Hydrogen leak detection using an optical fibre sensor for aerospace applications

Bevenot, X.; Trouillet, Alain; Veillas, Colette; Gagnaire, H.; Clément, Michel

doi:10.1016/s0925-4005(00)00407-x

Cited by 213 publications

(120 citation statements)

References 18 publications

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“…Furthermore, significantly valuable characteristics such as explosion proof and immunity to electromagnetic noise are noteworthy for practical applications. Many types of optical fiber hydrogen sensors have been proposed, including evanescent wave absorption devices [9,10], micromirror optode [11,12], Mach-Zehnder interferometers [13], surface plasmon resonance (SPR) devices [14], and fiber Bragg gratings (FBG) [15][16][17]. Among them, the fiber-optic sensor based on evanescent wave absorption is able to detect the leakage point by time-domain reflectometry using light pulse technique [18].…”

Section: Introductionmentioning

confidence: 99%

A Robust Fiber Bragg Grating Hydrogen Gas Sensor Using Platinum-Supported Silica Catalyst Film

et al. 2018

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A robust fiber Bragg grating (FBG) hydrogen gas sensor for reliable multipoint-leakage monitoring has been developed. The sensing mechanism is based on shifts of center wavelength of the reflection spectra due to temperature change caused by catalytic combustion heat. The sensitive film which consists of platinum-supported silica (Pt/SiO 2 ) catalyst film was obtained using sol-gel method. The precursor solution was composed of hexachloroplatinic acid and commercially available silica precursor solution. The atom ratio of Si : Pt was fixed at 13 : 1. A small amount of this solution was dropped on the substrate and dried at room temperature. After that, the film was calcined at 500°C in air. These procedures were repeated and therefore thick hydrogen-sensitive films were obtained. The catalytic film obtained by 20-time coating on quartz glass substrate showed a temperature change 75 K upon exposure to 3 vol.% H 2 . For realizing robust sensor device, this catalytic film was deposited and FBG portion was directly fixed on titanium substrate. The sensor device showed good performances enough to detect hydrogen gas in the concentration range below lower explosion limit at room temperature. The enhancement of the sensitivity was attributed to not only catalytic combustion heat but also related thermal strain.

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Section: Introductionmentioning

confidence: 99%

A Robust Fiber Bragg Grating Hydrogen Gas Sensor Using Platinum-Supported Silica Catalyst Film

et al. 2018

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“…Various gas sensors including optical, electrochemical, surface acoustic wave, and semiconductor metal oxide sensors have been extensively studied to fulfill the needs of the IoT [9]. In particular, owing to their simplicity in operation, low cost, flexibility in production, small size, and easy integration with electronic circuits, semiconductor gas sensors based on metal oxides are very promising as sensing elements for IoT [10][11][12].…”

Section: Introductionmentioning

confidence: 99%

Design of Metal Oxide Hollow Structures Using Soft-templating Method for High-Performance Gas Sensors

Shim¹,

Jang²

2016

Journal of Sensor Science and Technology

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Semiconductor gas sensors based on metal oxide are widely used in a number of applications, from health and safety to energy efficiency and emission control. Nanomaterials including nanowires, nanorods, and nanoparticles have dominated the research focus in this field owing to their large number of surface sites that facilitate surface reactions. Recently, metal oxide hollow structures using soft templates have been developed owing to their high sensing properties with large-area uniformity. Here, we provide a brief overview of metal oxide hollow structures and their gas-sensing properties from the aspects of template size, morphology, and additives. In addition, a gassensing mechanism and perspectives are presented.

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“…Hydrogen has numerous applications in industry, such as chemical production, fuel cell technology, and rocket engines [1] . However, the flammable and explosive properties of hydrogen gas make its detection an important issue [2] .…”

Section: Introductionmentioning

confidence: 99%

Hydrogen Gas Sensing Properties of AgNPs-Doped Titania Nanotubes by Electroless Deposition

2016

IJSR

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Titania nanotubes thin films have been prepared by electrochemical anodization of Ti foil at room temperature (~25ºC), in ethylene glycol base electrolyte with 0.5wt. % NH 4 F and 4wt% deionized water at 30V at time 3hr and then AgNPs-doped TiO 2 nanotube arrays at different deposition ratios (0.3, 0.5, 0.7, 0.9 wt%) were carried out by electroless deposition. These tubes are well aligned and organized into high-density uniform arrays. The average tube diameter, ranging in size from 61 to 74 nm, the length of the tube 2.13 µ, and ranging in size of wall thickness from 21 to 29 nm. A possible growth mechanism is presented. The TiO 2 nanotubes were characterized by X-ray diffraction (XRD), scanning electron microscope (FESEM) and energy dispersive X-ray spectroscopy (EDX(. Gas sensors based on AgNPs/TiO 2 nanotube arrays thin films were fabricated, and their sensing properties were investigated. The AgNPs/TiO 2 nanotube sensor demonstrated a good sensitivity at different concentration hydrogen atmospheres ranging from (15, 30, 45, 60, 75ppm) H 2 . A temperature-dependent sensing from 25°C to 300°C was also found with an applied voltage was constant at 6V.

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Hydrogen leak detection using an optical fibre sensor for aerospace applications

Cited by 213 publications

References 18 publications

A Robust Fiber Bragg Grating Hydrogen Gas Sensor Using Platinum-Supported Silica Catalyst Film

A Robust Fiber Bragg Grating Hydrogen Gas Sensor Using Platinum-Supported Silica Catalyst Film

Design of Metal Oxide Hollow Structures Using Soft-templating Method for High-Performance Gas Sensors

Hydrogen Gas Sensing Properties of AgNPs-Doped Titania Nanotubes by Electroless Deposition

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