| abstract |
The application discloses a kind of noise attentuation newborn incubator (NANI), and the NANI includes being configured to the sound in time t i Amplitude ratio (AmpRat ti ) it is reduced to the critical amplitudes ratio (AmpR of the sound measured in predetermined time Δ t QVΔt ) or lower sound attenuating module (SAM).The SAM includes passive noise decaying, active noise decaying or the two.A method of for making newborn's incubator sound attenuating, it is characterised in that: (a) obtains noise attentuation newborn incubator (NANI), and the NANI includes being configured to AmpRat ti It is reduced to AmpR QVΔt Or lower sound attenuating module (SAM)；(b) newborn is contained in the NANI；And the noise attentuation (c) is made by least one described SAM, to change sound signature. |