Laser & Optoelectronics Progress, Volume. 60, Issue 23, 2306007(2023)
Optical Fiber Hydrogen Sensor Based on Pd-Coated Microcantilever
In order to quickly detect hydrogen leaks, there is an urgent need to develop a safer and lower concentration detection lower limit hydrogen sensor. This article assembles a micro cantilever beam probe coated with palladium film with a single-mode fiber end face, and designs an easy to prepare and low-cost fiber optic hydrogen sensor. The experimental results show that the sensor has an ultra-high hydrogen response sensitivity of about -9.887 μm/%, while also having an ultra-low detection lower limit as low as 1.76×10-3% and excellent repeatability. Under the conditions of trace hydrogen volume fraction, the sensor exhibits excellent linear response to hydrogen volume fraction, which is of great significance for trace gas detection and has important application value in hydrogen energy batteries, nuclear power plants, and space exploration.
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Lichao Zhang, Jiabin Huang, Lei Xu, Yiping Wang, Changrui Liao. Optical Fiber Hydrogen Sensor Based on Pd-Coated Microcantilever[J]. Laser & Optoelectronics Progress, 2023, 60(23): 2306007
Category: Fiber Optics and Optical Communications
Received: Oct. 7, 2023
Accepted: Nov. 27, 2023
Published Online: Dec. 27, 2023
The Author Email: Liao Changrui (cliao@szu.edu.cn)