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Proceedings Paper

Gaussian beam displacement sensor for monitoring interstory drift in smart buildings
Author(s): Kim D. Bennett; C. W. Hoover III; Ru Z. Chen; M. D. Plone
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Paper Abstract

A method for measuring lateral displacements in structures is proposed based on the motion of a Gaussian optical beam. A sensor is designed and constructed using the free space output of a single mode optical fiber, which well approximates the Gaussian intensity distribution, and is tested in both quasi-static and dynamic displacement modes. Good agreement between the experimental data and the predicted output is obtained for small displacements of the size expected in real buildings. It is envisioned that this sensor could serve as the input to an active control system used to stabilize smart buildings experiencing earthquake and wind loads.

Paper Details

Date Published: 1 May 1994
PDF: 10 pages
Proc. SPIE 2191, Smart Structures and Materials 1994: Smart Sensing, Processing, and Instrumentation, (1 May 1994); doi: 10.1117/12.173974
Show Author Affiliations
Kim D. Bennett, Lafayette College (United States)
C. W. Hoover III, Lafayette College (United States)
Ru Z. Chen, Stanford Univ. (United States)
M. D. Plone, Lafayette College (United States)

Published in SPIE Proceedings Vol. 2191:
Smart Structures and Materials 1994: Smart Sensing, Processing, and Instrumentation
James S. Sirkis, Editor(s)

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