R. Hernández-Molina, Virginia Puyana-Romero, Juan Luis Beira-Jiménez, Arturo Morgado-Estévez, Rafael Bienvenido-Bárcena, Francisco Fernández-Zacarías
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引用次数: 0
摘要
研究目的本研究的目的是评估和比较现有培养箱型号的噪音水平和旨在改善新生儿培养箱声学舒适度的原型。方法:对三种不同型号的培养箱进行测试:对三种不同型号的培养箱和一种名为 "新生儿培养箱声学舒适度"(NICA)的原型进行了测试。测试在实验室条件下测量了内部和外部声压级。噪声指数是指时间间隔为 1 分钟的 A 加权等效连续声压级 (LAeq,T)。结果所获得的结果显示,不同型号的培养箱之间存在差异,但总体而言,它们的数值都很高(约 56/60 dBA)。结果证明,在正常使用这些培养箱的情况下,早产新生儿受到的噪音水平高于国际建议水平。新型婴儿培养箱的设计最大限度地减少了噪音的产生,其噪音水平低于国际建议值。结论从原型(NICA+)获得的结果表明,建议的设计能有效改善新生儿培养箱的声学舒适度。数据显示,原型在正常工作条件下产生的噪音水平明显低于国际建议水平。
Objectives: The purpose of this study was to evaluate and compare the noise levels in current incubator models and a prototype designed to improve acoustic comfort in neonatal incubators. Methods: Tests were carried out on three different models of incubators and a prototype called Neonatal Incubator Acoustic Comfort Class (NICA). The tests measured both internal and external sound pressure levels under laboratory conditions. The noise index has been taken as the A-weighted equivalent continuous sound pressure level (LAeq,T) for a time interval of 1 min. Results: The results obtained show variations between the different models of incubators, although, overall, they are high values (around 56/60 dBA). The results prove that premature newborns under normal conditions of using these incubators are exposed to noise levels above international recommendations. The new incubator design minimizes noise generation and generates noise levels lower than international recommendations. Conclusions: The results obtained from the prototype (NICA+) show the effectiveness of the proposed design in improving acoustic comfort in neonatal incubators. The data show that the noise levels generated by the prototype under normal operating conditions are significantly lower than international recommendations.