Title :
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
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 mArms 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;
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
DOI :
10.1109/SENSOR.2005.1496537
