Highly sensitive operation of intensity-based fiber-optic vibration sensor using cascaded long period fiber grating

2014 ◽  
Author(s):  
Satoshi Tanaka ◽  
Osamu Tsukida ◽  
Makoto Takeuchi ◽  
Shingo Tekuramori ◽  
Ryotaro Uchimura ◽  
...  
Keyword(s):  
Fiber Optic ◽  
Vibration Sensor ◽  
Fiber Grating ◽  
Long Period Fiber Grating ◽  
Long Period ◽  
Highly Sensitive ◽  
Period Fiber Grating

Fiber-Optic Mechanical Vibration Sensor Using Long-Period Fiber Grating

2009 ◽  
Vol 48 (7) ◽  
pp. 07GE05 ◽  
Author(s):  
Satoshi Tanaka ◽  
Hiroyuki Somatomo ◽  
Atsushi Wada ◽  
Nobuaki Takahashi
Keyword(s):  
Fiber Optic ◽  
Mechanical Vibration ◽  
Vibration Sensor ◽  
Fiber Grating ◽  
Long Period Fiber Grating ◽  
Long Period ◽  
Period Fiber Grating

Research of Simultaneous Measurement of Temperature and Strain of Fiber Optic Cable Material

2012 ◽  
Vol 507 ◽  
pp. 30-33
Author(s):  
Xue Jun Zhang ◽  
Hong Tao Guo
Keyword(s):  
Simultaneous Measurement ◽  
Fiber Optic ◽  
Fiber Grating ◽  
Mean Square ◽  
Fiber Optic Cable ◽  
Long Period Fiber Grating ◽  
Long Period ◽  
Polarization Maintaining Fiber ◽  
Polarization Maintaining ◽  
Period Fiber Grating

Simultaneous measurement of strain and temperature was demonstrated by using a long-period fiber grating inscribed on a polarization-maintaining fiber. This paper analyses the intersect senstive questions in terms of strain and temperature of fiber optic cable material. It also proposes a new way to carry out simultaneous measurements of strain and temperature. Experimental results show mean square deviations of 15.6 με and 0.7°C for strain and temperature, respectively.

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