U-shaped plastic optical fiber functionalized with metal oxides thin film for H&lt;inf&gt;2&lt;/inf&gt;S gas sensor applications

Keley, Meysam; Borghi, Fabricio Frizera; Dante, Alex; Carvalho, Cesar Cosenza; Allil, Regina C.; Dutra, Fabio da Silva; Cardoso, Pedro; Mok, Roberto Wu; Garcao, Leandro; Werneck, Marcelo Martins; Mello, Alexandre

doi:10.1109/i2mtc.2018.8409671

Cited by 3 publications

(1 citation statement)

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“…Because dissolved CO 2 can reduce the solution pH, CO 2 sensors also employ pH indicators (colorimetric or fluorescent dyes) within various sensing layers such as silica gel coating, polymer matrix with quantum dots, and sol–gel matrix with silica nanoparticles [172,173,174,175,176,177]. H 2 S monitoring often utilizes reactive sensing materials such as Ag [178,179], Cu [180,181], ZnO [182,183], CuO doped SnO 2 [184], CdO [185], and fluorescent or luminescent indicators [186,187,188]. More H 2 S sensitive materials can be found in References [189,190].…”

Section: Emerging Corrosion Sensing Technologiesmentioning

confidence: 99%

Corrosion Sensors for Structural Health Monitoring of Oil and Natural Gas Infrastructure: A Review

Wright

Lü

Devkota

et al. 2019

Sensors

105

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Corrosion has been a great concern in the oil and natural gas industry costing billions of dollars annually in the U.S. The ability to monitor corrosion online before structural integrity is compromised can have a significant impact on preventing catastrophic events resulting from corrosion. This article critically reviews conventional corrosion sensors and emerging sensor technologies in terms of sensing principles, sensor designs, advantages, and limitations. Conventional corrosion sensors encompass corrosion coupons, electrical resistance probes, electrochemical sensors, ultrasonic testing sensors, magnetic flux leakage sensors, electromagnetic sensors, and in-line inspection tools. Emerging sensor technologies highlight optical fiber sensors (point, quasi-distributed, distributed) and passive wireless sensors such as passive radio-frequency identification sensors and surface acoustic wave sensors. Emerging sensors show great potential in continuous real-time in-situ monitoring of oil and natural gas infrastructure. Distributed chemical sensing is emphasized based on recent studies as a promising method to detect early corrosion onset and monitor corrosive environments for corrosion mitigation management. Additionally, challenges are discussed including durability and stability in extreme and harsh conditions such as high temperature high pressure in subsurface wellbores.

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