title: A noncontact method for detecting acoustic emission using a microwave Doppler radar motion detector.
abstract: A noncontact method for detecting acoustic emission was developed, using a microwave Doppler radar detector and an active band-pass filter. A theoretical model was developed and a prototype sensor was built and tested. The prototype responds to acoustic emissions (AE), from pencil lead break tests, at ranges up to 1.5 feet.
authors.forename: Gregory C
authors.initials: GC
authors.lastname: Smith