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Authors: Zeina El Rawashdeh ; Philippe Revel ; Christine Prelle and Frédéric Lamarque

Affiliation: Université de Technologie de Compiègne, France

Keyword(s): Fiber-optic Sensor, Geometric Modelling, Grating Geometric Design, Diamond Tool Fabrication, Long-range Displacement.

Abstract: This paper presents the initial design of a new fiber-optic displacement sensor; it is used to measure the linear displacement of an actuator performing a helical movement. This sensor consists of a set of assembled cones, which constitute a reflective grating, and two fiber-optic probes. It is characterised by its ability to measure the displacement along a millimetric range, with a high sub-micrometric resolution. In this work, the geometric model of the sensor is presented as well in terms of single probe response in front of a curved reflective surface as in terms of grating shape which authorizes the measurement principle. This grating design makes the displacement measurement possible due to the overlap of the two probes simulated output signals. The single probe measurement in front of a curved reflective surface demonstrates a good agreement with simulation results. A prototype of the cones-assembled grating has been fabricated using a high precision turning machine and a sin gle-crystal diamond tool on an aluminium alloy; the geometric parameters of the fabricated grating were evaluated with the help of a NanofocusTM µscan optical profilometer. The agreement between the simulated geometric parameters and the real parameters is very good. (More)

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Paper citation in several formats:
El Rawashdeh, Z.; Revel, P.; Prelle, C. and Lamarque, F. (2015). Cones-assembled Grating for Long-range Fiber-optic Linear Displacement Sensor. In Proceedings of the 3rd International Conference on Photonics, Optics and Laser Technology (PHOTOPTICS 2015) - Volume 1: OSENS; ISBN 978-989-758-092-5; ISSN 2184-4364, SciTePress, pages 147-155. DOI: 10.5220/0005432001470155

@conference{osens15,
author={Zeina {El Rawashdeh}. and Philippe Revel. and Christine Prelle. and Frédéric Lamarque.},
title={Cones-assembled Grating for Long-range Fiber-optic Linear Displacement Sensor},
booktitle={Proceedings of the 3rd International Conference on Photonics, Optics and Laser Technology (PHOTOPTICS 2015) - Volume 1: OSENS},
year={2015},
pages={147-155},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0005432001470155},
isbn={978-989-758-092-5},
issn={2184-4364},
}

TY - CONF

JO - Proceedings of the 3rd International Conference on Photonics, Optics and Laser Technology (PHOTOPTICS 2015) - Volume 1: OSENS
TI - Cones-assembled Grating for Long-range Fiber-optic Linear Displacement Sensor
SN - 978-989-758-092-5
IS - 2184-4364
AU - El Rawashdeh, Z.
AU - Revel, P.
AU - Prelle, C.
AU - Lamarque, F.
PY - 2015
SP - 147
EP - 155
DO - 10.5220/0005432001470155
PB - SciTePress

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