1. Development of a bio-inspired angular acceleration sensor : towards the non-invasive investigation of inner ear pathologies
- Author
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Etienne Puyoo, Laurent Gremillard, Lucian Roiban, Alice Vieren, E. Ionescu, Institut des Nanotechnologies de Lyon (INL), Centre National de la Recherche Scientifique (CNRS)-Institut National des Sciences Appliquées de Lyon (INSA Lyon), Université de Lyon-Institut National des Sciences Appliquées (INSA)-Université de Lyon-Institut National des Sciences Appliquées (INSA)-École Centrale de Lyon (ECL), Université de Lyon-Université Claude Bernard Lyon 1 (UCBL), and Université de Lyon-École supérieure de Chimie Physique Electronique de Lyon (CPE)
- Subjects
Vestibular system ,Physics ,inner ear ,Angular acceleration ,Semicircular canal ,Acoustics ,vestibular system ,Non invasive ,Transduction (psychology) ,flexible sensor ,bio-inspired angular acceleration sensor ,Pulse (physics) ,medicine.anatomical_structure ,medicine ,piezoresistive cantilever ,Inner ear ,Development (differential geometry) ,[SDV.IB]Life Sciences [q-bio]/Bioengineering - Abstract
International audience; In this paper, we introduce the development of a bio-inspired system that mimics the angular acceleration sensor function provided by the vestibular system. The prototype is made of a Plexiglas piece that presents the pattern of a semicircular canal at scale 10, with a simplified geometry. A flexible piezoresistive cantilever integrated on polyimide substrate is used to model the electro-mechanical transduction of the cupula/hair cells system. The electro-mechanical response of the complete system is analyzed when submitted to both pulse and sine rotational excitations. It is demonstrated that the biomimetic system only responds to one rotational axis, and is also sensitive to the rotational direction. We also validate that the prototype actually responds to the expected medium vestibular frequencies (from 0.16Hz to 0.64Hz).
- Published
- 2021
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