scholarly journals High-Speed Interrogation for Large-Scale Fiber Bragg Grating Sensing

Sensors ◽  
2018 ◽  
Vol 18 (3) ◽  
pp. 665 ◽  
Author(s):  
Chenyuan Hu ◽  
Wei Bai
Keyword(s):  
Fiber Bragg Grating ◽  
High Speed ◽  
Large Scale ◽  
Bragg Grating

scholarly journals A Review of Recent Results on Simultaneous Interrogation of Multiple Fiber Bragg Grating-Based Sensors Using Microwave Photonics

2019 ◽  
Vol 9 (2) ◽  
pp. 298 ◽  
Author(s):  
Lawrence R. Chen ◽  
Maria-Iulia Comanici ◽  
Parisa Moslemi ◽  
Jingjing Hu ◽  
Peter Kung
Keyword(s):  
Fiber Bragg Grating ◽  
High Speed ◽  
Large Scale ◽  
Microwave Photonics ◽  
Pulse Generation ◽  
Bragg Grating ◽  
Correlation Peak ◽  
Fabry Perot ◽  
Fbg Sensors ◽  
Power Mapping

We review recent results on exploiting microwave photonics to enable simultaneous interrogation of multiple fiber Bragg grating (FBG)-based sensors. In particular, we describe the use of (1) microwave photonic filtering and (2) chirped microwave pulse generation and compression as a means to map the wavelength (spectral) changes in the response of FBG-based sensors (specifically, an in-fiber Fabry-Pérot cavity sensor based on FBGs, FBG sensors directly, and a linearly chirped FBG sensor) to applied temperature (or strain) to the power of a radio-frequency signal (i.e., a wavelength-to-power mapping) or to the correlation peak of the compressed microwave signal. The approaches support high-resolution and high-speed interrogation and can be suitable for large scale sensing networks.

scholarly journals 100 MHz high-speed strain monitor using fiber Bragg grating and optical filter applied for magnetostriction measurements of cobaltite at magnetic fields beyond 100 T

2018 ◽  
Vol 536 ◽  
pp. 847-849 ◽  
Author(s):  
Akihiko Ikeda ◽  
Toshihiro Nomura ◽  
Yasuhiro H. Matsuda ◽  
Shuntaro Tani ◽  
Yohei Kobayashi ◽  
...  
Keyword(s):  
Magnetic Fields ◽  
Fiber Bragg Grating ◽  
High Speed ◽  
Optical Filter ◽  
Bragg Grating

Crosstalk and Ghost Gratings in a Large-Scale Weak Fiber Bragg Grating Array

2017 ◽  
Vol 35 (10) ◽  
pp. 2032-2036 ◽  
Author(s):  
Huiyong Guo ◽  
Li Qian ◽  
Ciming Zhou ◽  
Zhou Zheng ◽  
Yinquan Yuan ◽  
...  
Keyword(s):  
Fiber Bragg Grating ◽  
Large Scale ◽  
Bragg Grating ◽  
Grating Array

Experiment and Research of Using Fiber Bragg Grating to Monitor the Dynamic Response of Asphalt Concrete

2011 ◽  
Vol 97-98 ◽  
pp. 301-304 ◽  
Author(s):  
Ke Li ◽  
Jian Guang Xie
Keyword(s):  
Dynamic Response ◽  
Fiber Bragg Grating ◽  
Asphalt Concrete ◽  
High Speed ◽  
Load Test ◽  
Bragg Grating ◽  
Static Load Test ◽  
Practical Applications ◽  
Fbg Sensor ◽  
On The Road

Based on the fiber Bragg grating sensing technology, a FBG sensor is designed to monitor the dynamic response of asphalt concrete; the sensitivity coefficient of FBG sensor is 1.28pm/με. Through the static load test, the correlation between strain and wavelength variation is 0.1797µε/pm, after second packaged and embedded in SMA-13 asphalt concrete. The instantaneous impact on the road of high-speed vehicles is simulated by using drop hammer. The results are shown that the Sensor can satisfy the requirements of practical applications and succeed in monitoring the dynamic response of asphalt concrete. The monitored signal can reflect the viscoelastic-plastic deformation law of asphalt concrete. The sensor can be used to monitor the dynamic response of asphalt concrete.

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