'Listening' to signals traveling through bridges for diagnosing damage

A passive and noninvasive approach has been developed to “listen” to a collection of relevant signals from bridges and other mechanical structures to diagnose changes or damage.

from Engineering and Construction News – ScienceDaily https://www.sciencedaily.com/releases/2016/11/161130090220.htm

via Tumblr http://ndbasilica.tumblr.com/post/153955166104