Video: Muaj pes tsawg decibels yog 4 Sones?
2024 Tus sau: Oswald Mason | [email protected]. Kawg hloov kho: 2023-12-16 01:03
Qhov qis dua tus nqi sone, qhov yooj yim dua qhov chaw mloog yuav yog. Rau koj lo lus nug, a 4 -sone ntsuam xyuas yog hais txog plaub zaug a nrov raws li 0.9 (~ 1) sone ntsuam xyuas. Sones tsis yog decibels los yog ntim, tab sis lub suab zoo li cas. Sones yog ib qho kev ntsuas linear, zoo li ntiv tes.
Tsuas yog li ntawd, muaj pes tsawg decibels nyob hauv Sone?
40 decibels
Tsis tas li ntawd, Sones piv rau decibels li cas? Kev hloov dua siab tshiab. Raws li Stevens lub ntsiab lus, lub suab nrov ntawm 1 tus tub yog sib npaug rau 40 phons (ib 1 kHz suab ntawm 40 dB SPL). Nrog rau qhov exponent no, txhua 10 phon nce (los yog 10 dB ntawm 1 kHz) tsim yuav luag raws nraim ob npaug ntawm lub suab nrov hauv cov tub.
Piv txwv li, muaj pes tsawg Sones yog 50 decibels?
Kev txiav txim siab ntawm lub suab nrov ntawm cov teeb liab nyob ruaj ruaj yog txhais hauv ISO 532 lossis hauv DIN 45631. ntawm LN = 40 dB sine wave (sinusoid) zaus ntawm f = 1000 Hz.
Dynamic ntau yam | phons | cov tub |
---|---|---|
pp | 50 | 2 |
ppp | 40 | 1 |
32 | 1/2 | |
25 | 1/4 |
Muaj pes tsawg Sones yog lub hood nyob ntsiag to?
Sones rau Decibels Qhov no yog kwv yees qhov tsim nyog ntau ntawm lub suab nrov rau koj range hood . Ib ib sone yog ib tug ntxhi los yog lub suab ntawm ib nyob ntsiag to tub yees. Yim cov tub yog sib npaug rau ib txwm sib tham lossis suab nrov tom qab. Yog li ntawd, qhov qis dua ib sone tus nqi, lub ntsiag to tus hood.
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