Sensors 2009, 9(5), 3527-3548; https://doi.org/10.3390/s90503527
Laser‐Self‐Mixing Interferometry for Mechatronics Applications
Dipartimento Interateneo di Fisica “M. Merlin”, Università di Bari, and CNR-INFM Laboratorio Regionale “LIT3”, Via Amendola 173, I-70126, Bari, Italy
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Received: 16 March 2009 / Revised: 21 April 2009 / Accepted: 6 May 2009 / Published: 12 May 2009
(This article belongs to the Special Issue State-of-the-Art Sensors Technology in Italy)
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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. View Full-TextKeywords:
physical sensors; displacement measurement; self-mixing; interferometry; mechatronics; semiconductor laser; six degrees-of-freedom
This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).
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MDPI and ACS Style
Ottonelli, S.; Dabbicco, M.; De Lucia, F.; Di Vietro, M.; Scamarcio, G. Laser‐Self‐Mixing Interferometry for Mechatronics Applications. Sensors 2009, 9, 3527-3548.