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MDPI, Sensors, 5(9), p. 3527-3548, 2009

DOI: 10.3390/s90503527

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Laser-Self-Mixing Interferometry for Mechatronics Applications

Journal article published in 2009 by Simona Ottonelli, Maurizio Dabbicco, Francesco De Lucia, Michela di Vietro, M. Di Vietro, Gaetano Scamarcio ORCID
This paper is made freely available by the publisher.
This paper is made freely available by the publisher.

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Abstract

We report on the development of an all-interferometric optomechatronic sensor for the detection of multi-degrees-of-freedom displacements of a remote target. The prototype system exploits the self-mixing technique and consists only of a laser head, equipped with six laser sources, and a suitably designed reflective target. The feasibility of the system was validated experimentally for both single or multi-degrees-of-freedom measurements, thus demonstrating a simple and inexpensive alternative to costly and bulky existing systems.