A Review of Palladium-Based Fiber-Optic Sensors for Molecular Hydrogen Detection

作者：Silva Susana F^*; Coelho Luis; Frazao Orlando; Santos Jose L; Xavier Malcata F

来源：IEEE Sensors Journal, 2012, 12(1): 93-102.

DOI：10.1109/JSEN.2011.2138130

• Fiber grating
• hydrogen detection
• intensity
• interferometry
• optical fiber sensors

Palladium-based fiber-optic sensors have been one of the most promising configurations for hydrogen sensing. In the latest decade, fiber-optic sensors have indeed earned a strong interest owing to their ability to monitor molecular hydrogen at specific spatial points-either as a sensing tip device or in large areas via multiple sensing regions distributed along the optical fiber. %26lt;br%26gt;This review focuses on the various types of optical fiber hydrogen sensors, containing specifically palladium as active element. Three distinct working principles are described, viz. interferometric-, intensity-, and fiber grating-based sensors; their characteristics and sensing performances are critically overviewed.

• 出版日期2012-1