High-sensitivity balloon-like thermometric sensor based on bent single-mode fiber

Al-Janabi, Dunia I; Salman, Ansam M.; Al‐Janabi, Abdulhadi

doi:10.1088/1361-6501/ab9458

Cited by 34 publications

(9 citation statements)

References 30 publications

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“…Despite the absence of additional coating on the sensor head, the performances in terms of sensitivity and linearity are competitive with respect to others. This results from the utilization of the balloon-like fiber optics sensor where it introduces bending effect which enhances the exposure of evanescent waves for the interaction with ammonia in water [29,30]. In other words, this sensor has the edge of design simplicity resulting from the avoidance of the additional coating.…”

Section: Resultsmentioning

confidence: 99%

Ammonia detection in water with balloon-like plastic optical fiber sensor

et al. 2023

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This work presents the demonstration of a plastic optical fiber (POF)-based ammonia sensor. The sensor head is formed by bending an unclad fiber optic sensor into a balloon-like structure. The bending radius of the balloon-like bent fiber optic sensor is varied from 1.0 to 2.5 cm. The performance of each sensor is tested using ammonia solution with concentration ranging from 0 to 15 mg/L. Results show that the optimized performances of the proposed sensor occur when the bending radius is fixed at 1.5 cm. At this bending radius, the sensor illustrates the sensitivity of - 0.0024 (mg/L)-1 with linearity of 0.97 and resolution of - 4.17 mg/L. For comparison, the bent sensor is compared to the straight sensor and performances of the former is found to be more superior. In addition, the balloon-like bent sensor is further tested with real water samples. The sensor sensitivity is found to be - 0.0022 (mg/L)-1 with linearity of 0.95 and resolution of - 4.54 mg/L. The result shows that the sensor has comparable performance in the ammonia detection for both pure ammonia and real water samples. In essence, this balloon-like bent sensor functions without additional coating on the sensor head, making it favorable in terms of the simplicity of the design.

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Section: Resultsmentioning

confidence: 99%

Ammonia detection in water with balloon-like plastic optical fiber sensor

et al. 2023

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“…The modal interference pattern shifts when displacement is applied to the interferometer as a result of measurand variations [75][76][77]. The detection of these shifts combined with proper modeling allows to obtain information about the changes [59,78,79].…”

Section: Diameter Measurement Combined With Additive Manufacturingmentioning

confidence: 99%

A century on diameter measurement techniques in cylindrical structures

Cardoso,

Caldas,

Giraldi

et al. 2024

Meas. Sci. Technol.

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This work addresses the historical development of techniques and methodologies oriented to the measurement of the internal diameter of transparent tubes since the original contributions of Anderson and Barr published in 1923 in the first issue of Measurement Science and Technology. The progresses on this field are summarized and highlighted the emergence and significance of the measurement approches supported by the optical fiber.

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“…The basic operating principle of the balloon-like interferometer is based on the interference between the core mode and the cladding modes. This is due to the curvature of the fiber because a part of the light escapes from the core constraint, and penetrates the cladding when the light propagates in the balloon-shaped interferometer curvature section [ 25 ], respectively, red and yellow lines shown in Figure 1 . A part of their mode power is reflected in the fiber core when the light is coupled to the cladding border.…”

Section: Principle Of Operationmentioning

confidence: 99%

“…Curved optical fiber cross-section sensors based on balloons are capable of scanning wide regions with good measurement reproducibility, ease of use, and compactness [ 23 ]. In recent years, sensors based on the balloon-like interferometer with highly sensitivity have been proposed for different measuring parameters, including micro-displacement [ 21 ], vector magnetometer [ 19 ], refractive index (RI) [ 22 , 24 ], force [ 20 ], temperature [ 23 , 25 ], and humidity [ 26 ].…”

Section: Introductionmentioning

confidence: 99%

Optical Strain Gauge Prototype Based on a High Sensitivity Balloon-like Interferometer and Additive Manufacturing

Cardoso

Caldas

Giraldi

et al. 2022

Sensors

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An optical strain gauge based on a balloon-like interferometer structure formed by a bent standard single-mode fiber combined with a 3D printer piece has been presented and demonstrated, which can be used to measure displacement. The interferometer has a simple and compact size, easy fabrication, low cost, and is repeatable. The sensor is based on the interference between the core and cladding modes. This is caused by the fiber’s curvature because when light propagates through the curved balloon-shaped interferometer region, a portion of it will be released from the core limitation and coupled to the cladding. The balloon has an axial displacement as a result of how the artwork was constructed. The sensor head is sandwiched between two cantilevers such that when there is a displacement, the dimension associated with the micro bend is altered. The sensor response as a function of displacement can be determined using wavelength shift or intensity change interrogation techniques. Therefore, this optical strain gauge is a good option for applications where structure displacement needs to be examined. The sensor presents a sensitivity of 55.014 nm for displacement measurements ranging from 0 to 10 mm and a strain sensitivity of 500.13 pm/μϵ.

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High-sensitivity balloon-like thermometric sensor based on bent single-mode fiber

Cited by 34 publications

References 30 publications

Ammonia detection in water with balloon-like plastic optical fiber sensor

Ammonia detection in water with balloon-like plastic optical fiber sensor

A century on diameter measurement techniques in cylindrical structures

Optical Strain Gauge Prototype Based on a High Sensitivity Balloon-like Interferometer and Additive Manufacturing

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