Title :
Novel Measurement System Data Handling for the Extraction of Weak Signals in Optical Vibrometry
Author :
Norgia, M. ; Svelto, C.
Author_Institution :
Politecnico di Milano, Milan
Abstract :
A new method for accurate reconstruction of the displacement information from an interferometric signal is described. The method allows to calculate the correct target movement also for extremely weak signal to noise ratio and in the presence of disturbances. The proposed method is experimentally validated for a self-mixing laser vibrometer, developed for the characterization of an ultrasound solder.
Keywords :
light interferometry; vibration measurement; displacement information reconstruction; interferometric signal; measurement system data handling; optical vibrometry; self-mixing laser vibrometer; ultrasound solder; weak signals extraction; Data handling; Data mining; Laser feedback; Optical distortion; Optical feedback; Optical interferometry; Optical refraction; Optical sensors; Optical signal processing; Surface emitting lasers; measurement system data handling; optical interferometry; optical measurements; signal detection; signal reconstruction;
Conference_Titel :
Instrumentation and Measurement Technology Conference Proceedings, 2007. IMTC 2007. IEEE
Conference_Location :
Warsaw
Print_ISBN :
1-4244-0588-2
DOI :
10.1109/IMTC.2007.379298
