Optimized Placement of Distributed Fiber Optic Sensors for Accurate Strain Monitoring of Buried Pipelines in Landslide-Prone Areas by Alarifi Hamzh, Hisham Mohamad, Phromphat Thansirichaisree

Get full text

Optimized Neural Network Method for Temperature Estimation along Optical Fiber by LI Suya, DONG Yanwei, LI Lin, ZHANG Chi, LI Nan, NING Qi, CHEN Yonghui

Subjects: “…distributed optical fiber sensor…”
Get full text

INTEGRATION OF DISTRIBUTED INERTIAL NAVIGATION SYSTEMS BUILT AROUND FIBER-OPTIC AND MICROELECTROMECHANICAL SENSORS by A. V. Chernodarov, A. P. Patrikeev, I. I. Merkulova, S. I. Ivanov

“…In addition, due to restrictions on overall dimensions and weight, SINSs of surveillance systems are built on the basis of microelectromechanical sensors (MEMSs). Such sensors have a wide insensitivity zone and low accuracy. …”
Get full text

Apodization Optimization of FBG Strain Sensor for Quasi-Distributed Sensing Measurement Applications by Fahd Chaoui, Otman Aghzout, Mounia Chakkour, Mounir El Yakhloufi

“…A novel optimized apodization of Fiber Bragg Grating Sensor (FBGS) for quasi-distributed strain sensing applications is developed and introduced in this paper. …”
Get full text

Research on Displacement Monitoring of Key Points in Caverns Based on Distributed Fiber Optic Sensing Technology by Jiangdong Wang, Ziming Xiong, Sheng Li, Hao Lu, Minqian Sun, Zhizhong Li, Hao Chen

Get full text

Registration of Sounds Emitted by the Madagascar Hissing Cockroach Using a Distributed Acoustic Sensor by Artem T. Turov, Yuri A. Konstantinov, Ekaterina E. Totmina, Anna G. Votinova, Grigoriy F. Masich, Dmitry A. Korobko, Andrei A. Fotiadi

“…Recent advancements have expanded the applications of fiber-optic distributed acoustic sensors (DAS), including their use in monitoring the acoustic activity of insects, which can be either harmful or beneficial to agriculture. …”
Get full text

Coherent BOTDA Sensor With Single-Sideband Modulated Probe Light by Zonglei Li, Lianshan Yan, Liyang Shao, Wei Pan, Bin Luo, Jiawei Liang, Haijun He

Get full text

A Cost-Effective Distributed Acoustic Sensor Using a Commercial Off-the-Shelf DFB Laser and Direct Detection Phase-OTDR by Yonas Muanenda, Claudio J. Oton, Stefano Faralli, Fabrizio Di Pasquale

“…By externally modulating such lasers with cyclic pulse coding, we demonstrate a distributed acoustic sensor capable of measuring vibrations of up to 500 Hz over 5 km of standard single-mode fiber with 5-m spatial resolution with ∼9-dB signal-to-noise ratio (SNR) improvement compared with the single-pulse equivalent. …”
Get full text

Demonstration of Large Curvature Radius Shape Sensing Using Optical Frequency Domain Reflectometry in Multi-Core Fibers by Zeen Chen, Chenhuan Wang, Zhenyang Ding, Dongfang Zhu, Haohan Guo, Ming Pan, Yin Yu, Kun Liu, Junfeng Jiang, Tiegen Liu

Get full text

Structure and Wiring Optimized TT/MT Double‐Helical Fiber Sensors: Fabrication and Applications in Human Motion Monitoring and Gesture Recognition by Ziwei Chen, Daoxiong Qian, Dandan Xie, Chunxia Gao, Jian Shi, Hideaki Morikawa, Chunhong Zhu

“…This study provides a novel approach to optimize the electrode distribution in fiber‐based flexible sensors through an internally encapsulated double‐helical structure, making a significant contribution to the field of flexible sensing.…”
Get full text

Real-time torque distribution simulation of parallel hybrid vehicle engine by Jing Wang

