Acoustic Emission Methods for Flaw Detection in Steel in Highway Bridges, Phase I

摘要

A simple self-contained, battery operated AE monitor concept has been identified, fabricated in breadboard form, evaluated in the laboratory and the field, and demonstrated to be a practical concept for long term monitoring for AE from active flaws on an inservice highway bridge. The unit is capable of monitoring a specific area - flawed or suspect - continuously and unattended. The unit is applicable to monitoring both steel and prestressed concrete bridge members.