Universiti Teknologi Malaysia Institutional Repository

Influence of coating thickness of polyimide for moisture sensing

Rohizad, Siti Nur Aizatti and Daud, Suzairi and Ahmad Noorden, Ahmad Fakhrurrazi (2021) Influence of coating thickness of polyimide for moisture sensing. In: International Laser Technology and Optics Symposium in Conjunction with Photonics Meeting 2020, ILATOSPM 2020, 22 October 2020 - 23 October 2020, Johor, Malaysia.


Official URL: http://dx.doi.org/10.1088/1742-6596/1892/1/012017


This work focused on the effect of existence of polyimide coated fibre Bragg grating (FBG) for moisture sensing in stingless bee. The moisture sensitive material namely polyimide (PI) was used to improve the sensitivity of the fibre optic sensor. By taking the benefits from amine groups in 3-(aminopropyl) triethoxysilane (APTES), PI is coated onto the segment of FBG through covalent interaction. Different thickness of PI coated FBG as well as determination and optimization of the designated sensor has been done. 3 layers of polyimide coating were used to improve the sensitivity of moisture sensing, and the sensitivity of coated fibre been analysed.

Item Type:Conference or Workshop Item (Paper)
Uncontrolled Keywords:Bragg wavelength, Fibre Bragg grating, honey, moisture, sensor
Subjects:Q Science > QC Physics
ID Code:96177
Deposited By: Yanti Mohd Shah
Deposited On:04 Jul 2022 16:03
Last Modified:04 Jul 2022 16:03

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