“…This study aims to develop a high-precision, robust torque distribution model to enhance energy utilization while addressing interference from environmental noise and extreme temperatures.MethodsA real-time torque distribution model integrates three core components: a Markov Decision Process framework transforms torque allocation into a mathematical optimization problem; the Proximal Policy Optimization algorithm enhanced with Prioritized Experience Replay dynamically generates control strategies; and Fiber Bragg Grating sensors achieve millisecond-level torque measurement by correlating shaft strain forces with wavelength shifts. …”
Get full text

Interference Fading Mitigation in Coherent <inline-formula><tex-math notation="LaTeX">$\Phi$</tex-math></inline-formula>-OTDR Based on Subband Phase-Shift Transform by Yafeng Cheng, Hanyong Wang, Desheng Li, Ying Qiu, Ming Luo, Xu Zhang, Jing Zhang, Zhichao Wu, Tianye Huang, Xiang Li

Get full text

Deep learning-based phase demodulation for distributed acoustic sensor by Yiming Tang, Kewei Liu, Chen Liu, Haiyong Wu, Rugang Wang, Mengmeng Chen, Fei Xu

“…In this paper, a phase demodulation algorithm for distributed acoustic sensor (DAS) data processing was developed using deep learning framework. …”
Get full text

Development and performance testing of OTDR-based twisted fiber optic strain sensors by Qiangsheng TAO, Yingming LI, Xiangjun WANG, Chaotao FAN, Demao GUO, Wencong DUAN

“…The effects of spring diameter, pitch, number of turns, and compression displacement on fiber optic loss and sensor sensitivity were analyzed, and the sensor structure was optimized through performance testing. …”
Get full text

Design and Evaluation of Real-Time Data Storage and Signal Processing in a Long-Range Distributed Acoustic Sensing (DAS) Using Cloud-Based Services by Abdusomad Nur, Yonas Muanenda

“…In cloud-based Distributed Acoustic Sensing (DAS) sensor data management, we are confronted with two primary challenges. …”
Get full text

Analysis of Spontaneous Raman and Rayleigh Scatterings in Distributed Fiber Raman Amplification Systems Based on a Random Distribution Model by Qiguang Feng, Wei Li, Liyan Huang

“…The simulations agreed well with our experimental measurements, proving that our model efficiently described stochastic scattering spectra and distributions in FRAs. Our theory accurately analyzed the distribution and evolution of scattering along the fiber and is a promising tool for optimizing the performance of distributed fiber systems, especially systems with distributed amplification such as fiber communication systems, random feedback fiber lasers, and fiber sensors.…”
Get full text

Experimental Investigation of the Evaluation of the Cement Hydration Process in the Annular Space Using Distributed Fiber Optic Temperature Sensing by Zhong Li, Mengbo Li, Huan Guo, Yi Wu, Leixiang Sheng, Jingang Jiao, Zhenbo Li, Weibo Sui

Get full text

Optimal Coherence Length Control in Interferometric Fiber Optic Hydrophones via PRBS Modulation: Theory and Experiment by Wujie Wang, Qihao Hu, Lina Ma, Fan Shang, Hongze Leng, Junqiang Song

Get full text

A Miniaturized FBG Tactile Sensor for the Tip of a Flexible Ureteroscope by Shiyuan Dong, Sen Ma, Tenglong Zhou, Yuyang Lou, Xuanwei Xiong, Keyu Wei, Dong Luo, Jianwei Wu, Huanhuan Liu, Ran Tao, Tianyu Yang, Yuming Dong

“…This work introduces a novel fiber Bragg grating (FBG)-based tactile sensor specifically developed for real-time force monitoring at the tips of flexible ureteroscopes. …”
Get full text

Inclination information-aided circumferential deformation reconstruction error correction method for CFRP belt integrated with optical fiber sensor by Zhengfang Wang, Wenhao Li, Jing Wang, Jinqiao Cui

“…In view of the problem that the distributed optical fiber-based deformation reconstruction method can produce serious accumulated errors, this paper developed a smart fiber optic sensor belt that employs a carbon-fiber composite material as the matrix and strain-sensing fiber optics as the sensing element and is based on the key-point dip angle information acquired by a high-precision tilt sensor. …”
Get full text