Yuav ua li cas muaj pes tsawg cov kauj ruam uas ib tug digital multimeter coj los ntsuas qhov tsis kam?
(1) Ua ntej, ntsuas qhov ntsuas tus nqi ntawm cov resistor. Yog hais tias nws yog infinite, lub resistor yog internally disconnected. Tom qab ntawd xam cov nqi tiv thaiv los ntawm lub nplhaib xim ntawm qhov kev tawm tsam (kev nyeem ncaj qha yog txaus yog tias koj kos nws ncaj qha), thiab muab piv nrog tus nqi ntsuas. Yog tias qhov ua yuam kev me me (yuav tsum tsawg dua qhov kev tso cai yuam kev cim rau ntawm tus resistor), qhov tsis kam yog qhov qub. Yog tias qhov yuam kev loj, nws txhais tau hais tias tus resistor puas thiab siv tsis tau.
(2) Dub, xim av, liab, txiv kab ntxwv, daj, ntsuab, xiav, ntshav, grey, dawb, kub, nyiaj. 0, 1, .2, .3, 4, .5, 6, .7, 8, .9, . 5 feem pua , 10 feem pua yog lub nplhaib penultimate, qhia tus naj npawb ntawm xoom. Tus lej kawg qhia txog qhov yuam kev.
Muaj ib qho kev nco zoo rau txoj cai no: xim av, ib qho liab, ob lub txiv kab ntxwv yog peb, plaub daj, tsib ntsuab thiab rau yog xiav, xya ntshav, yim greys thiab cuaj yog dawb, dub yog xoom, kub, tsib thiab nyiaj. yog kaum.
Piv txwv li, liab, daj, xim av, kub txhais tau tias 240 euros.
Cov xim nplhaib kuj tau muab faib ua plaub lub nplhaib thiab tsib lub nplhaib, thiab plaub lub nplhaib feem ntau yog siv.
Lub nplhaib penultimate tuaj yeem yog kub (xws li ×{{0}}}.1) thiab nyiaj (xws li x0.01), thiab lub nplhaib kawg yuam kev tuaj yeem tsis muaj xim (20 feem pua).
Lub tsib-ntiv nplhaib resistor yog ib tug precision resistor, thawj peb lub nplhaib yog cov lej muaj nuj nqis, thiab lub nplhaib kawg yog qhov yuam kev xim nplhaib, feem ntau yog peb xim kub, nyiaj thiab xim av. Qhov yuam kev ntawm kub yog 5 feem pua, qhov yuam kev ntawm nyiaj yog 10 feem pua, thiab qhov yuam kev ntawm xim av yog 1 feem pua, qhov yuam kev ntawm tsis muaj xim yog 20 feem pua, thiab qee zaus muaj qhov yuam kev uas sawv cev los ntawm ntsuab, thiab cov yuam kev ntawm ntsuab yog 0.5 feem pua. Precision resistors feem ntau yog siv hauv tub rog, aerospace thiab lwm yam.
Lub nplhaib xim yog qhov ua tau zoo thaum ntxov los pab tib neeg paub qhov txawv ntawm qhov sib txawv ntawm qhov sib txawv. Tam sim no nws tseem siv dav, xws li cov khoom siv hauv tsev, cov cuab yeej hluav taws xob, thiab cov khoom siv hluav taws xob, uas feem ntau tuaj yeem pom.
