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

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12

Laser-based sensing for assessing and monitoring civil infrastructures

T.-Y. Yu,    University of Massachusetts Lowell, USA

Abstract:

This chapter provides an overview of current laser-based sensing techniques and their applications in science and engineering. The chapter first introduces the principles of lasers, followed by a technical description of several laser-based sensing techniques including laser interferometry or electronic speckle pattern interferometry (ESPI), digital shearography, scanning photogrammetry, laser Doppler vibrometry (LDV), and laser-ultrasound. Other laser-related techniques are also discussed, with an emphasis on civil infrastructure applications. The chapter then addresses the safety issue associated with the ...

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