Author:
Mououdi Mohammad Amin,Akbari Jafar,Mohammadi Khoshoei Maryam
Abstract
In this study we aimed to obtain anthropometric measurements of external ear dimensions for designing hearing protection devices (HPDs). We measured 3 dimensions of left and right ears of 153 operational workers and compared the measured data with earplugs (Eps) and earmuffs (Ems). The mean (± SD) earhole length, pinna length, and pinna width for the subjects were 14.6 (± 2.5), 62.8 (± 5.0), and 34.8 (± 4.2) mm, respectively. The mean longitudinal and transverse diameters of the Ems for the ear were close to the 95th and 97.5th percentile, respectively. The Ems met the optimal threshold of ergonomic design; however, the Eps required a better design.
Subject
General Engineering,Human Factors and Ergonomics
Cited by
9 articles.
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