Measurement of Ultralow Level Bioethanol Concentration for Production Using Evanescent Wave Based Optical Fiber Sensor

2018 ◽  
Vol 67 (4) ◽  
pp. 780-788 ◽  
Author(s):  
Sanober Farheen Memon ◽  
Muhammad Mahmood Ali ◽  
J. Tony Pembroke ◽  
Bhawani Shankar Chowdhry ◽  
Elfed Lewis
Keyword(s):  
Optical Fiber ◽  
Evanescent Wave ◽  
Optical Fiber Sensor ◽  
Fiber Sensor

scholarly journals Detection of Cadmium Ion by Evanescent Wave Based Chitosan Coated Optical Fiber Sensor

2017 ◽  
Vol 824 ◽  
pp. 012002 ◽  
Author(s):  
I Yulianti ◽  
S S Edy ◽  
B A Saputra ◽  
M P Aji ◽  
Susanto ◽  
...  
Keyword(s):  
Optical Fiber ◽  
Evanescent Wave ◽  
Optical Fiber Sensor ◽  
Fiber Sensor ◽  
Cadmium Ion

Optical Fiber Sensor for Mercury Ion Detection Based on Quantum Dots and Evanescent Wave Sensing

2018 ◽  
Vol 38 (10) ◽  
pp. 1006008
Author(s):  
刘婷 Liu Ting ◽  
王文琪 Wang Wenqi ◽  
刘志群 Liu Zhiqun ◽  
易定容 Yi Dingrong
Keyword(s):  
Quantum Dots ◽  
Optical Fiber ◽  
Evanescent Wave ◽  
Optical Fiber Sensor ◽  
Mercury Ion ◽  
Fiber Sensor ◽  
Ion Detection ◽  
Mercury Ion Detection

Evanescent wave optical fiber sensor using adsorption LB films

2000 ◽  
Vol 115 (1-3) ◽  
pp. 37-39 ◽  
Author(s):  
H. Matsuo ◽  
S. Kuniyoshi ◽  
K. Kudo ◽  
K. Tanaka
Keyword(s):  
Optical Fiber ◽  
Evanescent Wave ◽  
Optical Fiber Sensor ◽  
Fiber Sensor ◽  
Lb Films

Method of Measuring Tendon Force using Optical Fiber Sensor

2018 ◽  
Vol 56 (1) ◽  
pp. 94-99
Author(s):  
N. Sogabe ◽  
S. Nakaue ◽  
K. Chikiri ◽  
M. Hayakawa
Keyword(s):  
Optical Fiber ◽  
Optical Fiber Sensor ◽  
Fiber Sensor ◽  
Tendon Force

scholarly journals Oxygen concentration measurement in the porous cathode of a lithium-air battery using a fine optical fiber sensor

2019 ◽  
Vol 5 (0) ◽  
pp. 19-00095-19-00095
Author(s):  
Shogo FUJIMOTO ◽  
Suguru UEMURA ◽  
Nobuyuki IMANISHI ◽  
Shuichiro HIRAI
Keyword(s):  
Optical Fiber ◽  
Oxygen Concentration ◽  
Optical Fiber Sensor ◽  
Concentration Measurement ◽  
Fiber Sensor ◽  
Porous Cathode ◽  
Air Battery

scholarly journals Measurement Improvement of Distributed Optical Fiber Sensor via Lorenz Local Single Peak Fitting Algorithm

Symmetry ◽  
2021 ◽  
Vol 13 (7) ◽  
pp. 1166
Author(s):  
Bin Liu ◽  
Jianping He ◽  
Shihai Zhang ◽  
Yinping Zhang ◽  
Jianan Yu ◽  
...  
Keyword(s):  
Optical Fiber ◽  
Frequency Shift ◽  
Optical Fiber Sensor ◽  
Gain Spectrum ◽  
Fiber Sensor ◽  
Peak Fitting ◽  
Fitting Algorithm ◽  
Distributed Optical Fiber Sensor ◽  
Brillouin Gain ◽  
Distributed Optical Fiber

Brillouin frequency shift (BFS) of distributed optical fiber sensor is extracted from the Brillouin gain spectrum (BGS), which is often characterized by Lorenz type. However, in the case of complex stress and optical fiber self damage, the BGS will deviate from Lorenz type and be asymmetric, which leads to the extraction error of BFS. In order to enhance the extraction accuracy of BFS, the Lorenz local single peak fitting algorithm was developed to fit the Brillouin gain spectrum curve, which can make the BSG symmetrical with respect to the Brillouin center frequency shift. One temperature test of a fiber-reinforced polymer (FRP) packaged sensor whose BSG curve is asymmetric was conducted to verify the idea. The results show that the local region curve of BSG processed by the developed algorithm has good symmetry, and the temperature measurement accuracy obtained by the developed algorithm is higher than that directly measured by demodulation equipment. Comparison with the reference temperature, the relative measurement error measured by the developed algorithm and BOTDA are within 4% and 8%, respectively.

Sign in / Sign up

Export Citation Format

Share Document