Title :
Novel displacement reconstruction method for vibration measurements
Author :
Magnani, Alessandro ; Pesatori, Alessandro ; Norgia, Michele
Author_Institution :
Dipt. di Elettron. e Inf., Politec. di Milano, Milan, Italy
Abstract :
A new elaboration technique for a self-mixing interferometer is described. The basic principle consists in measuring the duty-cycle of each interferometric fringe, in order to find the target direction, even in the case of low optical back-reflection regime. By means of this algorithm a real-time sensor has been realized, able to measure vibrations and displacements over non cooperative targets.
Keywords :
displacement measurement; light interferometers; optical sensors; vibration measurement; displacement reconstruction method; elaboration technique; optical back-reflection; real-time sensor; self-mixing interferometer; vibration measurement; Adaptive optics; Measurement by laser beam; Optical interferometry; Optical reflection; Optical sensors; Optical variables measurement; Semiconductor lasers;
Conference_Titel :
Instrumentation and Measurement Technology Conference (I2MTC), 2011 IEEE
Conference_Location :
Binjiang
Print_ISBN :
978-1-4244-7933-7
DOI :
10.1109/IMTC.2011.5944148
