scholarly journals Study of fiber Bragg grating characteristics under local transverse force

2008 ◽  
Vol 57 (12) ◽  
pp. 7737
Author(s):  
Cai Lu-Lu ◽  
Yin Wen-Wen ◽  
Wu Fei
Keyword(s):  
Fiber Bragg Grating ◽  
Transverse Force ◽  
Bragg Grating

scholarly journals Maximum amplification of a string transverse-force amplifier in fiber Bragg grating accelerometers

OSA Continuum ◽  
2019 ◽  
Vol 2 (3) ◽  
pp. 938
Author(s):  
Kuo Li ◽  
Tommy H. T. Chan ◽  
Man Hong Yau ◽  
David P. Thambiratnam ◽  
Hwa Yaw Tam
Keyword(s):  
Fiber Bragg Grating ◽  
Transverse Force ◽  
Bragg Grating ◽  
Maximum Amplification

scholarly journals Review of the Strain Modulation Methods Used in Fiber Bragg Grating Sensors

2016 ◽  
Vol 2016 ◽  
pp. 1-8 ◽  
Author(s):  
Kuo Li
Keyword(s):  
Fiber Bragg Grating ◽  
Transverse Force ◽  
Bragg Grating ◽  
Fiber Bragg Grating Sensors ◽  
Displacement Sensors ◽  
Strain Change ◽  
Fbg Sensors ◽  
Strain Modulation ◽  
Modulation Methods ◽  
Reduced Temperature

Fiber Bragg grating (FBG) is inherently sensitive to temperature and strain. By modulating FBG’s strain, various FBG sensors have been developed, such as sensors with enhanced or reduced temperature sensitivity, strain/displacement sensors, inclinometers, accelerometers, pressure meters, and magnetic field meters. This paper reviews the strain modulation methods used in these FBG sensors and categorizes them according to whether the strain of an FBG is changed evenly. Then, those even-strain-change methods are subcategorized into (1) attaching/embedding an FBG throughout to a base and (2) fixing the two ends of an FBG and (2.1) changing the distance between the two ends or (2.2) bending the FBG by applying a transverse force at the middle of the FBG. This review shows that the methods of “fixing the two ends” are prominent because of the advantages of large tunability and frequency modulation.

scholarly journals Fiber Bragg grating strain modulation based on nonlinear string transverse-force amplifier

2013 ◽  
Vol 38 (3) ◽  
pp. 311 ◽  
Author(s):  
Kuo Li ◽  
Man Hong Yau ◽  
Tommy H. T. Chan ◽  
David Thambiratnam ◽  
Hwa Yaw Tam
Keyword(s):  
Fiber Bragg Grating ◽  
Transverse Force ◽  
Bragg Grating ◽  
Strain Modulation ◽  
Nonlinear String
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