| Author: | Wong, Cheung-lam |
| Title: | Development of mathematical models for the hearing mechanism |
| Degree: | M.Sc. |
| Year: | 2000 |
| Subject: | Hearing -- Mathematical models Hong Kong Polytechnic University -- Dissertations |
| Department: | Multi-disciplinary Studies Jockey Club Rehabilitation Engineering Centre |
| Pages: | v, 59 leaves : ill. ; 30 cm |
| Language: | English |
| Abstract: | A review on the mathematical models used for the hearing mechanism was made. The lumped parameter model was selected for testing out the frequency response characteristics of the middle ear. A sound pressure wave was applied to the eardrum. The gain offered by the system was found to vary significantly with the area ratio between the eardrum and the oval window, but less sensitive to structural components in intact in the human audible frequency range. An attempt has been made to simulate a simple insert as a middle ear prosthesis which is found to perform like an ideal transformer matching the impedance loss excellently. Fine tuning of the material stiffness or contact means with the eardrum may help in adjusting the necessary gain. Further works are recommended in the areas of finite element modelling to take into account assumptions on the middle ear bones as rigid bodies and the compliance of the ear cavity. |
| Rights: | All rights reserved |
| Access: | restricted access |
Files in This Item:
| File | Description | Size | Format | |
|---|---|---|---|---|
| b15179072.pdf | For All Users (off-campus access for PolyU Staff & Students only) | 2.23 MB | Adobe PDF | View/Open |
Copyright Undertaking
As a bona fide Library user, I declare that:
- I will abide by the rules and legal ordinances governing copyright regarding the use of the Database.
- I will use the Database for the purpose of my research or private study only and not for circulation or further reproduction or any other purpose.
- I agree to indemnify and hold the University harmless from and against any loss, damage, cost, liability or expenses arising from copyright infringement or unauthorized usage.
By downloading any item(s) listed above, you acknowledge that you have read and understood the copyright undertaking as stated above, and agree to be bound by all of its terms.
Please use this identifier to cite or link to this item:
https://theses.lib.polyu.edu.hk/handle/200/3258