3Gururaja T T. Piezoelectric composite materials for ultrasonic transducer applications. Ph.D. thesis, The Pennsylvania State University, University Park, PA, 1984,5.
4Hayward G,Hossack J. Computer models for analysis and design of 1-3 compositetransducers. Ultrasonic International 89 Conference Proceedings : 532-535.
5Smiths W A, The role of piezocomposites in ultrasonic transducers. IEEEUltrasonics Symposium Proceedings: 755-766.
6Hashimoto K Y, Yamaguchi M. Elastic, piezoelectric and dielectric properties of composite materials. 1986 IEEE Ultrasonic Symposium Proceedings : 697-702.
7Oakley C G. Analysis and development of piezoelectric composites for medical ultrasound transducer applications. Ph.D. thesis, The Pennsylvania State University, University Park ,PA, 1991,5.
8Krimholtz, Leedom R D, Matthaei G. New equivalent circuits for elementary piezoelectric transducers. Electronics Letters, vol. 6 (June 1970):398-399.
9ANSI/IEEE Std. 176-1978: IEEE Standard on Piezoelectricity.
10Dub6 N, Lamarre A, Mainguy F. Dynamic Depth Focusing Board for Nondestructive Testing: Characterization and Applications. Probes and Ultrasonic Field Formula 161.
