Tanujaya, Harto A Study on Vibration Dynamics of Bionic Auditory Membrane for Artificial Cochlea. A Study on Vibration Dynamics of Bionic Auditory Membrane for Artificial Cochlea.
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Abstract
The cochlea in the inner ear is an important organ for hearing. In this work develop artificial cochlea using P(VDF.TrFE)to realize the fully implantable system for sensorineural hearing loss by microfabrication and thin films technologies. The device consists of a piezoelectric membrane made of P(VDF-TrFE) fabricated on a silicon substrate and discrete electrodes on the surface. The membrane converts mechanical deformation induced by acoustic waves to electric signals due to the piezoelectric effect. The geometry of the membrane is designed to realize the frequency selectivity at the range of 500 - 5,000 Hz. The experiment is canied out to investigate the vibrating characteristics of the membrane. To model the cochlear duct, the device is mounted on a substrate with a fluid channel filled with silicone oil. The results show that the resonant frequency is changed along the position due to the varyin g local mechanical boundary condition governed by the geometrical configuration. Furthermore, bas ed on the relationship between position and the resonant frequency, it is found that the device can realize the frequency selectivity at the range of 1.45 - l0 .65 kHz.
| Item Type: | Article |
|---|---|
| Subjects: | Penelitian > Fakultas Teknik |
| Divisions: | Fakultas Teknik > Teknik Mesin |
| Depositing User: | Puskom untar untar |
| Date Deposited: | 12 Mar 2021 03:58 |
| Last Modified: | 12 Mar 2021 03:58 |
| URI: | http://repository.untar.ac.id/id/eprint/14849 |
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