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Sensor Technologies for Civil Infrastructures, Volume 1 by Hoon Sohn, Jerome P. Lynch, Ming L. Wang

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5

Fiber optic sensors for assessing and monitoring civil infrastructures

K.J. Peters,    North Carolina State University, USA

D. Inaudi,    SMARTEC S.A. Switzerland

Abstract:

In this chapter we present a technical description of fiber optic sensors including point, multiplexed, long-base, and distributed sensors, and their advantages. In particular we highlight the sensing capabilities that have no parallel in conventional sensors. To provide a background, this chapter first presents the properties of optical fibers and internal parameters that can be exploited to sense changes in their surroundings such as strain and temperature. Practical considerations in the deployment of such sensors in structural applications are also listed. Next, the sensing ...

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