Optical fiber Bragg grating hydrogen sensor based on evanescent-field interaction with palladium thin-film transducer

Schroeder, Kerstin; Ecke, Wolfgang; Willsch, Reinhardt

doi:10.1016/j.optlaseng.2009.04.002

Cited by 71 publications

(38 citation statements)

References 21 publications

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“…In comparison with current wavelength fiber sensors (generally based on gratings [3,[5][6][7][8]), the response obtained is one order faster. The sensor proposed also shows a better reproducibility.…”

Section: Hydrogen Response and Discussionmentioning

confidence: 85%

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A reliable, sensitive and fast optical fiber hydrogen sensor based on surface plasmon resonance

Perrotton¹,

Westerwaal²,

Javahiraly³

et al. 2013

Opt. Express

126

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Abstract:We report for the first time on the experimental response of a Surface Plasmon Resonance fiber optic sensor based on wavelength modulation for hydrogen sensing. This approach of measuring the hydrogen concentration makes the sensor insensitive to intensity fluctuations. The intrinsic fiber sensor developed provides remote sensing and enables the possibility of multi-points sensing. The sensor consists of a multilayer of 35 nm Au / 180 nm SiO 2 / Pd deposited on a step-index multimode fiber core. The sensitivity and selectivity of the sensor are optimal at a Pd thickness of 3.75 nm. The sensor is sensitive to a hydrogen concentration ranging between 0.5 and 4% H 2 in Ar, with a response time less than 15 s.

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Section: Hydrogen Response and Discussionmentioning

confidence: 85%

“…Nevertheless, the response time increases to more than 30 s, for optical fiber sensors based on wavelength modulation. This is due to the use of a thick (more than 30 nm) sensing material layer [3][4][5][6][7][8].…”

Section: Introductionmentioning

confidence: 99%

A reliable, sensitive and fast optical fiber hydrogen sensor based on surface plasmon resonance

Perrotton¹,

Westerwaal²,

Javahiraly³

et al. 2013

Opt. Express

126

View full text Add to dashboard Cite

show abstract

“…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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“…It has been shown that by removing the glass cladding around an FBG, it becomes sensitive to the surrounding refractive index (Iadicicco et al 2004;Schroeder et al 2009;Meltz et al 1996). These types of sensors, known as evanescent field sensors are sensitive along the length of the FBG, which make them ideal for multiplexed implementation into fuel cell plates.…”

Section: Introductionmentioning

confidence: 99%

Fiber Bragg grating sensor for two-phase flow in microchannels

David

Djilali

Wild

2012

Microfluid Nanofluid

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A new non-intrusive measurement technique for two-phase flow in microchannels is presented. The development of an evanescent field-based optical fiber Bragg grating (FBG) sensor is described, and experiments coupled with flow visualization demonstrating the performance of this sensor are presented. Two adjacent 1-mm FBGs in etched D-shaped fiber are embedded into the surface of a PDMS microchannel. Experiments are conducted in both droplet and slug flow regimes and highspeed digital video is captured synchronously with the sensor data. The FBGs exhibit an on-off type response to the passage droplets which is shown to correlate precisely with the passage of the liquid phase. This correlation enables the measurement of droplet average velocity and size using only the sensor data. In addition to the use of both FBG signals for the purpose of measuring droplet speed and size, it is shown that for droplets larger than the FBG length, a single FBG can be used to estimate the convection velocity and size of fast moving droplets. This sensing method is potentially useful for monitoring twophase flow in fuel cells and microfluidic applications such as micro-heat exchangers and lab-on-a-chip systems.

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Optical fiber Bragg grating hydrogen sensor based on evanescent-field interaction with palladium thin-film transducer

Cited by 71 publications

References 21 publications

A reliable, sensitive and fast optical fiber hydrogen sensor based on surface plasmon resonance

A reliable, sensitive and fast optical fiber hydrogen sensor based on surface plasmon resonance

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

Fiber Bragg grating sensor for two-phase flow in microchannels

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