Share Email Print
cover

Proceedings Paper

Bragg cell and rotating grating frequency shifting in laser vibrometer: a metrological and operating comparison
Author(s): Giulio D'Emilia; Francesco Iaconis; Enrico Nino
Format Member Price Non-Member Price
PDF $14.40 $18.00

Paper Abstract

An experimental comparison has been carried out between two laser Doppler vibrometers, different as for frequency shift generation between measuring and reference beam of the interferometer. In particular, two systems, based either on a Bragg cell or on a rotating diffraction grating for frequency shifting, have been compared, with reference to both metrological and operating behavior. Based on the analysis of experimental information, a quantitative evaluation has been carried out of the effect on either optical configuration of the most typical operative parameters to be taken into account in laser Doppler vibrometry, in order to define the best optical lay-out and configuration depending on the specific industrial application.

Paper Details

Date Published: 23 August 1996
PDF: 7 pages
Proc. SPIE 2868, Second International Conference on Vibration Measurements by Laser Techniques: Advances and Applications, (23 August 1996); doi: 10.1117/12.248625
Show Author Affiliations
Giulio D'Emilia, Univ. degli Studi di L'Aquila (Italy)
Francesco Iaconis, Univ. degli Studi di L'Aquila (Italy)
Enrico Nino, Univ. degli Studi della Basilicata (Italy)


Published in SPIE Proceedings Vol. 2868:
Second International Conference on Vibration Measurements by Laser Techniques: Advances and Applications
Enrico Primo Tomasini, Editor(s)

© SPIE. Terms of Use
Back to Top