Results 21 to 30 of about 3,866,750 (249)

Development of a Polymeric Arrayed Waveguide Grating Interrogator for Fast and Precise Lithium-Ion Battery Status Monitoring

Batteries, 2019
We present the manufacturing and utilization of an all-polymer arrayed waveguide grating (AWG) interacting with a fiber Bragg grating (FBG) for battery status monitoring on the example of a 40 Ah lithium-ion battery.
Jan Meyer, Antonio Nedjalkov, Elke Pichler, Christian Kelb, Wolfgang Schade   +4 more
doaj   +1 more source

Fiber-optic chemical sensing with Langmuir-Blodgett overlay waveguides [PDF]

, 1999
Fiber-optic chemical sensing has been demonstrated with a side-polished single- mode optical fiber, evanescently coupled to chemically sensitive Langmuir- Blodgett (LB) overlay waveguides.
Tatam, Ralph P., Flannery, D., James, Stephen W., Ashwell, Geoffrey J.   +3 more
core   +1 more source

Optical fiber sensing based on reflection laser spectroscopy [PDF]

, 2010
An overview on high-resolution and fast interrogation of optical-fiber sensors relying on laser reflection spectroscopy is given. Fiber Bragg-gratings (FBGs) and FBG resonators built in fibers of different types are used for strain, temperature and ...
De Natale, Paolo, Ralph P. Tatam, Chow, Jong H., Jong H. Chow, Mario Salza, Ballard, Nicholas, Gangopadhyay, Tarun, Paz-Soldan, Daniel, Tatam, Ralph, Ferarro, Pietro, Lam, Timothy T. -Y., Lam, Timothy T-Y, Gianluca Gagliardi, Barnes, Jack A., Daniel Paz-Soldan, Gangopadhyay, Tarun Kumar, Tatam, Ralph P., Chow, Jong, Pietro Ferraro, Tarun K. Gangopadhyay, Jack A. Barnes, Loock, Hans-Peter, Edmond Chehura, Paolo De Natale, Gangopadhyay, Tarun K., Salza, Mario, Ferraro, Pietro, Hans-Peter Loock, Nicholas Ballard, Barnes, Jack, Chehura, Edmon, Gagliardi, Gianluca, Timothy T.-Y. Lam, Lam, Timothy, Chehura, Edmond, Salza M, Lam, T.T., Gagliardi, G., Tatam RP, De Natale P, Barnes JA, Tatam, R.P., Chow JH, Ferraro P, Gangopadhyay, T.K., Chehura, E., Loock HP, Gagliardi G, PazSoldan D, Chow, J.H., Ferraro, P., Lam TTY, Salza, M., Ballard N, Chehura E, Gangopadhyay TK   +55 more
core   +1 more source

A Hybrid Optical Fiber and FSO System for Bidirectional Communications Used in Bridges [PDF]

, 2015
In this paper, a 10-Gb/s hybrid optical fiber (OF) and free-space optics (FSO) link as part of a bidirectional long-haul OF transmission for application in outdoor environments such as bridges is proposed.
Ghassemlooy, Zabih, Yu, Yi-Lin, Liaw, Shien-Kuei, Chou, Hsi-Hsir, Le Minh, Hoa   +4 more
core   +1 more source

Study of the Temperature Optical Fiber Sensor using OTDR

RMUTL Engineering Journal, 2023
This paper demonstrates the optical fiber sensor for temperature sensing using OTDR (Optical Time Domain Reflectometer) with the application of telecommunication optical fiber.
Supaset Junon, Athikom Roeksabutr
doaj   +1 more source

Image Processing Technique for Zinc Ion Sensing Using a Crystalline Fiber Sensor [PDF]

Engineering and Technology Journal, 2021
In this paper, crystalline optical fibers were used as a sensor for sensing the zinc ion concentration using the image processing technique. The image of the laser spot transmitted through the optical fiber crystal sensor for each concentration of zinc ...
Omar Hassan, Razi Al-azawi, Bushra Mahdi
doaj   +1 more source

Strain Transfer Function of Distributed Optical Fiber Sensors and Back-Calculation of the Base Strain Field

Sensors, 2021
Distributed optical fiber sensors are a promising technology for monitoring the structural health of large-scale structures. The fiber sensors are usually coated with nonfragile materials to protect the sensor and are bonded onto the structure using ...
Sangyoung Yoon, Meadeum Yu, Eunho Kim, Jaesang Yu   +3 more
doaj   +1 more source

Refractive Index Measurement of Lithium Ion Battery Electrolyte with Etched Surface Cladding Waveguide Bragg Gratings and Cell Electrode State Monitoring by Optical Strain Sensors

Batteries, 2019
In this scientific publication, a new sensor approach for status monitoring, such as state of charge and state of health, of lithium ion batteries by using special Bragg gratings inscribed into standard optical glass fibers is presented.
Antonio Nedjalkov, Jan Meyer, Alexander Gräfenstein, Benjamin Schramm, Martin Angelmahr, Julian Schwenzel, Wolfgang Schade   +6 more
doaj   +1 more source

Photonic crystal fiber half-taper probe based refractometer [PDF]

, 2014
A compact singlemode - photonic crystal fiber - singlemode fiber tip (SPST) refractive index sensor is demonstrated in this paper. A CO2 laser cleaving technique is utilised to provide a clean-cut fiber tip which is then coated by a layer of gold to ...
Bo, Lin, Brambilla, Gilberto, Ding, Ming, Sun, Weimin, Farrell, Gerald, Semenova, Yuliya, Guan, Chunying, Yuan, Libo, Wang, Pengfei   +8 more
core   +1 more source

Fusion of Multiple Pyroelectric Characteristics for Human Body Identification

Algorithms, 2014
Due to instability and poor identification ability of single pyroelectric infrared (PIR) detector for human target identification, this paper proposes a new approach to fuse the information collected from multiple PIR sensors for human identification ...
Wanchun Zhou, Ji Xiong, Fangmin Li, Na Jiang, Ning Zhao   +4 more
doaj   +1 more source