Optical properties enhancement with multilayer coating technique of additive‐enhanced zinc oxide nanostructure for fiber Bragg grating humidity sensor

2021 ◽  
Author(s):  
Muhammad Arif Riza ◽  
Yun Ii Go ◽  
Robert R. J. Maier ◽  
Sulaiman Wadi Harun ◽  
Siti Barirah Ahmad Anas
Keyword(s):  
Zinc Oxide ◽  
Optical Properties ◽  
Fiber Bragg Grating ◽  
Humidity Sensor ◽  
Multilayer Coating ◽  
Bragg Grating ◽  
Coating Technique ◽  
Zinc Oxide Nanostructure

Enhanced Relative Humidity Sensing Based on a Tapered Fiber Bragg Grating with Zinc Oxide Nanostructure-Embedded Coatings

2017 ◽  
Vol 23 (6) ◽  
pp. 5452-5456
Author(s):  
Aisyah Mohamad Aris ◽  
Husna Abdul Rahman ◽  
Ninik Irawati ◽  
Sulaiman Wadi Harun ◽  
Kok-Sing Lim ◽  
...  
Keyword(s):  
Zinc Oxide ◽  
Relative Humidity ◽  
Fiber Bragg Grating ◽  
Bragg Grating ◽  
Humidity Sensing ◽  
Tapered Fiber ◽  
Zinc Oxide Nanostructure

Relative Humidity Sensor Based on Tilted Fiber Bragg Grating With Polyvinyl Alcohol Coating

2009 ◽  
Vol 21 (7) ◽  
pp. 441-443 ◽  
Author(s):  
Yinping Miao ◽  
Bo Liu ◽  
Hao Zhang ◽  
Yuan Li ◽  
Haibin Zhou ◽  
...  
Keyword(s):  
Relative Humidity ◽  
Polyvinyl Alcohol ◽  
Fiber Bragg Grating ◽  
Humidity Sensor ◽  
Bragg Grating ◽  
Relative Humidity Sensor

scholarly journals Fluorinated Polyimide-Film Based Temperature and Humidity Sensor Utilizing Fiber Bragg Grating

Sensors ◽  
2020 ◽  
Vol 20 (19) ◽  
pp. 5469
Author(s):  
Xiuxiu Xu ◽  
Mingming Luo ◽  
Jianfei Liu ◽  
Nannan Luan
Keyword(s):  
Fiber Bragg Grating ◽  
Humidity Sensor ◽  
Field Tests ◽  
Polyimide Film ◽  
Bragg Grating ◽  
Wavelength Shift ◽  
Sensing Applications ◽  
Fluorinated Polyimide ◽  
Temperature And Humidity ◽  
Fluoride Doping

We propose and demonstrate a temperature and humidity sensor based on a fluorinated polyimide film and fiber Bragg grating. Moisture-induced film expansion or contraction causes an extra strain, which is transferred to the fiber Bragg grating and leads to a humidity-dependent wavelength shift. The hydrophobic fluoride doping in the polyimide film helps to restrain its humidity hysteresis and provides a short moisture breathing time less than 2 min. Additionally, another cascaded fiber Bragg grating is used to exclude its thermal crosstalk, with a temperature accuracy of ±0.5 °C. Experimental monitoring over 9000 min revealed a considerable humidity accuracy better than ±3% relative humidity, due to the sensitized separate film-grating structure. The passive and electromagnetic immune sensor proved itself in field tests and could have sensing applications in the electro-sensitive storage of fuel, explosives, and chemicals.

A fast response intrinsic humidity sensor based on an etched singlemode polymer fiber Bragg grating

2013 ◽  
Vol 203 ◽  
pp. 107-111 ◽  
Author(s):  
Ginu Rajan ◽  
Yusof Mohd Noor ◽  
Bing Liu ◽  
Eliathamby Ambikairaja ◽  
David J. Webb ◽  
...  
Keyword(s):  
Fiber Bragg Grating ◽  
Humidity Sensor ◽  
Fast Response ◽  
Bragg Grating ◽  
Polymer Fiber
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