title: Air-coupled piezoelectric detection of laser-generated ultrasound.
abstract: A pulsed laser has been used to generate ultrasonic transients in samples of metal and fiber-reinforced polymer composite material. These have been detected using an air-coupled piezoelectric transducer. It is demonstrated that such a transduction system can be used for longitudinal waves in bulk material, Rayleigh waves at solid surfaces and Lamb waves in thin plates.
authors.affiliation: Dept. of Eng., Warwick Univ., Coventry.
authors.forename: D A
authors.initials: DA
authors.lastname: Hutchins
authors.forename: W D
authors.initials: WD
authors.lastname: Wright
authors.forename: G
authors.initials: G
authors.lastname: Hayward
authors.forename: A
authors.initials: A
authors.lastname: Gachagan