As is well known, acoustic emission monitoring is a nondestructive means of evaluation which passively "listens" to sound waves generated by stresses within a material.

The out-of-plane displacements created by the sound waves (typically on the order of picometers or smaller) are detected and converted to a voltage by piezoelectric transducers; computerized equipment is used to measure and record the resulting voltage vs. time information.

The opinions presented on this web site represent those of Dr. Hamstad. They may or may not represent those of his collaborators. The information on this web site in not to be taken as engineering and/or consulting advice. Such advice can only be undertaken for specific cases.


Dr. Hamstad would be interested in contacts regarding specific funded (through the University of Denver) acoustic emission research projects, and where appropriate specific paid consultation on acoustic emission applications.

You may contact Dr. Hamstad at his email address

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