A self-mixing laser sensor design with an extended kalman filter for optimal online structure analysis and damping evaluation

We have developed a new algorithm based on the extended Kalman filter, in order to improve the resolution of an optical displacement sensor. This new non contact sensor which provides vibration measurement with a very good accuracy might be used for online quality control by measuring the damping of...

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Bibliographic Details
Published inIEEE/ASME transactions on mechatronics Vol. 1; no. 3; pp. 387 - 394
Main Authors Bès, Caroline, Belloeil, Victorien, Plantier, Guy, Gourinat, Yves, Bosch, Thierry
Format Journal Article
LanguageEnglish
Published Institute of Electrical and Electronics Engineers 01.06.2007
Subjects
Engineering Sciences
Micro and nanotechnologies
Microelectronics
Optical interferometry
Vibration measurement
Displacement sensors
Structure analysis
Extended Kalman filter
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ISSN1083-4435
DOI10.1109/TMECH.2007.897287

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Summary:We have developed a new algorithm based on the extended Kalman filter, in order to improve the resolution of an optical displacement sensor. This new non contact sensor which provides vibration measurement with a very good accuracy might be used for online quality control by measuring the damping of excited mechanical structure. This self-mixing sensor subject to weak feedback has been tested in comparison with a commercial vibrometer, to measure the frequency response function of a plate with a passive damping to be characterized, in order to show the efficiency of a damping treatment.
ISSN:1083-4435
DOI:10.1109/TMECH.2007.897287