Cov ntsiab lus yooj yim ntawm Cov Digital Motionimeter
Kev xyuas xim
Kev nyab xeeb yog thawj qhov kev txiav txim siab hauv kev tsim cov qauv digital. Lawv yauv mus kuaj kev ywj pheej los ntawm kev lees paub lub chaw ua hauj lwm thiab yog cim nrog cov cim ntawm kev xeem lub chaw ua hauj lwm xws li ul, CSA, thiab VDE.
Teeb meem
Daws daws teeb meem, tseem yog qhov rhiab, yog hais txog cov chaw muaj nuj nqis me me ntawm cov kev ntsuas ntau qhov kev hloov me me hauv lub teeb liab ntsuas. Piv txwv li, yog tias cov digital motimeter muaj kev daws teeb meem ntawm 4V ntau, nws tuaj yeem ntes ib qho kev hloov 1MV thaum ntsuas seb 1V teeb liab. Qhov kev daws teeb meem ntawm cov digital motimeter yog feem ntau qhia nyob rau hauvtus lejlossislus.
Kev daws teeb meem yog qhov ntsuas qhov tseem ceeb. Ib yam li koj yuav tsis siv tus pas ntsuas nrog cov ntsuas ntsuas tsawg dua 18.6 Degree F (koj yuav tsum muaj kev daws teeb meem ntawm 08.6 Degree yog qhov tseem ceeb rau kev ntsuas ntsuas.
Kev ua yog
Qhov tseeb yog hais txog qhov ua yuam kev ntau tshaj plaws nyob rau hauv tshwj xeeb cov kev cai. Hauv lwm lo lus, nws qhia tau tias yuav ua li cas kaw lub multimeter ntsuas tus nqi yog rau qhov ntsuas ntsuas ntawm cov teeb liab. Txog cov multimeters, qhov raug yog feem ntau qhia raws li feem pua ntawm kev nyeem ntawv. Piv txwv li, kev nyeem ntawv raug ntawm 1% txhais tau tias thaum ntau qhov kev sib txuam nrog cov khoom siv 100.0V, qhov tseeb voltage yuav ntau ntawm 99.0V thiab 101.0V.
Cov ncauj lus kom ntxaws ntxaws yuav suav nrog tus nqi tshwj xeeb ntxiv rau qhov tseeb raug, uas yog hais txog tus lej ntawm cov zaub xis. Nyob rau hauv tus piv txwv yav dhau los, qhov tseeb yuav tau hais ua ± (1%+ 2). Yog li, yog hais tias pulul multimeter nyeem 100.0V, qhov ntsuas tiag tiag yuav nyob nruab nrab ntawm 98.8V thiab 101.2V.
Qhov tseeb ntawm analog meters (lossis tus taw kev ua kom muaj txiaj ntsig) raug suav raws li qhov yuam kev ntawm kev ntsuas tag nrho, tsis yog kev nyeem tawm kom pom. Cov raug qhov tseeb ntawm cov neeg muaj kev ua kom muaj cov multimeters yog ± 2% lossis ± 3% ntawm tag nrho cov nplai. Cov ntsiab lus raug yog ntawm cov tshuaj zauv num ntawm digital multimeters nyob nruab nrab ntawm ± (0.7% {{5} {{{{{{{{}), lossis ntau dua.
