Results 201 to 210 of about 7,750 (233)

A high sensitive fiber Bragg grating(FBG) geophone detecting system

SPIE Proceedings, 2012
A high sensitive fiber Bragg grating (FBG) geophone detecting system based on narrow line width distributed feedback (DFB) laser is realized by using filtering demodulation. Sensitivity of FBG geophone lies on the structure of the sensor shell and the shape of the reflectivity spectrum of FBG.
Jin-Yu Wang, Hai-Feng Qi, Guang-Dong Song, Chang Wang, Tong-Yu Liu   +4 more
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Fiber Bragg Grating (FBG) Based Chemical Sensor

2008
VCU Theses and ...
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Embedded fiber optic Bragg grating (FBG) detonation velocity sensor

SPIE Proceedings, 2009
In order to fully calibrate hydrocodes and dynamic chemistry burn models, initiation models and detonation models of high explosives, the ability to continuously measure the detonation velocity within an explosive is required. Progress on an embedded velocity diagnostic using a 125 micron diameter optical fiber containing a chirped fiber Bragg grating ...
Jerry Benterou, Corey V. Bennett, Garrett Cole, D. E. Hare, Chadd May, Eric Udd, Stephen J. Mihailov, Ping Lu   +7 more
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Miniature fiber Bragg grating sensor interrogator (FBG-Transceiver) system

SPIE Proceedings, 2007
This paper describes recent progress conducted towards the development of a miniature fiber Bragg grating sensor interrogator (FBG-Transceiver TM ) system based on multi-channel integrated optic sensor (InOSense TM ) microchip technology. The hybrid InOSense TM microchip technology enables the integration of all of the functionalities, both passive
Edgar A. Mendoza, Cornelia Kempen, Craig Lopatin   +2 more
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Development of fiber Bragg grating (FBG) permanent sensor technology for borehole applications

SPIE Proceedings, 2004
A new downhole measurement technique has been proposed based on optical fiber Bragg grating (FBG) sensors for long-term monitoring of strain and its corresponding stress build-up in geological fault zones. Design and development of the present downhole sensor installation equipment have been demonstrated.
Schmidt-Hattenberger, C. ; https://orcid.org/0000-0002-3058-7469, Otto, P., Töpfer, M., Borm, G., Baumann, I.   +4 more
openaire   +2 more sources

Sensitivity analysis and temperature performance of the fiber Bragg grating (FBG) acceleration sensor

SPIE Proceedings, 2012
ABSTRACT A high sensitive fiber Bragg grating (FBG) acceleration sensor based on filtering demodulation is analyzed on sensitivity, resolution and temperature experiment. Sensitivity and resolution of FBG sensor lies on the structure of the sensor shell and the shape of the reflec tivity spectrum of FBG.
Jin-Yu Wang, Hu Jie, Guang-Dong Song, Chang Wang, Tong-Yu Liu   +4 more
openaire   +1 more source

Hydrogen sensors based on palladium electroplated fiber Bragg gratings (FBG)

13th International Conference on Optical Fiber Sensors, 1999
The response of a new hydrogen sensor based on palladium electroplated Fiber Bragg Grating (FBG) in 0.6p hydrogen at 95°C is reported. A heat treatment at 150°C in air is critical to fast sensor response.
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Temperature compensation of FBG sensors with double fiber Bragg gratings

2010
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Wang, H-P, Lin, B, Chen, R, Xie, S-S, Cheng, M   +4 more
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Resonant Fiber Bragg Grating (FBG) force/strain sensor

European Workshop on Optical Fibre Sensors (EWOFS 2023), 2023
Ashkenazy Eli, Slava Krylov, Moshe Tur
openaire   +1 more source

Fiber bragg grating FBG as temperature sensor for the human body in review

AIP Conference Proceedings, 2022
Wasan Ali, Ibrahim Abdullah Murdas
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