Pic 2 (IMAGE) National Research Council of Science & Technology Caption Laser measurement for real-time response monitoring of a lead-free guided wave sensor attached to the surface of structure Credit Korea Research Institute of Standards and Science (KRISS) Usage Restrictions The sources of photos and research results from KRISS must be specified. License Original content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.