Distributed fiber Bragg grating sensor for multipoint temperature monitoring up to 500°C in high-electromagnetic interference environment

Kumar, Jitendra; Prakash, Om; Agrawal, Sachin; Mahakud, R.; Mokhariwale, Anagha; Dixit, S. K.; Nakhe, S. V.

doi:10.1117/1.oe.55.9.090502

Cited by 15 publications

(9 citation statements)

References 17 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In general, SRMs are the basis of sensing, information encryption and anti‐counterfeiting technology, as well as some novel applications including smart window [3] and drug delivery [4] . As the human footprints spread along with the development of science and technology, nowadays human activities have reached extreme environments such as high electromagnetic interference environment [5] . Since the transmission of electronic signals is difficult in these special conditions, the development of SRMs that exhibit switchable light signals to external stimuli is extremely important.…”

Section: Introductionmentioning

confidence: 99%

Luminescent Organic‐Inorganic Hybrid Metal Halides: An Emerging Class of Stimuli‐Responsive Materials

Wang

Huang

2022

Chemistry A European J

View full text Add to dashboard Cite

Luminescent organic-inorganic metal halides (OIMHs) are well known as a new materials family in recent years. Novel materials and applications of luminescent OIMHs have been explored by changing either the organic component or the metal halide species. Thereinto, the stimuliresponsive (SR) phenomena in OIMHs have drawn much attention recently, for not only their attractive application potential but also the helpfulness in understanding the stability of OIMHs to the external environment. Herein, the luminescent OIMHs that are sensitive to external stimuli including contact, pressure, mechanical grinding, light, heat, and gas molecules, are reviewed, with an emphasis on analyses of the structural change during the SR process. The applications of SR luminescent OIMHs in widespread fields, including gas sensing, information encryption, and rewritable luminescent paper are summarized. Finally, the challenges that deserve to be further explored in this research field are discussed, which provides certain guidance for the future study of SR luminescent OIMHs.

show abstract

Section: Introductionmentioning

confidence: 99%

Luminescent Organic‐Inorganic Hybrid Metal Halides: An Emerging Class of Stimuli‐Responsive Materials

Wang

Huang

2022

Chemistry A European J

View full text Add to dashboard Cite

show abstract

“…The following observations can be drawn from Figure 10: (1) If the three types of coating are of the same thickness, K′′dT < KdT < K′dT. (2) KdT and K′′dT increases with increasing of h1 at the beginning of increasing of h2. Whereas, K′dT reduces slightly with increasing of h1 when h2 >0.18 mm.…”

Section: Appl Sci 2018 8 X For Peer Reviewmentioning

confidence: 97%

“…Optical fiber Bragg grating (FBG) sensing technology has become one of the most attractive sensing technologies in a variety of fields, such as the optical fiber smart structures [1][2][3][4]. FBG offers many advantages, such as wavelength encoded nature, wavelength-division multiplexing, immunity to electric-magnetic interference, and small size, etc.…”

Section: Introductionmentioning

confidence: 99%

Temperature Sensing of Stepped-Metal Coated Optical Fiber Bragg Grating with the Restructured Dual-Peak Resonance

et al. 2019

View full text Add to dashboard Cite

This paper demonstrates a method for the development of stepped-metal coating on optical fiber Bragg grating. The paper also analyzes the dual-peak resonance restructured by the nickel/copper stepped-metal coating. According to the coefficients of linear thermal expansion of the coatings, the modeling and experimental analysis is categorized into three types: Type A, Type B, and Type C. We denote the temperature sensitivity difference between the two peaks as ΔKT for Type A, ΔK′T for Type B, and ΔK″T for Type C. The experimental results show that ΔKT, ΔK′T, and ΔK″T are 2.1 pm/°C, 6.5 pm/°C, and 0.8 pm/°C, respectively. The model analysis and the experimental results all show the Type B stepped-metal coating causes the most obvious temperature sensitivity difference between the two resonance peaks. The stepped-metal coating on the same one Bragg grating can restructure the single resonance into dual-peak resonance with different temperature sensing, and Type B can be used to develop a dual-parameter optical fiber Bragg grating sensor at one location which can measure two physical parameters simultaneously.

show abstract

“…These arrays are complex and costly to implement, and the physical dimensions of these sensors prevent obtaining a complete thermal map of the windings. Additionally, electric sensors are sensitive to electromagnetic interference (EMI), making them unreliable for use in EMs [4]. Therefore, new sensing means that can be embedded within the coils with immunity to EMI are needed for achieving accurate and comprehensive thermal mapping of EM windings.…”

Section: Introductionmentioning

confidence: 99%

“…A feasible alternative to the traditional sensors is the multi-grating FBG sensor system [4], [5]. These dielectric FBG sensors have intrinsic advantages with regards to EM thermal monitoring, including immunity to EMI and small dimensions (125μm diameter of optical fibre generally) [6].…”

Section: Introductionmentioning

confidence: 99%

Polyimide-Coated Fibre Bragg Grating (FBG) Sensors for Thermal Mapping of Electric Machine Windings

Shang

Galea²,

Brusic

et al. 2020

2020 22nd International Conference on Transparent Optical Networks (ICTON)

View full text Add to dashboard Cite

This paper presents a design concept and a prototype of a polyimide-coated Fibre Bragg Grating (FBG) thermal sensor system based on a fast scan tunable laser source (up to 1kHz sensing frequency). This system was deployed to perform a comprehensive 2-D real-time radial and axial thermal profiling of an electromagnetic coilthe short duty cycle electric machine (EM) windings. The thermal measurements were performed using an equivalent prototype consisting of an FBG interrogator, a multi-FBG string temperature sensor, power resistors (thermal objects), and conventional thermocouples used for measurement comparison. The FBG measurements of copper windings were subsequently carried out using a copper coil with FBG sensors system to map the radial and axial temperature distribution of the coil. The experimental results show that Polyimide-coated FBG sensor can be used for multi-point temperature monitoring of electromagnetic coils with a sensing temperature range of 20-200℃, a spatial resolution of 6cm, and a measurement error of  2%. The obtained thermal maps can be used for the identification of hot spot locations in electromagnetic coil systems. I.

show abstract

Distributed fiber Bragg grating sensor for multipoint temperature monitoring up to 500°C in high-electromagnetic interference environment

Cited by 15 publications

References 17 publications

Luminescent Organic‐Inorganic Hybrid Metal Halides: An Emerging Class of Stimuli‐Responsive Materials

Luminescent Organic‐Inorganic Hybrid Metal Halides: An Emerging Class of Stimuli‐Responsive Materials

Temperature Sensing of Stepped-Metal Coated Optical Fiber Bragg Grating with the Restructured Dual-Peak Resonance

Polyimide-Coated Fibre Bragg Grating (FBG) Sensors for Thermal Mapping of Electric Machine Windings

Contact Info

Product

Resources

About