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Title:

Novel Optical Fiber Sensors for Monitoring Bridge Structural Integrity
Cover of Novel Optical Fiber Sensors for Monitoring Bridge Structural Integrity

Accession Number:

01133715

Record Type:

Monograph

Availability:

National Technical Information Service

5301 Shawnee Road
Alexandria, VA 22312 United States

Abstract:

This Innovations Deserving Exploratory Analysis (IDEA) project successfully developed a novel sensor system based on innovative integration of fiber optics and Moire phenomena for measuring dynamic response of highway bridges to assess their structural integrity. The 18-month project was conducted in two phases. Work in the initial phase focused on the development of a prototype sensor system. Technical specifications of the proposed fiber optic accelerometer system were established, based on which a conceptual design of the system was developed. In the second phase, the system was extensively tested under a variety of dynamic excitations including earthquake inputs on seismic shaking tables. Furthermore, the sensors were tested at two highway bridge sites in California under traffic excitations, in collaboration with Caltrans. These tests demonstrated superior performance of the new fiber optic accelerometer system over its conventional electrical counterparts. Newport Sensors, Inc., has started to develop the fiber optic accelerometer system into commercial products.

Supplemental Notes:

This NCHRP-IDEA investigation was conducted by Newport Sensors, Inc., Irvine, California. Distribution, posting, or copying of this PDF is strictly prohibited without written permission of the Transportation Research Board of the National Academy of Sciences. Unless otherwise indicated, all materials in this PDF are copyrighted by the National Academy of Sciences. Copyright © National Academy of Sciences. All rights reserved

Report/Paper Numbers:

Highway IDEA Project 124

Language:

English

Authors:

Feng, Maria Q

Pagination:

51p

Publication Date:

2009-3

Serial:

NCHRP-IDEA Program Project Final Report

Publisher: Transportation Research Board

Edition:

Final Report

Media Type:

Print

Features:

Figures; Photos; Tables

Uncontrolled Terms:

Structural integrity

Subject Areas:

Bridges and other structures; Highways; Maintenance and Preservation; I24: Design of Bridges and Retaining Walls; I60: Maintenance

Files:

TRIS, TRB

Created Date:

Jul 10 2009 9:52AM