Analysis and design of differential electromagnetic transducer for implantable middle ear using finite element method

Author

Kim, Min-Kyu ; Yoon, Young-Ho ; Lim, Ilyung-Gyu ; Song, Byung-Seop ; Park, Il-Yong ; Cho, Jin-Ho

Author_Institution

Dept. of Med. & Biol. Eng., Kyungpook Nat. Univ., Taegu, South Korea

Volume

1

fYear

2005

Firstpage

796

Abstract

A differential electromagnetic transducer (DET), which has similar frequency characteristics to those of the normal middle ear, has been designed and implemented for an implantable middle ear (IME). In order to optimize the DET characteristics that are practically determined by the electromagnetically forced vibration, a finite element analysis (FEA) simulation is carried out. The designed DET according to the simulation results is implemented using micro-machining technology. The vibrating displacement of the DET is about 200 nm in the range of 0.1 to 1.5 kHz when 1.5 mA_rms current is applied to the coil.

Keywords

acoustic transducers; electromagnetic devices; finite element analysis; hearing aids; micromachining; prosthetics; vibrations; 0.1 to 1.5 kHz; 1.5 mA; 200 nm; DET frequency characteristics; DET vibrating displacement; FEA; IME; differential electromagnetic transducer; electromagnetically forced vibration; finite element method; implantable middle ear; micromachining; Acoustic transducers; Auditory system; Biomedical transducers; Biomembranes; Coils; Ear; Electromagnetic analysis; Finite element methods; Frequency; Humans;

fLanguage

English

Publisher

ieee

Conference_Titel

Solid-State Sensors, Actuators and Microsystems, 2005. Digest of Technical Papers. TRANSDUCERS '05. The 13th International Conference on

Print_ISBN

0-7803-8994-8

Type

conf

DOI

10.1109/SENSOR.2005.1496537

Filename

1496537