Ntsuas qhov voltage ntawm 2400hz nrog ib tug multimeter, yog vim li cas yog qhov tso tawm voltage tus nqi tsis raug?
Ua ntej ntawm tag nrho cov, peb yuav tsum to taub tus nqi ntawm cov multimeter xeem yog hais txog tus nqi zoo, peb tam sim no feem ntau siv multimeter, ib tug pointer multimeter thiab digital multimeter, pointer multimeter, AC voltage ntau yog 10v rau 1000v. , qhov tsawg tshaj plaws yog 0.2v, AC voltage ntau yog ib qho yooj yim rectifier kab yog tsim los rau 50Hz (US Nyiv, 60Hz) AC voltage test, cov kab sab hauv suav nrog rectifier diodes tsis suav nrog cov yam ntxwv siab, yog ntsuas lub teeb liab zaus tshaj 1KHz, nws yuav tsis raug tso cai.
Yuav ua li cas hais txog cov txiaj ntsig ntawm kev ntsuas digital, ib zaug ib tus neeg mob hnyav nrog lub oscilloscope thiab ib qho Lee thiab qee cov grams ntawm ob lub multimeters los ua qhov kev sib piv.
Nws tuaj yeem pom tau tias qhov ntsuas tau ntawm 1KHz thiab 2KHz tseem yog tus nqi siv, thiab qhov yuam kev yuav loj yog tias nws siab dua.
Digital multimeter yog ib qho kev ntsuas ntawm IC sab hauv, daim duab kos duab muab tso tawm tsis muaj kev nkag siab ntau, cov ntaub ntawv AC voltage ntawm cov yam ntxwv siab zaus ntawm IC no nrog bandwidth ntawm kev ua haujlwm amplifier (OP) thiab IC AD hloov pauv tus nqi. muaj feem xyuam rau cov kev txwv no kom paub meej tias cov ntsiab lus yuav ntau dua, thiab rau lub sijhawm, tsuas yog hais txog nws.
Yog tias peb xav kom raug kuaj cov teeb liab hauv 2.4KHz band, peb yuav tsum siv lub suab millivoltmeter. Cov cuab yeej no yog cov cuab yeej siv feem ntau rau kev ntsuas suab, siv los ua hom pointer, tam sim no yog digital.
