Yuav ua li cas koj xam qhov raug (los yog tsis paub tseeb) ntawm ib tug digital multimeter?
Qhov tseeb ntawm multimeter, tseem hu ua qhov tsis paub tseeb los ntawm qee cov tuam txhab, feem ntau sau tias "hauv ib xyoos tom qab tawm hauv lub Hoobkas, ntsuas ntawm qhov ntsuas kub ntawm 18 ° ~ 28 ° (64 ° F ~ 82 ° F) thiab txheeb ze av noo. tsawg dua 80%, ± ({{10}}.8% ntawm kev nyeem + 2 lo lus). Ntau tus neeg yuav khoom, lossis cov neeg siv, tsis paub meej txog qhov no thiab feem ntau nug. Kuv xav tias ntawm no, muaj ib lub 'meter', nyob rau hauv ib tug tej yam ntau yam, piv txwv li, yog DC 200V iav, yog sau nyob rau hauv no txoj kev, ntsuas tus nqi, nyob rau hauv lub 'meter' qhia 1{{ 23}0.0, lub sij hawm no nws tus nqi raug, yuav tsum ntau npaum li cas. Kuv xav tias rau cov neeg siv, tuaj yeem tsis quav ntsej qhov tseeb ntawm kev suav, ncaj qha uas yog DC 100V tuaj yeem yog. Raws li cov neeg tsim khoom lag luam qhov tseeb suav, hauv kev ntsuas 100V (duab 100.0), qhov yuam kev yog ± (0.8% * 1000 + 2)=± 10, uas yog , qhov yuam kev ntawm 1.0V, txhua tus neeg hauv kev hloov pauv ntawm kev nyeem ntawv, tsis txhob coj mus rau hauv tus account tus lej lej los tso saib tus nqi ntawm qhov hloov pauv ntawm kev suav ntawm tus lej suav, ntxiv rau tus lej lej thiab tom qab ntawv nyeem thawj zaug mus rau qhov freight tus nqi, xws li cov ntaub ntawv no, ces tus nqi raug ntawm 100.0 ± 1.0, yuav tsum yog DC 100.0 ± 1.0, tus nqi raug. 1.0, yuav tsum nyob nruab nrab ntawm 99.0 ~ 101.0V DC.
Dab tsi yog qhov txawv ntawm peb-thiab-ib-ib-ib nrab thiab plaub-thiab-ib-nrab tus lej ntawm digital multimeter?
Peb thiab ib nrab tus lej kuj tseem hu ua 3 1/2 tus lej (nyeem li peb thiab ib nrab tus lej) thiab plaub thiab ib nrab tus lej tseem hu ua 4 1/2 (nyeem ua plaub thiab ib nrab tus lej) . Peb paub tias qhov ntau npaum li cas, tom qab quantization, hloov mus rau digital, qhov tseeb ntawm nws cov sawv cev muaj feem xyuam nrog cov khoom siv, ntau cov khoom, qhov ze rau tus nqi qub, qhov tseeb dua (qhov no feem ntau, tsis hais txog. Lwm qhov xwm txheej, yog tias tus nqi sib npaug ntawm 1.00000V, tom qab ntawd, nrog tus sawv cev ib-ntsis thiab N-ntsis sawv cev yog tib yam (:). yog, plaub thiab ib nrab khoom yog qhov tseeb tshaj peb thiab ib nrab khoom.
