Fiber Bragg distributed chemical sensor

Boersma,; Saalmink,; Lucassen,; Wiegersma,; Jansen,; Cheng, Wood-Hi

doi:10.1109/icsens.2011.6126995

Cited by 5 publications

(6 citation statements)

References 3 publications

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“…The accuracy of the results is also prone to external factors such as coating sensitivity, methods of processing the coating to the FBG, and the approach used to optimize the chemical selectivity of the polymeric coatings. For that reason, the selective measurement of a particular chemical compound will require the operator to tune the polymer coating on the FBG to suit the analytes [103].…”

Section: Distributed Chemical Sensing (Dcs)mentioning

confidence: 99%

Optical Fibre-Based Sensors for Oil and Gas Applications

Johny

Amos

Prabhu

2021

Sensors

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Oil and gas (O&G) explorations moving into deeper zones for enhanced oil and gas recovery are causing serious safety concerns across the world. The sensing of critical multiple parameters like high pressure, high temperature (HPHT), chemicals, etc., are required at longer distances in real-time. Traditional electrical sensors operate less effectively under these extreme environmental conditions and are susceptible to electromagnetic interference (EMI). Hence, there is a growing demand for improved sensors with enhanced measurement capabilities and also sensors that generates reliable data for enhanced oil and gas production. In addition to enhanced oil and gas recovery, the sensing technology should also be capable of monitoring the well bore integrity and safety. The sensing requirements of the O&G industry for improved sensing in deeper zones include increased transmission length, improved spatial coverage and integration of multiple sensors with multimodal sensing capability. This imposes problems like signal attenuation, crosstalks and cross sensitivities. Optical fibre-based sensors are expected to provide superior sensing capabilities compared to electrical sensors. This review paper covers a detailed review of different fibre-optic sensing technologies to identify a feasible sensing solution for the O&G industry.

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Section: Distributed Chemical Sensing (Dcs)mentioning

confidence: 99%

Optical Fibre-Based Sensors for Oil and Gas Applications

Johny

Amos

Prabhu

2021

Sensors

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“…The materials that were used in the manufacturing of the coating formulations were: Polytetrafluoroethylene (PTFE) AF1600 (PTFE AF, Merck), Polymer of Intrinsic Microporosity (PIM-1, in house synthesis according to ref [22]), Zeolites H-ZSM5_26, Na-ZSM5_38, NH4CZP200 and NH4CZP800. (ACS Materials, and in-house synthesis according to ref [23]), Metal Organic Framework (MOF) ZIF 8 (in house synthesis according to ref [24]), and a fluorinated polyimide (PIFB, made according to ref [25] and [26]).…”

Section: Gas Absorbing Coatingsmentioning

confidence: 99%

A Versatile Capacitive Sensing Platform for the Assessment of the Composition in Gas Mixtures

Sweelssen¹,

Blokland²,

Rajamäki

et al. 2020

Micromachines

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The energy market is facing a major transition, in which natural gas and renewable gasses will play an important role. However, changing gas sources and compositions will force the gas transporters, gas engine manufacturers, and gas grid operators to monitor the gas quality in a more intensive way. This leads to the need for lower cost, smaller, and easy to install gas quality sensors. A new approach is proposed in this study that is based on the chemical interactions of the various gas components and responsive layers applied to an array of capacitive interdigitated electrodes. For Liquid Natural Gas (LNG), containing a relative high concentration of higher hydrocarbons, an array of ten capacitive chips is proposed, that is sufficient to calculate the full composition, and can be used to calculate energy parameters, such as Wobbe Index, Calorific Value, and Methane Number. A first prototype was realized that was small enough to be inserted in low and medium pressure gas pipes and LNG engine fuel lines. Adding the pressure and temperature data to the chip readings enables the determination of the concentrations of the various alkanes, hydrogen, nitrogen, and carbon dioxide, including small fluctuations in water vapor pressure. The sensitivity and selectivity of the new sensor is compared to a compact analyzer employing tunable filter infrared spectrometry.

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“…The coating of the optical fiber can be a specific material that allows for specific chemical sensing [ 14 , 15 , 16 ]. While this approach has been mostly used for point sensors [ 17 ], where several possible coatings for chemical sensing have been investigated [ 17 , 18 , 19 ], we have shown that the approach can be directly applied to distributed sensing approaches [ 16 ].…”

Section: Introductionmentioning

confidence: 99%

Fabrication of Optical Fibers with Multiple Coatings for Swelling-Based Chemical Sensing

et al. 2021

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We discuss distributed chemical sensing based on the swelling of coatings of optical fibers. Volume changes in the coating induce strain in the fiber’s glass core, provoking a local change in the refractive index which is detectable by distributed fiber optical sensing techniques. We describe methods to realize different coatings on a single fiber. Simultaneous detection of swelling processes all along the fiber opens the possibility to interrogate thousands of differently functionalized sections on a single fiber. Principal component analysis is used to enable sensors for environmental monitoring, food analysis, agriculture, water quality monitoring, or medical diagnostics.

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Fiber Bragg distributed chemical sensor

Cited by 5 publications

References 3 publications

Optical Fibre-Based Sensors for Oil and Gas Applications

Optical Fibre-Based Sensors for Oil and Gas Applications

A Versatile Capacitive Sensing Platform for the Assessment of the Composition in Gas Mixtures

Fabrication of Optical Fibers with Multiple Coatings for Swelling-Based Chemical Sensing

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