title: Acoustic coupling from a focused transducer to a flat plate and back to the transducer.
abstract: An approximate solution for the acoustic coupling factor (the diffraction correction function) from a focused transducer to a flat plate and back to the transducer is provided. This function is useful for system calibrations where a pulse-echo system or transmit-receive system is used. Numerical solutions are provided for the important case where the flat plate is placed near the focal plane of the transducer. The solution for a flat disk transducer is obtained as a limiting case. Experimental evidence for a focused transducer is provided.
authors.affiliation: Rochester Center for Biomedical Ultrasound, University of Rochester, New York 14627.
authors.forename: X
authors.initials: X
authors.lastname: Chen
authors.forename: K Q
authors.initials: KQ
authors.lastname: Schwarz
authors.forename: K J
authors.initials: KJ
authors.lastname: Parker
mesh_terms: D000161:Acoustic Stimulation; D000162:Acoustics; D004867:Equipment Design; D008962:Models, Theoretical; D014159:Transducers