Peak to Peak vs RMS
Peak rau Peak thiab RMS amplitudes yog ob qhov kev ntsuas ntawm qhov hloov pauv / qhov chaw. Peak rau ncov amplitude yog ntsuas los ntawm lub teeb liab thiab RMS tus nqi yuav tsum tau muab los ntawm kev ntsuas.
Peak to Peak
Peak amplitude yog qhov siab tshaj plaws uas tau txais los ntawm lub teeb liab / qhov chaw hauv ib lub sijhawm. Yog hais tias daim ntawv ntawm lub teeb liab yog periodic thiab uniform, ces ncov qhov tseem ceeb yog tas mus li thoob plaws. Xav txog qhov sinusoidal nthwv dej raws li qhia hauv qab no.
Txhawm rau sawv cev rau lub zog ntawm lub teeb liab, feem ntau siv tus nqi siab tshaj plaws los ntawm xoom lossis tus nqi siab tshaj ntawm lub teeb liab. Lwm lub sij hawm siv yog lub ncov rau lub ncov tus nqi. Peak rau ncov tus nqi ntawm ib qho system yog qhov sib txawv ntawm qhov siab tshaj plaws amplitude nyob rau hauv qhov kev taw qhia tsis zoo thiab nyob rau hauv cov kev taw qhia zoo. Ntxiv dua thiab, yog tias daim ntawv nthwv dej tsis sib xws thiab tsis tu ncua, lub ncov mus rau qhov siab tshaj tus nqi yog qhov tas mus li.
Cov ntsiab lus no yog siv hauv suab thev naus laus zis, hluav taws xob engineering, thiab ntau lwm qhov chaw siv hluav taws xob hloov pauv.
RMS (Root Mean Square)
RMS Amplitude lossis hauv paus txhais tau tias Square Amplitude yog qhov muab tau los ntawm kev txhais cov khoom ntawm lub teeb liab. Rau lub sinusoidal waveform raws li qhia saum toj no, RMS tus nqi ntawm lub teeb liab yog tau los ntawm tus qauv
Txoj kev xav tau ntawm RMS qhov tseem ceeb los ntawm qhov tseeb tias qhov nruab nrab ntawm lub nthwv dej hauv ib lub sijhawm (T) yog xoom. Qhov zoo ib nrab ntawm lub amplitude tshem tawm qhov tsis zoo ib nrab. Nws txhais tau hais tias tsis muaj nthwv dej kis tau rau lub sijhawm ntawd, uas tsis muaj tseeb hauv qhov tseeb.
Yog li ntawd, qhov amplitude qhov tseem ceeb yog squared (thaum squared, tag nrho cov txiaj ntsig tau zoo). Tom qab ntawd noj qhov nruab nrab muab tus lej zoo, tab sis qhov tseem ceeb ntau dua li qhov tseeb. Lub hauv paus square ntawm qhov nruab nrab ua qhov taw qhia rau qhov nruab nrab amplitude ntawm nthwv dej.
RMS voltage thiab RMS tam sim no tseem ceeb hauv AC txoj kev xav ntawm hluav taws xob. RMS qhov tseem ceeb ntawm qhov voltage thiab tam sim no muab qhov nruab nrab voltage thiab tam sim no hauv cov khoom siv fais fab loj. Lub hwj chim dissipated thaum alternating tam sim no dhau los ntawm ib tug tsis kam yog xam siv VRMS thiab IRMS
P=VRMSIRMS
RMS qhov tseem ceeb ntawm qhov hluav taws xob thiab tam sim no tsim lub zog tib yam li tsim los ntawm DC voltage thiab DC tam sim no ntawm tib qhov nqi dhau los ntawm qhov tsis kam.
Peak to Peak vs RMS
• Peak tus nqi yog qhov tseem ceeb ntawm qhov siab tshaj plaws amplitude variation nyob rau hauv txhua txoj kev. Rau lub teeb liab tsis sib xws, qhov tseem ceeb no yog qhov tas mus li.
• Qhov sib txawv ntawm qhov siab tshaj plaws ntawm qhov zoo thiab qhov tsis zoo yog lub npe hu ua Peak mus rau Peak amplitude.
• RMS amplitude yog ib qho amplitude derived, los sawv cev qhov nruab nrab amplitude ntawm ib qho kev hloov teeb liab. Rau qhov sinusoidal nthwv dej, nws tuaj yeem muab tau raws li
