Simultaneous measurement of temperature and concentration of sugar solution based on hybrid fiber grating sensor

2014 ◽  
Vol 7 (3) ◽  
pp. 476-482
Author(s):  
赵明富 ZHAO Ming-fu ◽  
王念 WANG Nian ◽  
罗彬彬 LUO Bing-bing ◽  
施玉佳 SHI Yu-jia ◽  
曹李华 CAO Li-hua
Keyword(s):  
Simultaneous Measurement ◽  
Fiber Grating ◽  
Sugar Solution ◽  
Hybrid Fiber ◽  
Fiber Grating Sensor

Hybrid fiber Bragg grating/long period fiber grating sensor for strain/temperature discrimination

1996 ◽  
Vol 8 (9) ◽  
pp. 1223-1225 ◽  
Author(s):  
H.J. Patrick ◽  
G.M. Williams ◽  
A.D. Kersey ◽  
J.R. Pedrazzani ◽  
A.M. Vengsarkar
Keyword(s):  
Fiber Bragg Grating ◽  
Bragg Grating ◽  
Fiber Grating ◽  
Hybrid Fiber ◽  
Long Period Fiber Grating ◽  
Long Period ◽  
Fiber Grating Sensor ◽  
Period Fiber Grating

scholarly journals Hybrid Grating in Reduced-Diameter Fiber for Temperature-Calibrated High-Sensitivity Refractive Index Sensing

2019 ◽  
Vol 9 (9) ◽  
pp. 1923
Author(s):  
Biqiang Jiang ◽  
Zhen Hao ◽  
Dingyi Feng ◽  
Kaiming Zhou ◽  
Lin Zhang ◽  
...  
Keyword(s):  
Refractive Index ◽  
Simultaneous Measurement ◽  
Surrounding Medium ◽  
High Sensitivity ◽  
Fiber Grating ◽  
Bragg Resonance ◽  
Core Mode ◽  
Promising Alternative ◽  
Sensing Applications ◽  
Highly Sensitive

We propose and experimentally demonstrate a hybrid grating, in which an excessively tilted fiber grating (Ex-TFG) and a fiber Bragg grating (FBG) were co-inscribed in a reduced-diameter fiber (RDF). The hybrid grating showed strong resonances due to coupling among core mode and a set of polarization-dependent cladding modes. This coupling showed enhanced evanescent fields by the reduced cladding size, thus allowing stronger interaction with the surrounding medium. Moreover, the FBG’s Bragg resonance confined by the thick cladding was exempt from the change of the surrounding medium’s refractive index (RI), and then the FBG can work as a temperature compensator. As a result, the Ex-TFG in RDF promised a highly sensitive RI measurement, with a sensitivity up to ~1224 nm/RIU near the RI of 1.38. Through simultaneous measurement of temperature and RI, the temperature dependence of water’s RI is then determined. Therefore, the proposed hybrid grating with a spectrum of multi-peaks embedded with a sharp Bragg resonance is a promising alternative for the simultaneous measurement of multi-parameters for many RI-based sensing applications.

Fiber Grating Sensor with Enhanced Pressure and Temperature Sensitivity

2000 ◽  
Vol 17 (2) ◽  
pp. 115-116 ◽  
Author(s):  
Yun-Qi Liu ◽  
Zhuan-Yun Guo ◽  
Zhi-Guo Liu ◽  
Dong-Hui Zhao ◽  
Chun-Feng Ge ◽  
...  
Keyword(s):  
Temperature Sensitivity ◽  
Fiber Grating ◽  
Fiber Grating Sensor

A Multiple Fiber Grating Sensor System Using Code Division Multiple Access

2013 ◽  
Vol 765-767 ◽  
pp. 2444-2447 ◽  
Author(s):  
Wei Li ◽  
Yong Jia Zhang ◽  
Hong Qiao Wen
Keyword(s):  
Optical Fiber ◽  
Fiber Bragg Grating ◽  
Code Division Multiple Access ◽  
Multiple Access ◽  
Simulation Experiment ◽  
Fiber Grating ◽  
Sensing System ◽  
Fiber Grating Sensor ◽  
Fbg Sensors ◽  
Code Division Multiple

In order to increase the multiplying density of Fiber Bragg Grating (FBG) sensors, a novel FBG Sensing System based on CDMA technology has been developed. Simulation experiment indicates the CDMA technology combine with optical fiber grating sensing system together successfully. Furthermore, the system can distinguishes the FBG and enhance the FBG network band utilization.

Simultaneous measurement of directional torsion and temperature by using a DC-sampled helical long-period fiber grating

2021 ◽  
Vol 142 ◽  
pp. 107171
Author(s):  
Chengliang Zhu ◽  
Yong Zhao ◽  
Maoqing Chen ◽  
Ruijie Tong ◽  
Sheng Hu ◽  
...  
Keyword(s):  
Simultaneous Measurement ◽  
Fiber Grating ◽  
Long Period Fiber Grating ◽  
Long Period ◽  
Period Fiber Grating

scholarly journals Hybrid fiber grating cavity
for multi-parametric sensing

2010 ◽  
Vol 18 (10) ◽  
pp. 10473 ◽  
Author(s):  
Domenico Paladino ◽  
Giuseppe Quero ◽  
Christophe Caucheteur ◽  
Patrice Mégret ◽  
Andrea Cusano
Keyword(s):  
Fiber Grating ◽  
Hybrid Fiber
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