title: Reflectometry using longitudinal, shear and Rayleigh waves.
abstract: A new technique of reflectometry using longitudinal, shear and Rayleigh waves is presented. Reflection coefficient as a function of angle incidence of an ultrasound beam with a finite beamwidth was measured for water-aluminum, water-brass, and water-glass interfaces. The measured values have matched very favorably with the results of numerical calculations based on the angular spectrum of waves method. It has been shown that the speeds of longitudinal, shear and Rayleigh waves of a solid can be determined very accurately by measuring a spectacularly reflected signal versus angle of incidence.
authors.affiliation: Institute of Acoustics and State Key Laboratory of Modern Acoustics, Nanjing University, People's Republic of China.
authors.forename: W
authors.initials: W
authors.lastname: Chen
authors.forename: J
authors.initials: J
authors.lastname: Wu
mesh_terms: D000497:Alloys; D000535:Aluminum; D003300:Copper; D005898:Glass; D014465:Ultrasonics; D014867:Water; D015032:Zinc
chemical_list: D000497:Alloys; D014867:Water; C048399:brass; D003300:Copper; D000535:Aluminum; D015032:Zinc