Txheeb xyuas cov kev ntsuas ntsuas hluav taws xob tsis raug ntawm cov digital motimeter thiab tuav mullamimeter
Yog tias lub ntsuas hluav taws xob ntsuas yog AC lub zog, uas yog 50Hz, thiab ob qho meters yog tsim nyog, nws tsuas yog qhia tau tias kev ntsuas sab hauv yog qhov siab heev. Qhov loj tshaj cuam tshuam rau cov ntsuas ntsuas hluav taws xob tau ntawm tus taw tes sib txawv, uas yog qhov tseem ceeb thiab tsis yog nyob rau tib qho kev txiav txim ntawm qhov ntau. Thaum lub sab hauv kev tawm tsam ntawm cov ntsuas hluav taws xob yog me me, qhov sib txawv tsis tseem ceeb. Thaum lub sab hauv kev tawm tsam ntawm cov ntsuas ntsuas hluav taws xob yog qhov loj, ntsuas qhov ntsuas tau yuav txawv.
Hauv qhov xwm txheej no, ntsuas hluav taws xob yuav tsis yog qhov ntsuas 220V nyob tom qab cov khoom siv hluav taws xob dhau los ntawm cov khoom siv hluav taws xob, lossis cov tshuaj tiv thaiv hluav taws xob.
Tsis suav rau cov kev muaj peev xwm saum toj no, nws tsuas tuaj yeem qhia tau tias ib qho ntawm ob meters yog qhov tsis muaj tseeb thiab yuav tsum tau tu thiab ntsuas.
Muaj qhov yuam kev hauv kev ntsuas hluav taws xob. Ua ntej, koj yuav tsum tau hais meej dab tsi yog qhov zaus ntawm kev ntsuas AC Voltage hauv HZ? Qhov no puas yog voltage ib qho sine yoj ntshiab?
Txhua yam ntawm cov multimeters muaj nyob rau hauv kev ua lag luam tam sim no muaj lawv cov lus teb ntau thiab muaj kev sib tw ntawm lawv phau ntawv ntsuas thaum ntsuas AC voltage. Rau ntau qhov txawv kev ua haujlwm digital, lawv cov lus teb kom ntau {} hz, thiab nws yuav tsum yog sine yoj (distortion tsawg dua lossis sib npaug rau 1%). Qhov ntsuas pom AC Voltage ntau tshaj li cov saum toj no ntau tsis tau lees tias ntsuas ntsuas qhov tseeb. Qhov no yog vim tias feem ntau AC / DC hloov dua kev sib hloov hauv cov multiverers digital tau tsim siv cov khoom siv tsis muaj zog dual062, uas tau txwv tsis pub bandwidth khoom (GBW). Yog li ntawd, digital multivers tsis tuaj yeem ntsuas cov qib siab AC Voltage (ntawm chav kawm, nws kuj yog nyob ntawm seb cov tshuaj ntau tshaj plaws yog them taus).
Raws li rau lub pointer zoo tib yam multimeter (uas yog thawj zaug tsim los ntawm lub taub hau roj hmab tau yooj yim dua ntawm lub taub hau thiab hluav taws xob tau yooj yim dua los txhim kho cov kev paub zoo). Yog li ntawd, ntsuas ntsuas qhov tseeb ntawm qhov tseeb no thiab pheej yig multimeter tseem tsis tuaj yeem piv nrog cov digital motimeter. Qhov ntsuas hluav taws xob ntawm no hom ntsuas hluav taws xob feem ntau tsis tau them rau kev siv hluav taws xob, yog li nws cov lus teb feem ntau {}} hz.
Ob metres ntsuas tib yam nkaus AC Voltage nrog qhov sib txawv ntawm ntau tens ntawm volts. Ua ntej, koj yuav tsum tshuaj xyuas lawv cov hluav taws xob hluav taws xob ntaus nqi hluav taws xob kom pom yog tias ib qho tiv thaiv tau hloov tus nqi? Yog tias txhua yam yog ib txwm muaj, rau tus taw tes multimeter, koj tseem tuaj yeem kuaj xyuas yog tias nws tus header pointer tuaj yeem taw tes rau xoom? Rau cov digital motimeter, koj puas tuaj yeem tshawb xyuas yog tias calibration potentiometer rau nws cov hluav taws xob ntau npaum li cas yog xoob?
Los ntawm txoj kev, yog tias koj xav kom muaj kev ntsuas raug AC Voltage ntawm ib qho kev ua kom nruj, nws raug pom zoo kom yuav ib qho tseeb RMS (TRMS) multimeter. Qhov no muaj ntau yam kom raug ntsuas AC Voltage ntawm ntau yam Werverforms xws li sine vuag, vuag quav, thiab lwm yam, thiab muaj kev ywj siab ntawm distortion.
