Kissinger, ThomasChehura, EdmonJames, Stephen W.Tatam, Ralph P.2017-09-222017-09-222017-06-26Thomas 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.97815106110300277-786Xhttps://dspace.lib.cranfield.ac.uk/handle/1826/12539Dynamic 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.enAttribution-Non-Commercial 3.0 Unported (CC BY-NC 3.0) You are free to: Share — copy and redistribute the material in any medium or format, Adapt — remix, transform, and build upon the material. The licensor cannot revoke these freedoms as long as you follow the license terms. Under the following terms: Attribution — You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use. Information: Non-Commercial — You may not use the material for commercial purposes. No additional restrictions — You may not apply legal terms or technological measures that legally restrict others from doing anything the license permits.Conference paper