Vibration Measurement Based on the Local Maximum Detection Algorithm for Laser Self-Mixing Interferometry

A novel laser self-mixing interferometry vibration measurement algorithm based on the local maximum detection technique is proposed, that can reconstruct micro vibrations rapidly and easily. In this article, the principles of the local maximum detection algorithm are analyzed in detail, and the proc...

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Bibliographic Details
Published inIEEE access Vol. 8; pp. 63462 - 63469
Main Authors Zhang, Zihua, Jiang, Chunlei, Shen, Liqun, Li, Chengwei, Huang, Zhen
Format Journal Article
LanguageEnglish
Published Piscataway IEEE 2020
The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subjects
Algorithms
Interference
Interferometry
Laser theory
local maximum detection
Measurement by laser beam
Optical feedback
self-mixing interferometry
Solids
Vibration measurement
Vibrations
Window functions
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Summary:A novel laser self-mixing interferometry vibration measurement algorithm based on the local maximum detection technique is proposed, that can reconstruct micro vibrations rapidly and easily. In this article, the principles of the local maximum detection algorithm are analyzed in detail, and the process of solving the window function is emphasized. The major advantage of the method is that it does not involve any complicated calculations and removes the need for optical/electromechanical components. The validity of the presented method is confirmed by means of simulated signals and demonstrated via several experiments for harmonic and aleatory motion.
ISSN:2169-3536
2169-3536
DOI:10.1109/ACCESS.2020.2984282