Review of luminescent based fibre optic temperature sensors

McSherry, M.; Fitzpatrick, Colin; Lewis, Elfed

doi:10.1108/02602280510577852

Cited by 30 publications

(19 citation statements)

References 27 publications

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“…System is not able to indicate the corrosion and user will not be able to predict possible place of leak. These disadvantages also are true for optical fiber thermometry [2], [3].…”

Section: A Optic Sensingmentioning

confidence: 95%

Non-invasive application for domestic pipeline monitoring and corrosion detection

Chamran

Shafie

2013

2013 IEEE International Conference on Smart Instrumentation, Measurement and Applications (ICSIMA)

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In this paper a method of assessment and control of condition for domestic pipelines is proposed and been tested for a pair. Most of the previous works has been designed for long range pipes as they may carry valuable liquids. But having a system to monitor domestic's pipes also can help to save so much time and energy in future as leaking itself can be destructive in structures. This system is applying much lower frequency (40 kHz) in compare to other similar systems (above hundreds megahertz) which leads to lower power consumption. This ultrasonic wave is applied to short distance pipes to observe the changes and detect the leakage base on adjusted thresholds amplitude. It is able to detect smallest changes as the matter of difference in acoustic waves for healthy and damaged pipes. The alarming system works by analyzing output signals from receivers. Ultrasonic sensors are having 40 kHz central frequency for both transmitter and receiver with best responsibility at face to face condition. Acoustic sensors are working independently in pair and by dismissing one pair others will not affect continuity of data acquisition. For this paper a couple of transducer (a transmitter and receiver) operation has been investigated. By understanding the functionality of a pair can analyses how they are working in more numbers. This system is a cheap, easy to assemble, install and maintain for homes and most of public facilities such as schools, hospitals, parks, offices and business buildings. It doesn't need any particular constriction or changes in pipeline structures.

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“…System is not able to indicate the corrosion and user will not be able to predict possible place of leak. These disadvantages also are true for optical fiber thermometry [2], [3].…”

Section: A Optic Sensingmentioning

confidence: 95%

Non-invasive application for domestic pipeline monitoring and corrosion detection

Chamran

Shafie

2013

2013 IEEE International Conference on Smart Instrumentation, Measurement and Applications (ICSIMA)

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“…In this study, we propose to develop LHOE-PVDF nanocomposites with distinct morphologies of fibers and films, to analyze and compare their luminescence properties. Luminescent nanocomposite fibers are expected to be more suitable for optical thermometry and optical sensor applications because they exhibit negligible interference from electromagnetic noises and are capable for localized measurements [31,32]. 1D micro-fibers have recently gained lots of interest among the scientific community owing to their superior properties and applications in gas sensing, optoelectronics, photonics, optical pressure sensing, etc.…”

Section: Introductionmentioning

confidence: 99%

“…1D micro-fibers have recently gained lots of interest among the scientific community owing to their superior properties and applications in gas sensing, optoelectronics, photonics, optical pressure sensing, etc. [8,31,32]. Antoniadau et al have designed up-converting nanocomposite fibers which are expected to have improved imaging applications [33].…”

Section: Introductionmentioning

confidence: 99%

Luminescent PVDF nanocomposite films and fibers encapsulated with La2Hf2O7:Eu3+ nanoparticles

et al. 2020

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Luminescent films and fibers are in high demand in display devices and optoelectronics owing to their higher flexibility and mechanical strength compared to powder samples. Keeping that in mind, we have encapsulated La 2 Hf 2 O 7 :Eu 3+ (LHOE) nanoparticles (NPs) synthesized by a molten salt method into polyvinylidene fluoride (PVDF) films and fibers. The LHOE-PVDF nanocomposite fibers were manufactured using a Forcespinning® technology while the counterpart films were fabricated by a drop-casting technique. Their photophysical properties were analyzed and compared. Specifically, the red emission with optimum lifetime, color coordinates, and branching ratio of the LHOE NPs can be reproduced even when incorporated inside the PVDF films and fibers. Our studies demonstrate that the LHOE-PVDF films have better emission output, excited-state lifetime, quantum yield, and color purity than the fibers. This is attributed to lower defect density and better surface texture of the LHOE-PVDF films compared to the fibers. Based on the Judd-Ofelt analysis, we have also elucidated that the Eu-O bond is more polarizable and has a higher degree of covalency in the LHOE-PVDF films compared to that in the fibers. The trend of the Judd-Ofelt parameters suggested that Eu 3+ has a more asymmetric environment in the films compared to the fibers which impart higher red color purity to the former.

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“…Nonetheless, for a short-lived dye like Rhodamine B, the lifetime changes in the nanosecond range would require expensive, highly sophisticated instrumentation. Thus, the long lived dye complexes of ruthenium and europium are more amenable for the development of low-cost sensors using simpler, low-cost optoelectronics [13]. …”

Section: Introductionmentioning

confidence: 99%

Dual optical sensor for oxygen and temperature based on the combination of time domain and frequency domain techniques

Lam

Rao

Loureiro

et al. 2011

Talanta

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In measuring specific conditions in the real world, there are many situations where both the oxygen concentration and the temperature have to be determined simultaneously. Here we describe a dual optical sensor for oxygen and temperature that can be adapted for different applications. The measurement principle of this sensor is based on the luminescence decay times of the oxygen-sensitive ruthenium complex tris-4,7-diphenyl-1,10-phenanthroline ruthenium(III) [Rudpp] and the temperature-sensitive europium complex tris(dibenzoylmethane) mono(5-amino-1,10-phenanthroline)europium(III) [Eudatp]. The excitation and emission spectra of the two luminophores overlap significantly and cannot be discriminated in the conventional way using band pass filters or other optical components. However, by applying both the frequency and time domain techniques, we can separate the signals from the individual decay time of the complexes. The europium complex is entrapped in a poly-(methyl methacrylate) (PMMA) layer and the ruthenium complex is physically adsorbed on silica gel and incorporated in a silicone layer. The two layers are attached to each other by a double sided silicone based tape. The europium sensing film was found to be temperature-sensitive between 10 and 70ºC and the ruthenium oxygen-sensitive layer can reliably measure between 0 and 21% oxygen.

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Review of luminescent based fibre optic temperature sensors

Cited by 30 publications

References 27 publications

Non-invasive application for domestic pipeline monitoring and corrosion detection

Non-invasive application for domestic pipeline monitoring and corrosion detection

Luminescent PVDF nanocomposite films and fibers encapsulated with La2Hf2O7:Eu3+ nanoparticles

Dual optical sensor for oxygen and temperature based on the combination of time domain and frequency domain techniques

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