Humidity sensing using plastic optical fibers

• Main Authors: Tay, Chia Meng, Tan, Khay Ming, Tjin, Swee Chuan, Chan, Chi Chiu, Rahardjo, Harianto
• Other Authors: School of Civil and Environmental Engineering
• Format: Article
• Language: English
• Published: 2011
• Subjects: DRNTU::Engineering::Civil engineering::Geotechnical; DRNTU::Engineering::Electrical and electronic engineering::Optics, optoelectronics, photonics
• Online Access: https://hdl.handle.net/10356/94403; http://hdl.handle.net/10220/7311
• Institution: Nanyang Technological University

The use of plastic optical fibers (POFs), curved at the sensing point and coated with cobalt chloride (CoCl2) and gelatin as the overlay material, for relative humidity sensing is demonstrated in this paper. The fiber-core diameter and bending radius of the sensing point affects the sensitivity of t...