Usage of Multi-Axis Fiber Grating Strain Sensors to Support Nondestructive Evaluation of Composite Parts and Adhesive Bond Lines

2003 ◽  
Author(s):  
Eric Udd ◽  
Steve Kreger ◽  
Sean Calvert ◽  
Marley Kunzler ◽  
Katy Davol
Keyword(s):  
Nondestructive Evaluation ◽  
Adhesive Bond ◽  
Strain Sensors ◽  
Fiber Grating

Fiber Grating Strain Sensors

2003 ◽  
pp. 351-382
Author(s):  
Eric Udd ◽  
Whitten Schulz ◽  
Katy Davol ◽  
Marley Kunzler
Keyword(s):  
Strain Sensors ◽  
Fiber Grating

Transverse fiber grating strain sensors based on dual overlaid fiber gratings on polarization-preserving fibers

1998 ◽  
Author(s):  
Eric Udd ◽  
Whitten L. Schulz ◽  
John M. Seim ◽  
Drew V. Nelson ◽  
Alberto Makino
Keyword(s):  
Strain Sensors ◽  
Fiber Grating ◽  
Fiber Gratings ◽  
Transverse Fiber

The Comparison and Analysis of Fiber Grating Strain Sensor and Resistance Strain Slice for Transmission Tower Vibration Monitoring

2014 ◽  
Vol 533 ◽  
pp. 211-213
Author(s):  
Jin Feng Geng ◽  
Dong Fang Ma ◽  
Hong Sheng Cai ◽  
Wen Tao Wu ◽  
Jun Wei Dong ◽  
...  
Keyword(s):  
Fiber Bragg Grating ◽  
Strain Sensor ◽  
Strain Sensors ◽  
Resistance Strain ◽  
Vibration Monitoring ◽  
Bragg Grating ◽  
Fiber Grating ◽  
Transmission Tower ◽  
Existing Problems ◽  
Tower Vibration

Contrast advantages and existing problems of resistance strain slice and fiber grating strain sensor for tower vibration strain monitoring, compare the structure of the two, and do the on-site installation and experiments, analyze the monitoring data. It can make a conclusion that the properties of fiber bragg grating strain sensors are basic consistent with resistance strain slice. And fiber bragg grating strain sensors can be used for transmission tower vibration monitoring .

Stress Monitoring Research in Dancing Condition of Transmission Tower Based on FBG Sensors

2013 ◽  
Vol 448-453 ◽  
pp. 2249-2253 ◽  
Author(s):  
Dong Fang Ma ◽  
Hong Sheng Cai ◽  
Liu Bin Zhang
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Strain Sensors ◽  
Fiber Grating ◽  
Maximum Point ◽  
Stress Monitoring ◽  
Transmission Tower ◽  
Element Analysis ◽  
Maximum Value ◽  
Fbg Sensors

The stress distribution on transmission tower was found out by finite element analysis. Combined with analysis results, FBG(Fiber grating) strain sensors were fixed on upper part of tower, cross-arm of tower and body of tower, to monitor the stress of tower in dancing condition. FBG sensor measuring results and finite element analysis results are consistent, and the error is less than 10%.Research indicates that the 24th point is the maximum point of stress at the wind speed of 20m, and the maximum value is beyond yield stress. So the part of tower needs to be reinforced to avoid danger occurring.

Health monitoring of an Oregon historical bridge with fiber grating strain sensors

1999 ◽  
Author(s):  
John M. Seim ◽  
Eric Udd ◽  
Whitten L. Schulz ◽  
Harold M. Laylor
Keyword(s):  
Health Monitoring ◽  
Strain Sensors ◽  
Fiber Grating
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