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Fiber Optic Curvature Sensor

Leyendecker, Patrick and Haslinger, Robert (2014) Fiber Optic Curvature Sensor. In: IEEE Sensors 2014 Conference, pp. 43-46. IEEE Sensors 2014, 3.-5. Nov. 2014, Valencia, Spanien. ISBN 978-1-4799-0161-6

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Abstract

A fiber optic curvature sensor based on discrete Fiber Bragg gratings inscribed in a multi-core fiber is presented. The individual cores of the multi-core fiber are each interrogated by a custom-built spectrometer running at up to 20 kHz. They are interfaced with a custom-tapered combiner of single-core fibers fusion spliced to the multi-core fiber. The curvature and bend direction for each fiber segment is obtained from the geometric relation of strain measurements in all interrogated fiber cores, thus eliminating temperature influences and minimizing noise. In order to reconstruct the shape of the measurement fiber, both constant curvature and spline interpolation using homogeneous transformation matrices are performed and compared to given free space equilibrium state solutions for a Kirchhoff elastic rod.

Item URL in elib:https://elib.dlr.de/91762/
Document Type:Conference or Workshop Item (Speech)
Title:Fiber Optic Curvature Sensor
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Leyendecker, Patrickpatrick.leyendecker (at) dlr.deUNSPECIFIED
Haslinger, RobertRobert.Haslinger (at) dlr.deUNSPECIFIED
Date:3 November 2014
Journal or Publication Title:IEEE Sensors 2014 Conference
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Page Range:pp. 43-46
ISBN:978-1-4799-0161-6
Status:Published
Keywords:shape, 3D, FBG, FOS, fiber-optic, sensor, grating, spectrometer, curvature
Event Title:IEEE Sensors 2014
Event Location:Valencia, Spanien
Event Type:international Conference
Event Dates:3.-5. Nov. 2014
Organizer:IEEE
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Space Technology
DLR - Research area:Raumfahrt
DLR - Program:R SY - Technik für Raumfahrtsysteme
DLR - Research theme (Project):R - Vorhaben Weiterentwicklung Robotik - Mechatronik und Dynamik
Location: Oberpfaffenhofen
Institutes and Institutions:Institute of Robotics and Mechatronics (since 2013) > Mechatronic Components and Systems
Deposited By: Leyendecker, Patrick
Deposited On:08 Dec 2014 14:46
Last Modified:08 Dec 2014 14:46

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