Miniature high sensitive pH sensor based on micro optical fiber interferometer
A biocompatible pH sensor based on a Mach-Zehnder is proposed with the structure of SMF-TCF-SMF with a taper on the TCF portion. The sensor is then coated with PVA/PAA hydrogel which swells reversibly in response to changes to pH, which leads to a change of refractive index which translate to shifti...
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sg-ntu-dr.10356-720822023-03-03T15:41:06Z Miniature high sensitive pH sensor based on micro optical fiber interferometer Oon, Roy Guo Hao Chan Chi Chiu School of Chemical and Biomedical Engineering DRNTU::Engineering::Bioengineering A biocompatible pH sensor based on a Mach-Zehnder is proposed with the structure of SMF-TCF-SMF with a taper on the TCF portion. The sensor is then coated with PVA/PAA hydrogel which swells reversibly in response to changes to pH, which leads to a change of refractive index which translate to shifting interference dips in the optical spectrum analyzer. The proposed sensor has limited success with a sensitivity of 0.73449 and R2= 0.8947. The range of sensitivity was between pH 2 to 4.2. Bachelor of Engineering (Chemical and Biomolecular Engineering) 2017-05-25T02:53:43Z 2017-05-25T02:53:43Z 2017 Final Year Project (FYP) http://hdl.handle.net/10356/72082 en Nanyang Technological University 26 p. application/pdf |
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DRNTU::Engineering::Bioengineering Oon, Roy Guo Hao Miniature high sensitive pH sensor based on micro optical fiber interferometer |
| description |
A biocompatible pH sensor based on a Mach-Zehnder is proposed with the structure of SMF-TCF-SMF with a taper on the TCF portion. The sensor is then coated with PVA/PAA hydrogel which swells reversibly in response to changes to pH, which leads to a change of refractive index which translate to shifting interference dips in the optical spectrum analyzer. The proposed sensor has limited success with a sensitivity of 0.73449 and R2= 0.8947. The range of sensitivity was between pH 2 to 4.2. |
| author2 |
Chan Chi Chiu |
| author_facet |
Chan Chi Chiu Oon, Roy Guo Hao |
| format |
Final Year Project |
| author |
Oon, Roy Guo Hao |
| author_sort |
Oon, Roy Guo Hao |
| title |
Miniature high sensitive pH sensor based on micro optical fiber interferometer |
| title_short |
Miniature high sensitive pH sensor based on micro optical fiber interferometer |
| title_full |
Miniature high sensitive pH sensor based on micro optical fiber interferometer |
| title_fullStr |
Miniature high sensitive pH sensor based on micro optical fiber interferometer |
| title_full_unstemmed |
Miniature high sensitive pH sensor based on micro optical fiber interferometer |
| title_sort |
miniature high sensitive ph sensor based on micro optical fiber interferometer |
| publishDate |
2017 |
| url |
http://hdl.handle.net/10356/72082 |
| _version_ |
1759858183347634176 |