Study on Optical Fiber Bragg Grating Temperature Sensors for Human Body Temperature Monitoring

Yu, Qingxu; Zhang, Yongjun; Dong, Yi; Li, Yuan Ping; Chen, Huacai

doi:10.1109/sopo.2012.6271111

Cited by 26 publications

(12 citation statements)

References 5 publications

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“…The grating is intrinsically a strain and temperature sensor and the external physical parameters are detected through the measurement of the reflected wavelength. For our purposes, the FBGs were employed in a strain-free configuration in order to consider the temperature contribution only, which is linearly related to the Bragg wavelength shift with the following expression: ∆λ B /λ B = S T ∆T, where S T is the thermal sensitivity coefficient of the grating [26].…”

Section: Methodsmentioning

confidence: 99%

Multidimensional thermal mapping during radiofrequency ablation treatments with minimally invasive fiber optic sensors

Palumbo

Vita

Schena

et al. 2018

Biomed. Opt. Express

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Temperature mapping is a key asset in supporting the clinician during thermal ablation (TA) treatment of tumors without adding additional risk to the TA procedure. Herein we report our experiments on multidimensional thermal mapping during radio frequency (RF) thermal ablation treatments of an ex-vivo animal organ. The temperature was monitored using several arrays of fiber Bragg gratings properly positioned around the RF applicator. The results show the effectiveness of our proposed method at assessing the TA probe depth and demonstrating how the insertion depth directly influences the maximum temperature and the treated area of the radio frequency ablation.

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Section: Methodsmentioning

confidence: 99%

Multidimensional thermal mapping during radiofrequency ablation treatments with minimally invasive fiber optic sensors

Palumbo

Vita

Schena

et al. 2018

Biomed. Opt. Express

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“…However now, this fiber optic sensor can be added to the business esteem. One working rule of fiber optic sensor that is utilized as a part of this venture is utilization of FBG sensors to gauge physical changes, for example, strain, temperature and pressure [2]. This sensor has phenomenal application esteem, particularly in the territory of disseminated implanted detecting in materials for utilizing on smart structures, for example bridges, aircrafts, pipelines and dams.…”

Section: Introductionmentioning

confidence: 99%

An Effective Temperature Monitoring Scheme Using ANN-Based Fiber Bragg Grating Sensor

Mathew¹,

Valooran²,

Kumar³

2017

IJIES

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Abstract:In this paper, a fiber Bragg grating (FBG) based temperature sensor is designed and implemented using a conventional laser source. It is observed that the sensitivity of FBG temperature sensor is low and not effective in sensing temperature of critical applications. Hence, FBG temperature sensitization encapsulation technique is introduced to increase the sensitivity of the sensor. The sensitivity is improved by a factor of 44 with temperature sensitization encapsulation technique, but the linearity error is ±15% full scale reading. In order to retain the high sensitivity without compromising the linearity of the system, multilayer perceptron (MLP) artificial neural network (ANN) is introduced to estimate and reduce the linearity error of FBG sensor. The Levenberg-Marquardt (LM) algorithm is used for training and learning mechanism of MLP-ANN. A linearity error of approximately ±2.8% is achieved without affecting the sensitivity of the system.

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“…[20][21][22] FBGs have also been used as temperature sensors, 23 as well as in vibration measurement during treatment of atrial fibrillation. [24][25][26] Moreover, FBG technology has been used in experiments for thermal measurements during RF and/or laser ablation therapy. 8,27,28 Tosi et al 29 conducted experiments on thermal monitoring during RFA of liver tumors using an array of five draw-tower FBGs fabricated on an ormoceramic bend-insentive fiber as well as on a distributed FOS using chirped FBGs.…”

Section: Introductionmentioning

confidence: 99%

Temperature profile of ex-vivo organs during radio frequency thermal ablation by fiber Bragg gratings

et al. 2016

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, "Temperature profile of ex-vivo organs during radio frequency thermal ablation by fiber Bragg gratings," J. Biomed. Opt. 21 (11) Abstract. We report on the integration of fiber optic sensors with commercial medical instrumentation for temperature monitoring during radio frequency ablation for tumor treatment. A suitable configuration with five fiber Bragg grating sensors bonded to a bipolar radio frequency (RF) probe has been developed to monitor the area under treatment. A series of experiments were conducted on ex-vivo animal kidney and liver and the results confirm that we were able to make a multipoint measurement and to develop a real-time temperature profile of the area, with a temperature resolution of 0.1°C and a spatial resolution of 5 mm during a series of different and consecutive RF discharges. © The Authors. Published by SPIE under a Creative Commons Attribution 3.0 Unported License. Distribution or reproduction of this work in whole or in part requires full attribution of the original publication, including its DOI.

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Study on Optical Fiber Bragg Grating Temperature Sensors for Human Body Temperature Monitoring

Cited by 26 publications

References 5 publications

Multidimensional thermal mapping during radiofrequency ablation treatments with minimally invasive fiber optic sensors

Multidimensional thermal mapping during radiofrequency ablation treatments with minimally invasive fiber optic sensors

An Effective Temperature Monitoring Scheme Using ANN-Based Fiber Bragg Grating Sensor

Temperature profile of ex-vivo organs during radio frequency thermal ablation by fiber Bragg gratings

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