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Sensing & Measurement

Hoon Sohn: Noncontact Laser Sensing Technology for Structural Health Monitoring and Nondestructive Testing

A plenary talk from SPIE Smart Structures/NDE 2014

31 March 2014, SPIE Newsroom. DOI: 10.1117/2.3201403.25

Noncontact sensing techniques is gaining prominence for structural health monitoring (SHM) and nondestructive testing (NDT) due to (1) their noncontact and nonintrusive natures, (2) their spatial resolution much higher than conventional discrete sensors can achieve, (3) their less dependency on baseline data obtained from the pristine condition of a target structure (reference-free diagnosis), (4) cost and labor reduction in sensor installation and maintenance. In this talk, a suite of noncontact sensing techniques particularly based on laser technology is presented for SHM and NDT of aircraft, wind turbine blades, high-speed trains, nuclear power plants, bridges, automobile manufacturing facilities and semiconductors.

Hoon Sohn earned his B.S. and M.S. degrees from Seoul National University, Ph.D. from Stanford University, and is now Chaired Professor at KAIST. He received the 2011 SHM Person of the Year Award at the International Workshop on SHM, and the 2008 Presidential Young Scientist Award in Korea. He was also among the 100 most promising individuals in Korea selected by Donga Daily Newspaper in 2012.