Full metadata record
| DC Field | Value | Language |
|---|---|---|
| dc.contributor | Department of Electrical and Electronic Engineering | en_US |
| dc.contributor.advisor | Yu, Changyuan (EEE) | en_US |
| dc.creator | Li, Yuexin | - |
| dc.identifier.uri | https://theses.lib.polyu.edu.hk/handle/200/14049 | - |
| dc.language | English | en_US |
| dc.publisher | Hong Kong Polytechnic University | en_US |
| dc.rights | All rights reserved | en_US |
| dc.title | Fiber optic gas pressure sensor based on Fabry-Perot interference | en_US |
| dcterms.abstract | Optical fiber sensors have a wide range of applications and important significance in modern science and engineering. They provide unparalleled advantages for research and applications in various fields by exploiting the special properties of optical fibers to enable accurate measurement and monitoring of optical signals. Optical fiber sensor plays a key role in the fields of physics, chemistry, biology, medicine, environment and so on. Due to its high sensitivity, wide dynamic range, corrosion resistance, and anti-electromagnetic interference, optical fiber sensors are widely used in industrial control, medical diagnosis, environmental monitoring, structural health monitoring and other fields. | en_US |
| dcterms.abstract | This paper presents a novel FPI-based gas pressure sensor consisting of hollow-core fiber (HCF), single-mode fiber (SMF), and twin-core side-hole fiber (TCSHF). The sensor incorporates a single cavity design, eliminating the need for drilling and ensuring a robust and stable structure. Experimental results demonstrate a high sensitivity of approximately 4.4 nm/MPa, along with minimal temperature crosstalk of 0.325 kPa/°C within the temperature range of 20 to 50 °C. This low temperature cross-sensitivity minimizes potential errors and inaccuracies in pressure measurements. In conclusion, the proposed FPI-based gas pressure sensor exhibits promising performance characteristics, making it suitable for various applications such as gas pressure detection, sensing, and environmental monitoring. | en_US |
| dcterms.extent | vii, 43 pages : color illustrations | en_US |
| dcterms.isPartOf | PolyU Electronic Theses | en_US |
| dcterms.issued | 2023 | en_US |
| dcterms.educationalLevel | M.Sc. | en_US |
| dcterms.educationalLevel | All Master | en_US |
| dcterms.accessRights | restricted access | en_US |
Files in This Item:
| File | Description | Size | Format | |
|---|---|---|---|---|
| 8716.pdf | For All Users (off-campus access for PolyU Staff & Students only) | 1.99 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/200/14049