scholarly journals Special Issue on Fiber-Optics. Fiber-Optic Sensors Free from Environmental Disturvances.

1994 ◽  
Vol 22 (4) ◽  
pp. 245-252
Author(s):  
Satoshi TANAKA
Keyword(s):  
Fiber Optics ◽  
Fiber Optic ◽  
Fiber Optic Sensors ◽  
Special Issue

scholarly journals Fiber Optic Sensing Technologies for Battery Management Systems and Energy Storage Applications

Sensors ◽  
2021 ◽  
Vol 21 (4) ◽  
pp. 1397
Author(s):  
Yang-Duan Su ◽  
Yuliya Preger ◽  
Hannah Burroughs ◽  
Chenhu Sun ◽  
Paul Ohodnicki
Keyword(s):  
Energy Storage ◽  
Fiber Optics ◽  
Fiber Optic ◽  
Gas Sensing ◽  
Fiber Optic Sensors ◽  
Management Systems ◽  
Practical Implementation ◽  
Battery Management ◽  
Battery Management Systems ◽  
Battery Systems

Applications of fiber optic sensors to battery monitoring have been increasing due to the growing need of enhanced battery management systems with accurate state estimations. The goal of this review is to discuss the advancements enabling the practical implementation of battery internal parameter measurements including local temperature, strain, pressure, and refractive index for general operation, as well as the external measurements such as temperature gradients and vent gas sensing for thermal runaway imminent detection. A reasonable matching is discussed between fiber optic sensors of different range capabilities with battery systems of three levels of scales, namely electric vehicle and heavy-duty electric truck battery packs, and grid-scale battery systems. The advantages of fiber optic sensors over electrical sensors are discussed, while electrochemical stability issues of fiber-implanted batteries are critically assessed. This review also includes the estimated sensing system costs for typical fiber optic sensors and identifies the high interrogation cost as one of the limitations in their practical deployment into batteries. Finally, future perspectives are considered in the implementation of fiber optics into high-value battery applications such as grid-scale energy storage fault detection and prediction systems.

Assessment of Concrete Cracking at Nuclear Waste Disposal Facilities via Fiber Optic Sensors

2010 ◽  
Vol 1265 ◽  
Author(s):  
Sanaan Cherie Lair ◽  
John C. Walton ◽  
Arturo Woocay ◽  
Antonio Motta
Keyword(s):  
Fiber Optics ◽  
Waste Disposal ◽  
Fiber Optic ◽  
High Heat ◽  
Fiber Optic Sensors ◽  
Temperature Variations ◽  
Discharge Rates ◽  
Novel Approach ◽  
Temperature Waves ◽  
Concrete Fractures

AbstractFiber optic sensors offer a novel approach to monitoring of fractures in concrete waste disposal vaults and offer the possibility of determining the quantity, width and location of the cracks as they form. Fiber optics can directly detect cracks if they form within the path of a fiber optic as well as monitor secondary indicators of cracking such as temperature changes and strain. When cracks form in concrete waste disposal vaults they can fill with water which has a high heat capacity, this enables cracks to be observed by monitoring temperature variations near the crack. An analytical solution for heat transfer is applied to estimate the propagation of temperature waves around cracks. It is demonstrated that discharge rates through the concrete which are less than 10-5 m3/m-s do not produce a meaningful temperature wave through the concrete. Fractures in the concrete must be larger than 0.07 cm to produce a measurable result and temperature sensors must be located within 0.5 meters of a crack to detect a change in temperature produced by seasonal groundwater flow through a crack. A distributed system of fiber optic sensors may be embedded in the concrete vault and used to monitor crack formation, temperature variations and strain.

scholarly journals Evanescent fiber optic sensors using single mode fiber optics to measure acidity

2020 ◽  
Vol 830 ◽  
pp. 032037
Author(s):  
R D Purnomo ◽  
A B Pantjawati ◽  
L Hasanah ◽  
R E Pawinanto ◽  
G Sugandi ◽  
...  
Keyword(s):  
Fiber Optics ◽  
Fiber Optic ◽  
Single Mode ◽  
Single Mode Fiber ◽  
Fiber Optic Sensors

scholarly journals Special Issue “Fiber Optic Sensors and Applications”: An Overview

Sensors ◽  
2020 ◽  
Vol 20 (12) ◽  
pp. 3400
Author(s):  
Lei Wei ◽  
Swee Chuan Tjin
Keyword(s):  
Fiber Optic ◽  
Fiber Optic Sensors ◽  
Special Issue ◽  
Detection Mechanisms

We present here the recent advance in exploring new detection mechanisms, materials, processes, and applications of fiber optic sensors.

Nursing Movement Monitoring System Utilizing Hetero-core Fiber Optic Sensors Embedded in Medical Thin Films

2018 ◽  
Vol 138 (12) ◽  
pp. 525-532
Author(s):  
Masahiko Ito ◽  
Yuya Koyama ◽  
Michiko Nishiyama ◽  
Emi Yanagisawa ◽  
Mariko Hayashi ◽  
...  
Keyword(s):  
Thin Films ◽  
Monitoring System ◽  
Fiber Optic ◽  
Fiber Optic Sensors ◽  
Core Fiber ◽  
Movement Monitoring

Embedded Fiber Optic Sensors for Integral Armor

2000 ◽  
Author(s):  
Bruce K. Fink ◽  
Kelli Corona-Bittick
Keyword(s):  
Fiber Optic ◽  
Fiber Optic Sensors
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