Dang, Wenjie and Li, Zeren and Dan, Jinxiao and Nan, Pengyu and Xin, Guoguo and Lim, Kok -Sing and Ahmad, Harith and Yang, Hangzhou (2023) High sensitivity fiber Bragg grating (FBG) sensor based on hollow core silica tube (HCST) sensitization for gas pressure and temperature discrimination. Optical Fiber Technology, 75. ISSN 1068-5200, DOI https://doi.org/10.1016/j.yofte.2022.103202.
Full text not available from this repository.Abstract
A fiber Bragg grating (FBG) based sensor is proposed for the measurement of gas pressure under extreme tem-perature condition. Two FBG sensors of different cladding diameters are encapsulated and sealed in a fine hollow-core silica tube (HCST) by using a high temperature resistant ceramic adhesive (HTA). In the observation, the FBG sensors are practically insensitive to pressure change at room temperature and their pressure sensitivities are negatively higher at higher temperature. This can be attributed to the temperature dependence of the HTA's Young's modulus. The findings show that the sensors have a maximum pressure and temperature sensitivity of-0.993 nm/MPa and 13.8 pm/degrees C for a pressure range of 0-1 MPa over the temperature range of 17-400 degrees C. Despite the high pressure-temperature cross sensitivities, an interesting approach based on a 2 x 2 character-istics matrix is demonstrated for discriminative measurement of pressure and temperature
| Item Type: | Article |
|---|---|
| Funders: | Science Technology Plan of ShaanXi [Grant No: 2020GY-187], Science Technology Plan of Yulin City [Grant No: CXY-2020-011-08], Fundamental Research Grant Scheme, Ministry of Education Malaysia [Grant No: FRGS/1/2022/STG07/UM/02/6] |
| Uncontrolled Keywords: | Fiber Bragg grating; High temperature; Gas pressure sensor |
| Subjects: | T Technology > TA Engineering (General). Civil engineering (General) T Technology > TK Electrical engineering. Electronics Nuclear engineering |
| Divisions: | Faculty of Science |
| Depositing User: | Ms Zaharah Ramly |
| Date Deposited: | 27 Nov 2024 04:21 |
| Last Modified: | 27 Nov 2024 06:45 |
| URI: | http://eprints.um.edu.my/id/eprint/39213 |
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