Miniature high sensitive pH sensor based on micro optical fiber interferometer

• 主要作者: Oon, Roy Guo Hao
• 其他作者: Chan Chi Chiu
• 格式: Final Year Project
• 語言: English
• 出版: 2017
• 主題: DRNTU::Engineering::Bioengineering
• 在線閱讀: http://hdl.handle.net/10356/72082

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...