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Real-time algorithm for versatile displacement sensors based on self-mixing interferometry

Antonio Luna Arriaga 1 Francis Bony 1 Thierry Bosch 1 
1 LAAS-OSE - Équipe Optoélectronique pour les Systèmes Embarqués
LAAS - Laboratoire d'analyse et d'architecture des systèmes
Abstract : This paper presents a general displacement reconstruction algorithm for sensors based on self-mixing (SM) interferometry suitable to work at different optical feedback conditions. The approach relies on a robust phase observation through analytic signals for the fringe detection stage, while the motion of the pointed target is retrieved by a self-adapting filter in a piece-wise basis. The implementation for real-time calculations demonstrates the feasibility of robust SM sensors for different usage conditions without the need of modifying the base device configuration.
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Submitted on : Tuesday, November 10, 2015 - 1:37:03 PM
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Antonio Luna Arriaga, Francis Bony, Thierry Bosch. Real-time algorithm for versatile displacement sensors based on self-mixing interferometry. IEEE Sensors Journal, Institute of Electrical and Electronics Engineers, 2016, 16 (1), pp.195-202. ⟨10.1109/JSEN.2015.2478755⟩. ⟨hal-01226909⟩



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