Share Email Print
cover

Proceedings Paper

Strain-rate sensor based on in-fiber Doppler velocimetry
Author(s): Yu-Lung Lo; James S. Sirkis
Format Member Price Non-Member Price
PDF $14.40 $18.00

Paper Abstract

An optical fiber strain-rate sensor based on in-line Doppler velocimetry is developed using a 3 X 3 coupler with a large path imbalance Mach-Zehnder interferometer for passive demodulation of Doppler wavelength shifts. A model is developed that relates the strain-rate in an optical fiber to the corresponding Doppler wavelength shifts. The strain-rate obtained by differentiating strain from a Michelson strain sensor mounted on the PZT cylinder shows good agreement with the strain-rate directly obtained from the Doppler-based strain-rate sensor.

Paper Details

Date Published: 20 April 1995
PDF: 10 pages
Proc. SPIE 2444, Smart Structures and Materials 1995: Smart Sensing, Processing, and Instrumentation, (20 April 1995); doi: 10.1117/12.207686
Show Author Affiliations
Yu-Lung Lo, Univ. of Maryland/College Park (United States)
James S. Sirkis, Univ. of Maryland/College Park (United States)


Published in SPIE Proceedings Vol. 2444:
Smart Structures and Materials 1995: Smart Sensing, Processing, and Instrumentation
William B. Spillman, Editor(s)

© SPIE. Terms of Use
Back to Top