A Personal View About Structural Health Monitoring All generalizations are false All generalizations are false, including this one. Mark Twain Target: DAMAGE Non-redundant Redundant -Indicators: Displacement Frequency Deformation Discontinuities Temperature m k Mean Drift Ratio [%] Time [s] -Indicators: Displacement Frequency Deformation Discontinuities Temperature Vs Vo 10 k gage S. L. Wood and D. P. Neikirk, Develpoment of a passive sensor to detect cracks in welded steel construction, US-Japan Joint Workshop and Third Grantees Meeting, K. Morita and K. Noguchi, Crack detection sensor using rfid-tag and electrically conductive paint, AIJ Journal of Technology and Design, no. 24, 2006.