The novelty of Self-mixing interferometry is represented by the combination of high accuracy and contactless operation with compact, very-low-cost and user-friendly setup. This paper introduces state of the art techniques to monitor vibrations focusing on a novel digital feedback vibrometer. It exploits a control loop to delete interferometric signal distortion and improve measurement accuracy. A digital implementation is proposed to enhance system performances through a real-time elaboration.
Self-mixing digital closed-loop vibrometer for high accuracy vibration measurements
MAGNANI, ALESSANDRO;MELCHIONNI, DARIO;PESATORI, ALESSANDRO;NORGIA, MICHELE
2016-01-01
Abstract
The novelty of Self-mixing interferometry is represented by the combination of high accuracy and contactless operation with compact, very-low-cost and user-friendly setup. This paper introduces state of the art techniques to monitor vibrations focusing on a novel digital feedback vibrometer. It exploits a control loop to delete interferometric signal distortion and improve measurement accuracy. A digital implementation is proposed to enhance system performances through a real-time elaboration.File in questo prodotto:
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2015 PageProof_OPTICS_20738.pdf
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Descrizione: post print optics communication
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