ntau Ntau Ntau Cov Tsheb Saib Xyuas Tsheb. Txoj kev analog / digital compital tau sib txawv kiag li cov txiaj ntsig los ntawm lwm cov watches, thiab nws cov accessories ua kom yooj yim dua thiab yooj yim. Txawm hais tias muaj kev vam meej tau siv rau kev kho cov tsheb tau ntau xyoo, feem ntau lawv tsis muaj cov haujlwm tshwj xeeb rau kev kho tsheb. Tam sim no, khoos phis tawj thiab ntau yam sensors tau siv dav hauv cov tsheb, thiab muaj txiaj ntsig zoo heev rau kev saib xyuas tsheb. Cov tswv yim impedance ntawm al early al ((pointer) cov neeg coob dhau tau qis dhau, uas muaj qhov cuam tshuam tseem ceeb ntawm cov hluav taws xob hluav taws xob thaum ntsuas. Hom ntsuas no feem ntau siv 9v voltage rau kev sim ua, yog li nws yog ib qho yooj yim rau kev puas tsuaj hluav taws xob Cheebtsam. Nyob rau hauv xyoo tsis ntev los no, cov motivital tshiab (DMMS) tau hais tawm dav.
Nws cov tswv yim impedance yog siab, thiab nws qhov tseeb thiab kev ua tau zoo dua rau analog meters. Qhov voltage thaum ntsuas kev tawm tsam kuj yog tsawg (feem ntau 5V, flue yog 3.5v), yog li nws yuav tsis puas cov khoom siv ntawm txhua lub sensor. Tab sis kuj tseem muaj teeb meem nrog lub rooj digital. Nws tsis tuaj yeem tso cov ntaub ntawv ntawm qhov nce lossis txo qis hauv kev ntsuas nyeem. Thaum lub sijhawm tso tawm kev sim tshuaj thiab cav tsom xam, nws yuav pom tias cov digital metres tsis tuaj yeem muab cov kev hloov pauv tau ruaj khov.
Fluke tau kov yeej qhov tsis txaus ntseeg ntawm cov tswv yim ntawm digital watches thiab hloov lawv nrog analog / digital ua ke watches. Nws muaj qhov zoo ntawm ob chav digital thiab analog meters rau kev ntsuas fynamic.
Xav Txog Kev Txhaum Kev Txhaum
Thaum daws teeb meem hluav taws xob ntawm lub tsheb, qhov tseem ceeb tshaj plaws yog cov txheej txheem ntawm inferring qhov ua rau ntawm cov malfunction. Tus txheej txheem no tseem ceeb heev. Qhov no yog vim tias koj tsis tuaj yeem pom cov xwm txheej sab hauv thiab tsis tuaj yeem rhuav tshem ntau cov khoom siv xws li txhua yam. Los ntawm kev siv cov kev xav thiab cov kauj ruam tsim nyog, teeb meem tuaj yeem pom sai. Cov cuab yeej tseem ceeb hauv cov txheej txheem no yog multimeter.
Kev faib tawm cov cim
Cov cim ntsuas feem ntau suav nrog voltage, tam sim no, thiab kev tawm tsam. Tab sis feem ntau siv yog voltage. Cov teeb meem koom nrog yog: puas muaj hluav taws xob? Tus nqi voltage yog dab tsi? Dab tsi yuav tsum yog tus nqi ib txwm muaj? Dab tsi yog qhov voltage poob ntawm cov khoom sib txuas lossis kev sib txuas tau? Piv txwv li, yog tias cov lus qhia voltage ntawm ib tug relay yog 12.8v thiab cov zis tawm davhlau ya nyob twg yog 9.2V, cov kev poob qis yog 3.6V. Thov nco ntsoov tias cov txuas ntawm cov xaim yuav tsum tau txiav txim siab ua cov khoom siv thiab yuav tsim ib qho kev tawm hluav taws xob. Yog li nws tseem ua rau ua rau tsis zoo.
