Fundamentals of Ultrasonic Phased Arrays (eBook)

Les Schmerr received a B.S. degree in Aeronautics and Astronautics from the Massachusetts Institute of Technology in 1965 and a Ph.D. in Mechanics from the Illinois Institute of Technology in 1970. Since 1969 he has been at Iowa State University where he is currently Professor of Aerospace Engineering and Associate Director of the Center for Nondestructive Evaluation. He is also the Permanent Secretary of the World Federation of NDE Centers. His research interests include ultrasonics, elastic wave propagation and scattering, and artificial intelligence. He has developed and taught Ultrasonics and Nondestructive Evaluation courses at both the undergraduate and graduate level.  He is the author of the book Fundamental of Ultrasonic Nondestructive Evaluation - A Modeling Approach which was published by Plenum Press in 1998 and the book Ultrasonic Nondestructive Evaluations Systems - Models and Measurements which was published by Springer in 2007.  He is a member of IEEE, ASME, ASNT and AIAA.

Introduction.- Acoustic Field of a 1-D Array Element.- Single Element Transducer Models.- Phased Array Modeling (2-D).- Time Delay Laws (2-D).- Acoustic Field of a 2-D Array.- Phased Array Modeling (3-D).- Time Delay Laws (3-D).- Linear System Models of Phased Arrays.- Phased Array System Functions.- Measurement Models for Ultrasonic Arrays.- Imaging with Phased Arrays – An Overview.- Imaging Measurement Models.- Element Boundary Conditions and Other Modeling Issues.- Appendix A The Beylkin Determinant.- Appendix B Angle-Area Ratios.- Appendix C MATLAB Functions and Scripts.