Results 81 to 90 of about 307,556 (373)

Investigations of Different Ion Intercalations on the Performance of FBG Hydrogen Sensors Based on Pt/MoO₃

Sensors, 2019
α-MoO3 has been used as a hydrogen sensing material due to its excellent properties and unique crystalline layer structure. However, the low repeatability of α-MoO3 based hydrogen sensor restricts its practical application.
Gaopeng Wang, Shiwen Yang, Jixiang Dai, Yutang Dai, Tong Zou, Johannes Roths, Minghong Yang   +6 more
doaj   +1 more source

Brillouin Frequency Shift Extraction Based on AdaBoost Algorithm

Sensors, 2022
The Brillouin Optical Time-Domain Analyzer assisted by the AdaBoost Algorithm for Brillouin frequency shift (BFS) extraction is proposed and experimentally demonstrated.
Huan Zheng, Feng Xiao, Shijie Sun, Yali Qin   +3 more
doaj   +1 more source

Fiber Optic Sensors Based on the Faraday Effect

Italian National Conference on Sensors, 2021
Some 175 years ago Michael Faraday discovered magnetic circular birefringence, now commonly known as the Faraday effect. Sensing the magnetic field through the influence that the field has on light within the fiber optic sensor offers several advantages,
P. Mihailovic, S. Petricevic
semanticscholar   +1 more source

Fiber Optic Sensors for Structural Health Monitoring of Air Platforms [PDF]

, 2011
Aircraft operators are faced with increasing requirements to extend the service life of air platforms beyond their designed life cycles, resulting in heavy maintenance and inspection burdens as well as economic pressure. Structural health monitoring (SHM)
Aldridge, Amano, Bao, Betz, Betz, Betz, Betz, Boller, Chandler, Chen, Chuang, Connolly, Coppola, Culshaw, Culshaw, Fisher, Fornitchov, Gangopadhyay, Gaozhi Xiao, Glisic, Grabovac, Grattan, Guo, Guo, Hill, Honglei Guo, Hongo, Isago, Jianping Yao, Kochergin, Komatsuzaki, Lee, Lee, Lo, Luo, Majumder, Measures, Minardo, Moorey, Mrad, Nakamura, Nezih Mrad, Okamoto, Perez, Philen, Qing, Rapp, Sano, Satori, Sekine, Shao, Soejima, Spirit, Staszewski, Takahashi, Takeda, Todd, Tsuda, Tsuda, Webb, Wierzba, Wild, Wnuk, Xiao, Xiao, Yamashita, Yoshino   +66 more
core   +3 more sources

Signal Processing for Time Domain Wavelengths of Ultra-Weak FBGs Array in Perimeter Security Monitoring Based on Spark Streaming

Sensors, 2018
To detect perimeter intrusion accurately and quickly, a stream computing technology was used to improve real-time data processing in perimeter intrusion detection systems.
Zhenhao Yu, Fang Liu, Yinquan Yuan, Sihan Li, Zhengying Li   +4 more
doaj   +1 more source

Iteration Bayesian Reweighed Algorithm for Optical Carrier-Based Microwave Interferometry Sensing

Sensors, 2020
This paper proposes a novel iteration Bayesian reweighed (IBR) algorithm to obtain accurate estimates of a measurement parameter that uses only a few noisy measurement data.
Yuxiao Li, Ciming Zhou, Dian Fan, Sijing Liang, Li Qian   +4 more
doaj   +1 more source

Dislocation Distribution, Crystallographic Texture Evolution, and Plastic Inhomogeneity of Inconel 718 Fabricated by Laser Powder Bed Fusion

Advanced Engineering Materials, EarlyView.
Spatial distribution of microstructure in Inconel 718 3D‐printed with bidirectional strategy with no rotation and chessboard strategy is studied. The former results in a highly ordered arrangement of coarse grains separated by line clusters of dislocation‐dense fine grains. This arrangement is disrupted by the chessboard strategy.
Jalal Al‐Lami, Thibaut Dessolier, Samuel R. Rogers, Talha Pirzada, Minh‐Son Pham   +4 more
wiley   +1 more source

Phase-Shifted Eccentric Core Fiber Bragg Grating Fabricated by Electric Arc Discharge for Directional Bending Measurement

Sensors, 2018
A phase-shifted eccentric core fiber Bragg grating (PS-ECFBG) fabricated by electric arc discharge (EAD) is presented and demonstrated. It is composed of a fraction of eccentric core fiber fusion spliced in between two pieces of commercial single mode ...
Yang Ouyang, Jianxia Liu, Xiaofeng Xu, Yujia Zhao, Ai Zhou   +4 more
doaj   +1 more source

Advances in Fiber Optic Sensors Technology Development for Temperature and Strain Measurements in Superconducting Magnets and Devices

IEEE transactions on applied superconductivity, 2016
The luminosity upgrade of the Large Hadron Collider (HL-LHC) requires the development of a new generation of superconducting magnets based on Nb3Sn technology.
A. Chiuchiolo, H. Bajas, M. Bajko, L. Bottura, M. Consales, A. Cusano, M. Giordano, J. Perez   +7 more
semanticscholar   +1 more source

Mechanisms of Increasing Weld Depth during Temporal Power Modulation in High‐Power Laser Beam Welding

Advanced Engineering Materials, EarlyView.
Temporal power modulation increases weld depth in high‐power laser beam welding of dissimilar round bars by nearly 20% compared to same average continuously welded welding power. The mechanism of action also applies to sheet welding and depends on the inertia of keyhole depth for the modulated laser beam power.
Jan Grajczak, David Reynders, Christian Nowroth, Jens Twiefel, Jörg Wallaschek, Sarah Nothdurft, Jörg Hermsdorf, Stefan Kaierle   +7 more
wiley   +1 more source