Simultaneous measurement of surface tangential velocity and normal displacement; advantages of a new fiber optic probe

Osvaldo Massi

doi:10.1117/12.185345

8 September 1994 Simultaneous measurement of surface tangential velocity and normal displacement; advantages of a new fiber optic probe

Osvaldo Massi

Author Affiliations +

Proceedings Volume 2358, First International Conference on Vibration Measurements by Laser Techniques: Advances and Applications; (1994) https://doi.org/10.1117/12.185345
Event: Vibration Measurements by Laser Techniques: First International Conference, 1994, Ancona, Italy

Abstract

This paper describes a noncontact fiber optic probe for measuring tangential velocity of a surface and its normal displacement. The developed sensor is based on the intensity modulation of back-scattered light achieved by interaction of collimated laser beams with the moving surface; the probe has been realized using optical fibers and micro-lenses in order to miniaturize the system. Both the measurements of velocity and displacement are simultaneously obtained by using cross-correlation techniques. The device is tested on a specially prepared belt drive and its performance is compared with two different commercial measurement systems.

Citation Download Citation

Osvaldo Massi "Simultaneous measurement of surface tangential velocity and normal displacement; advantages of a new fiber optic probe", Proc. SPIE 2358, First International Conference on Vibration Measurements by Laser Techniques: Advances and Applications, (8 September 1994); https://doi.org/10.1117/12.185345

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