Three dimensional displacement measurement of transient elastic wave propagation using a multidimensional point-wise fiber bragg grating displacement sensor system
Journal
IUTAM Bookseries
Journal Volume
26
Start Page
303
End Page
315
ISSN
18753493
18753507
ISBN (of the container)
9789048191949
9781402041600
1402037953
9781402090899
9789048198863
9789400702882
1402041608
9781402095566
9781402059803
9781402064043
Date Issued
2010
Author(s)
Ma, Chien-Ching
Abstract
A fiber Bragg grating (FBG) sensor setup method that can allow the FBG to detect out-of-plane or in-plane point-wise displacement is demonstrated in this study. Based on this method, we successfully establish a multidimensional sensing system which contains one out-of-plane displacement sensor and two in-plane displacement sensors to measure the transient elastic wave propagation in a square thick plate subjected to impact loadings. The proposed system employs wavelength-optical intensity modulation techniques based on a long-period fiber grating filter and two FBG filters. The transient responses of out-of-plane particle motions measured by the FBG displacement sensor are compared with those obtained simultaneously by a laser Doppler vibrometer (LDV). The experimental results show that the proposed FBG displacement sensor system is capable of performing real-time measurement of three dimensional dynamic displacements for transient elastic wave propagation.
Event(s)
IUTAM Symposium on Recent Advances of Acoustic Waves in Solids, 2009
Subjects
Displacement Measurement
Elastic Waves
Laser Doppler Velocimeters
Transient Analysis
Wave Propagation
Plates (structural Components)
A.fibres
Displacement Sensor
Displacement Sensor Systems
Elastic Wave Propagation
Fiber Bragg Grating Sensors
Measurements Of
Out-of-plane
Point Wise
Three Dimensional Displacement Measurement
Transient Elastic Waves
Displacement Response
Mode Shapes
Thicker Plate
Fiber Bragg Gratings
SDGs
Publisher
Springer Science and Business Media B.V.
Description
IUTAM Symposium on Recent Advances of Acoustic Waves in Solids, 2009. Taipei. Conference code: 198999
Type
conference paper