Optics: measuring and testing – By light interference – For dimensional measurement
Reexamination Certificate
2011-06-21
2011-06-21
Chowdhury, Tarifur (Department: 2886)
Optics: measuring and testing
By light interference
For dimensional measurement
Reexamination Certificate
active
07965394
ABSTRACT:
A method and apparatus for identifying dynamic characteristics of a vibratory object is provided in the present invention, in which a series of dynamic interference images of the vibratory object is acquired through a frequency sweeping procedure and a two-dimensional image scanning procedure. Thereafter, the acquired images are processed for obtaining the corresponding differential fringe density index by signal processing technique of band-pass filtering method so as to further identify the dynamic characteristics of the vibratory object.
REFERENCES:
patent: 5841030 (1998-11-01), Honsberg et al.
patent: 6219145 (2001-04-01), Gutierrez et al.
patent: 7782466 (2010-08-01), Chen et al.
patent: 2005/0007599 (2005-01-01), deGroot
patent: 2005/0157306 (2005-07-01), Schmit et al.
patent: 2005/0279172 (2005-12-01), Schreier et al.
Chang Chung-Chu
Chen Jin-Liang
Chen Liang-Chia
Huang Yao-Ting
Chowdhury Tarifur
Hansen Jonathan M
Industrial Technology Research Institute
King Justin
National Taipei University of Technology
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