Polymer composite material characterisation using a laser/air-transducer system

Meyer, 1985 Hull, 1981 1992 Blake, 1990, Test Methods, Vol. VI, 57 Prakash, 1980, Composites, 11, 217, 10.1016/0010-4361(80)90428-0 Steiner, 1992, 72 Monchalin, 1988, Vol. 7B, 1607 Frost, 1979, Vol. XIV, 179 Sachse, 1979, Vol. XIV, 277 Calder, 1980, Mat. Eval., 38, 86 White, 1963, J. Appl. Phys., 34, 3559, 10.1063/1.1729258 Hutchins, 1988, Vol. XVIII, 21 Scruby, 1990 Kuhl, 1954, Acustica, 4, 519 Suzuki, 1989, IEEE Trans. Ultrason. Ferroelec. Freq. Contr., UFFC-36, 620, 10.1109/58.39112 Carr, 1993, Ultrasonics, 31, 13, 10.1016/0041-624X(93)90028-X Schindel, 1995, IEEE Trans. Ultrason. Ferroelec. Freq. Contr., UFFC-42, 42, 10.1109/58.368314 Wright, 1994, J. Acoust. Soc. Am., 95, 2567, 10.1121/1.409826 Hietanen, 1993, Meas. Sci. Techn., 4, 1138, 10.1088/0957-0233/4/10/018 Carr, 1992, Nondest. Test. Eval., 10, 3, 10.1080/10589759208952778 Platte, 1987, Ferroelectrics, 75, 327, 10.1080/00150198708008983 Ohigashi, 1984, Ferroelectrics, 60, 263, 10.1080/00150198408017527 Lynnworth, 1965, IEEE Trans. Sonics Ultrason., SU-13, 37, 10.1109/T-SU.1965.29359 Gururaja, 1985, IEEE Trans. Sonics. Ultrason., SU-32, 481, 10.1109/T-SU.1985.31623 Gururaja, 1985, IEEE Trans. Sonics Ultrason., SU-32, 499, 10.1109/T-SU.1985.31624 Hayward, 1990, J. Acoust. Soc. Am., 88, 599, 10.1121/1.399763 Hossack, 1991, IEEE Trans. Ultrason. Ferroelec. Freq. Contr., UFFC-38, 618, 10.1109/58.108860 Hutchins, 1994, IEEE Trans. Ultrason. Ferroelec. Freq. Contr., UFFC-41, 796, 10.1109/58.330260 G. Hayward and A. Gachagan, An evaluation of 1–3 connectivity composite transducers for air-coupled ultrasonic applications, submitted for publication to J. Acoust. Soc. Am. G. Hayward and J. Bennett, Assessing the influence of pillar aspect ratio on the behaviour of 1–3 connectivity composite transducers, submitted for publication to J. Acoust. Soc. Am. Viktorov, 1967 Kak, 1988 Hutchins, 1993, Ultrasonics, 31, 97, 10.1016/0041-624X(93)90039-3 Jansen, 1994, Ultrasonics, 32, 83, 10.1016/0041-624X(94)90015-9