Yuav hloov neper rau decibel li cas?

2024 Tus sau: Elizabeth Oswald | [email protected]. Kawg hloov kho: 2024-01-13 00:07

Lub ntuj logarithm ntawm qhov piv ntawm ob lub amplitudes yog ntsuas hauv nepers. Qhia tias one neper=8.68 dB.

Koj hloov mus rau decibels li cas?

Tus dB raug xam los ntawm ob qhov sib txawv XdB=10log10(XlinXref)orYdB=20log10(YlinYref). Yog tias koj hloov qhov ntau X uas cuam tshuam rau lub zog lossis lub zog, qhov tseem ceeb yog 10. Yog tias koj hloov qhov ntau Y uas cuam tshuam rau amplitude, qhov tseem ceeb yog 20.

Decibel thiab neper yog dab tsi?

Neper yog ib chav siv los qhia qhov sib piv, xws li nce, poob, thiab tus nqi txheeb ze. … Note 3: One neper Np ≡ 20 / (ln10)=8.685889638 dB. Lus Cim 4: Lub neper feem ntau yog siv los qhia qhov voltage thiab tam sim no piv, whereas. tus decibel kuj tseem siv los nthuav qhia lub zog piv.

Koj yuav ua li cas hloov NP M rau dB?

dB↔Np 1 Np=8.6860000036933 dB.

Tus nqi zog ntawm ib decibel yog dab tsi?

Ib tus decibel (0.1 bel) sib npaug 10 npaug ntawm cov logarithm ntawm lub zog piv . Qhia tawm raws li cov qauv, qhov kev siv ntawm lub suab hauv decibels yog 10 log ₁₀ (S₁/S _{2), qhov twg S}1 _{thiab S}2 _{yog qhov siv zog ntawm ob lub suab; piv txwv li, ob npaug ntawm qhov kev siv lub suab txhais tau tias nce me ntsis ntau dua 3 dB.}