Interferometric fibre-optic curvature sensing for structural, directional vibration measurements
Date
2017-06-26
Supervisor/s
Journal Title
Journal ISSN
Volume Title
Publisher
SPIE
Department
Type
Conference paper
ISSN
0277-786X
Format
Free to read from
Citation
Thomas Kissinger, Edmon Chehura, Stephen W. James and Ralph P. Tatam. Interferometric fibre-optic curvature sensing for structural, directional vibration measurements. Measurement Systems for Industrial Inspection X, 2017, 26–29 June 2017, Munich, Germany.
Abstract
Dynamic fibre-optic curvature sensing using fibre segment interferometry is demonstrated using a cost-effective rangeresolved interferometry interrogation system. Differential strain measurements from four fibre strings, each containing four fibre segments of gauge length 20 cm, allow the inference of lateral vibrations as well as the direction of the vibration of a cantilever test object. Dynamic tip displacement resolutions in the micrometre range over a 21 kHz interferometric bandwidth demonstrate the suitability of this approach for highly sensitive fibre-optic directional vibration measurements, complementing existing laser vibrometry techniques by removing the need for side access to the structure under test.
Description
Software Description
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Github
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DOI
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