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2006 — Mise au point d'un bouchon d'oreille "intelligent"

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Figure

Figure 1  Atténuation équivalente (ATTeq) sur 8h d'un protecteur auditif porté de façon  intermittente en fonction  du temps (T)  durant lequel  il  n'est pas porté et de  son atténuation nominale (ATTnom)
Figure 2  Comparaison entre  les  NRR publiés en  Amérique du  nord  (valeurs  en  pro- pro-venance des tests de laboratoire) et les valeurs réelles obtenues en milieu de  travail  selon  20 études  indépendantes
Figure 4  Principe des éléments filtrants  interchangeables pouvant être  placés dans  le  canal de mesure du bouchon d'oreille
Figure 7  Localisation des points de pression acoustique dans une oreille non protégée  (à gauche) et protégée (à droite)
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