Taw qhia rau Kev Ntsuas Mechanism Siv los ntawm AC Ammeter
Cov tsis-sinusoidal waveform muaj me ntsis cuam tshuam rau lub electromagnetic system, hluav taws xob system, thiab thermoelectric ammeter. Rectifying ammeters yog txwv rau sinusoidal waveforms, thiab cov ammeters digital muaj cov kev txwv zoo sib xws. Hauv lub zog hluav taws xob, lub converter ammeter tuaj yeem siv los ntsuas qhov tsis yog sinusoidal tam sim no. Thaum ntsuas qhov tam sim no loj, nws yuav tsum tau siv nrog shunt tshwj xeeb. Thaum ntsuas cov tam sim no loj, nws yuav tsum tau siv nrog tam sim no transformers.
Lub AC ammeter feem ntau yog siv lub ntsuas ntsuas ntawm lub tshuab hluav taws xob electromagnetic ammeter, lub tshuab hluav taws xob ammeter thiab rectifier hom ammeter. Qhov ntsuas qhov tsawg kawg nkaus ntawm kev ntsuas mechanism ntawm lub tshuab electromagnetic yog txog kaum milliamperes. Txhawm rau txhawm rau ntsuas qhov ntsuas ntau, tus lej ntawm cov kauj yuav tsum tau txo qis proportionally thiab cov hlau yuav tsum thickened. Thaum lub ammeter yog tsim los ntawm ib lub tshuab ntsuas hluav taws xob, cov kauj vab txav thiab cov kauj vab zoo li qub tau txuas nrog tib lub sijhawm, thiab qhov tsawg kawg nkaus yog txog kaum tawm milliamperes. Yuav kom nce qhov ntau, tus naj npawb ntawm cov lem ntawm lub static coil yuav tsum tau txo, thiab cov hlau yuav tsum thickened, los yog ob tug zoo li qub coils yuav tsum tau txuas nyob rau hauv parallel es tsis txhob series, ces qhov ntau ntawm ammeter yuav tsum tau muab ob npaug rau. Thaum ntsuas alternating tam sim no nrog ib tug rectifying ammeter, lub ammeter nyeem ntawv yog tseeb tsuas yog thaum lub alternating tam sim no yog ib tug sinusoidal waveform. Ib qho shunt kuj tseem siv tau los txuas ntxiv qhov ntsuas ntau. Tsis tas li ntawd, high-frequency tam sim no kuj tuaj yeem ntsuas nrog cov ntsuas cua sov. Feem ntau ntawm cov AC ammeters loj siv nyob rau hauv lub tshuab fais fab yog 5A lossis 1A electromagnetic ammeters, thiab tau nruab nrog tam sim no transformers nrog qhov tsim nyog tam sim no transformation ratios.
