Abstract
This work describes the development of an optical sensor for measurement of vibration without contact. The realized vibrometer is based on real-time digital elaboration of the signal obtained by a self-mixing interferometer, with an embedded autofocus system. Two different algorithms are implemented, for the continuous working on diffusive surfaces, with different levels of optical reflectivity. Thanks to the autofocus and the digital processing, the proposed sensor is easy to use and requires no assistance of a skilled operator.
© 2012 Optical Society of America
Full Article | PDF ArticleMore Like This
Silvano Donati, Michele Norgia, and Guido Giuliani
Appl. Opt. 45(28) 7264-7268 (2006)
Dario Melchionni, Alessandro Magnani, Alessandro Pesatori, and Michele Norgia
Appl. Opt. 54(32) 9637-9643 (2015)
Yanan Zhi, Yu Zou, Kehan Tian, and JianFeng Sun
Appl. Opt. 62(2) 298-313 (2023)