Results 31 to 40 of about 1,333 (177)

Multi-sensory microwave photonic address measuring system for intestinal manometry

Физика волновых процессов и радиотехнические системы, 2019
Solutions for a multi-sensor catheter in high resolution manometry based on classical interrogation with wave separation of fiber optic sensors or their polyharmonic probing already exist.
A.F. Agliullin, V.V. Purtov, A.Zh. Sakhabutdinov, I.I. Nureev, A.A. Tyazhelova, L.M. Sarvarova, S.V. Vasiliev, I.U. Kurbiev, A.D. Proskuryakov, V.V. Kadushkin   +9 more
doaj   +1 more source

Highly Dense FBG Temperature Sensor Assisted with Deep Learning Algorithms

Sensors, 2021
In this paper, we demonstrate the application of deep neural networks (DNNs) for processing the reflectance spectrum from a fiberoptic temperature sensor composed of densely inscribed fiber bragg gratings (FBG).
Alexey Kokhanovskiy, Nikita Shabalov, Alexandr Dostovalov, Alexey Wolf   +3 more
doaj   +1 more source

Probing the dispersive properties of optical fibers with an array of femtosecond-written fiber Bragg gratings [PDF]

, 2021
We propose an efficient method to determine the effective refractive index of step-index optical fibers from the visible to the mid-IR and thus allowing to infer their dispersive properties over a broad spectral range.
Réal Vallée (383970), Tommy Boilard (9734387), Martin Bernier (3963527)   +2 more
core   +1 more source

Study on the Design and Performance of a Glove Based on the FBG Array for Hand Posture Sensing

Sensors, 2023
This study introduces a new wearable fiber-optic sensor glove. The glove utilizes a flexible material, polydimethylsiloxane (PDMS), and a silicone tube to encapsulate fiber Bragg gratings (FBGs).
Hongcheng Rao, Binbin Luo, Decao Wu, Pan Yi, Fudan Chen, Shenghui Shi, Xue Zou, Yuliang Chen, Mingfu Zhao   +8 more
doaj   +1 more source

Interferometric time division FBG interrogator and multiplexer with static, dynamic, and absolute wavelength measurement capabilities [PDF]

, 2012
We report on the design and preliminary testing of an interferometric interrogator capable of large-scale time-division multiplexing of FBG sensors. The scheme employs a passive algorithm for phase demodulation, allowing changes in FBG sensor reflected ...
Philip Orr, Niewczas, Pawel, Paweł Niewczas, Alan Paterson, Paterson, Alan, Orr, Philip   +5 more
core   +1 more source

FPGA-Based Dynamic Wavelength Interrogation System for Thousands of Identical FBG Sensors

Photonics, 2022
Under realistic scenarios, more fiber Bragg gratings (FBGs) are always expected to be multiplexed in one sensor array to share the expensive optical components and electrical devices.
Jiaqi Wang, Xuelei Fu, Hui Gao, Xin Gui, Honghai Wang, Zhengying Li   +5 more
doaj   +1 more source

Dispersive Fourier Transformation for Versatile Microwave Photonics Applications [PDF]

, 2014
: Dispersive Fourier transformation (DFT) maps the broadband spectrum of an ultrashort optical pulse into a time stretched waveform with its intensity profile mirroring the spectrum using chromatic dispersion.
Wang, Chao, Chao Wang
core   +1 more source

An All-Fiber Optical Sensor Combined with FBG and CFBG-FP for Attitude Estimation

Sensors, 2022
In order to meet the needs of attitude correction of the optical fiber sensor array, an all-fiber optical sensor combined with FBG and CFBG-FP is proposed to monitor its attitude angle.
Yifan Li, Shuidong Xiong, Ji Xia
doaj   +1 more source

Distributed photonic instrumentation for smart grids [PDF]

, 2013
Photonic sensor networks possess the unique potential to provide the instrumentation infrastructure required in future smart grids by simultaneously addressing the issues of metrology and communications.
Pawel Niewczas, Niewczas, Pawel, Phil Beaumont, Fusiek, Grzegorz, Booth, Campbell, Campbell Booth, Grzegorz Fusiek, Orr, Philip, Kawano, Fumio, Philip Orr, Beaumont, Phil, Dysko, Adam, Adam Dysko, Fumio Kawano   +13 more
core   +1 more source

A Microwave Photonics True-Time-Delay System Using Carrier Compensation Technique Based on Wavelength Division Multiplexing

Photonics, 2022
A novel microwave photonic true-time-delay (TTD) system using carrier compensation technology is proposed and experimentally demonstrated. Wavelength division multiplexing combines ten lasers into a single beam.
Yiru Zhao, Chaoquan Wang, Zeping Zhao, Weijie Zhang, Jianguo Liu   +4 more
doaj   +1 more source