Dab tsi yog qhov kev sib raug zoo ntawm decibels thiab lub suab siv?
Dab tsi yog qhov kev sib raug zoo ntawm decibels thiab lub suab siv?

Video: Dab tsi yog qhov kev sib raug zoo ntawm decibels thiab lub suab siv?

Video: Dab tsi yog qhov kev sib raug zoo ntawm decibels thiab lub suab siv?
Video: Laib laus - txhob nco (Remix DJ Xim vaj ) 2024, Kaum ib hlis
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Qhov ntsuas ntsuas kev siv zog yog cov decibel nplai. Lub rooj sib hais tau muab rau a suab qib 0 decibels (abbreviated 0 dB ); qhov no suab sib raug rau ib kev siv zog ntawm 1 * 10-12 W/m2. A suab uas yog 10 npaug ntau dua (1 * 10-11 W/m2) yog assign a suab qib 10 dB.

Ib yam li ntawd, kev sib raug zoo ntawm lub suab siv rau lub suab siab yog dab tsi?

Suab siv zog (yog hais tias a siab ) thiab Suab Siab Qib (SPL) yog tib yam. Tab sis tsis yog zog . Suab zog yog proportional rau suab siab squared. Yog li ntawd, yog tias koj nce suab PRESSURE los ntawm qhov tseem ceeb ntawm 10, koj tau nce Hwj chim luas = 10^2 = 100.

Tsis tas li ntawd, qhov sib txawv ntawm lub suab thiab lub suab nrov yog dab tsi? Chav tsev hu ua decibel (dB) yog siv los qhia tias qhov piv txwv no tau muab faib ua 10. suab siv zog tsis zoo ib yam li suab siv -nws hais rau koj qib ntawm suab txheeb ze rau kev siv kev siv zog ntau dua li qhov tseeb kev siv zog.

Tom qab ntawd, vim li cas lub suab siv zog ntsuas hauv decibels?

Suab siv zog yog txhais raws li tus suab lub zog ib cheeb tsam. Cov ntsiab lus ib txwm yog qhov ntsuas ntawm suab siv hauv huab cua ntawm tus neeg mloog qhov chaw. Decibels ntsuas qhov ratio ntawm ib tug muab kev siv zog Kuv mus rau lub rooj sib hais kev siv zog , kom qhov chaw pib no siv tus nqi 0 decibels (0 dB).

Unit ntawm kev siv lub suab yog dab tsi?

decibel (dB) - ib qho kev ntsuas ntawm qhov kev siv zog ntawm a suab ; 1/10 ntawm Bel. Decibels yog ib tug txheeb ze chav tsev sib piv ob lub zog; yog li ntawd, ib qho kev siv siab yuav tsum tau qhia.

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