RT journal article T1 Silent Neonatal Incubators, Prototype Nica+ A1 Hernández Molina, Ricardo A1 Puyana Romero, Virginia A1 Beira Jiménez, Juan Luis A1 Morgado Estévez, Arturo A1 Bienvenido Bárcena, Rafael A1 Fernández Zacarías, Francisco A2 Ingeniería Eléctrica A2 Ingeniería en AutomáticaElectrónica, Arquitectura y Redes de Computadores A2 Ingeniería Mecánica y Diseño Industrial A2 Máquinas y Motores Térmicos K1 neonates K1 sound pressure K1 incubator K1 noise source K1 NICU K1 infants AB Objectives: The purpose of this study was to evaluate and compare the noise levelsin current incubator models and a prototype designed to improve acoustic comfort in neonatalincubators. Methods: Tests were carried out on three different models of incubators and a prototypecalled Neonatal Incubator Acoustic Comfort Class (NICA). The tests measured both internal andexternal sound pressure levels under laboratory conditions. The noise index has been taken asthe 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 newbornsunder normal conditions of using these incubators are exposed to noise levels above internationalrecommendations. The new incubator design minimizes noise generation and generates noise levelslower than international recommendations. Conclusions: The results obtained from the prototype(NICA+) show the effectiveness of the proposed design in improving acoustic comfort in neonatalincubators. The data show that the noise levels generated by the prototype under normal operatingconditions are significantly lower than international recommendations. PB Multidisciplinary Digital Publishing Institute MDPI SN 2624-599X YR 2024 FD 2024-07-15 LK http://hdl.handle.net/10498/33001 UL http://hdl.handle.net/10498/33001 LA eng DS Repositorio Institucional de la Universidad de Cádiz RD 10-may-2026