Amplitude modulation fiber optic vibrometer with large bandwidth and nanometric accuracy

R. Dib; Yasser Alayli; P. Wagstaff; J. C. Henrio

doi:10.1117/12.386732

22 May 2000 Amplitude modulation fiber optic vibrometer with large bandwidth and nanometric accuracy

R. Dib, Yasser Alayli, P. Wagstaff, J. C. Henrio

Proceedings Volume 4072, Fourth International Conference on Vibration Measurements by Laser Techniques: Advances and Applications; (2000) https://doi.org/10.1117/12.386732
Event: 4th International Conference on Vibration Measurement by Laser Techniques, 2000, Ancona, Italy

Abstract

The use of non contact vibration measurements with laser based optical devices is a relatively recent and fairly expensive technique and the more extensive use of this type of measurement is often limited by the high cost of these instruments. Laser vibrometer measurements are therefore generally restricted to single or two point simultaneous measurements or a series of reference single point measurements as the beam is displaced from one point to another. Many optical methods based on interferometry are also difficult to use in industrial environments. To help to resolve some of these problems a simple optical device based on the use of fiber-optics and luminous intensity modulation is presented. The accuracy of the optical vibrometer is not influenced by the industrial environment. The behavior of the fiber optic vibrometer is compared with the response of an accelerometer. This comparison shows that the fiber optic probe has a linear response over a large bandwidth.

Citation Download Citation

R. Dib, Yasser Alayli, P. Wagstaff, and J. C. Henrio "Amplitude modulation fiber optic vibrometer with large bandwidth and nanometric accuracy", Proc. SPIE 4072, Fourth International Conference on Vibration Measurements by Laser Techniques: Advances and Applications, (22 May 2000); https://doi.org/10.1117/12.386732

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available