Noncontact Driving System Using Induction-Based Method and Integrated Piezoelectric Ultrasonic Transducers


Integrated Ultrasonic Transducers (IUTs) have been developed for high-temperature nondestructive evaluation applications. In many field, it would be helpful if a pipe covered by a protective layer of about 10 cm thickness, which is under operation at several hundred Celsius, could be inspected from above the protective layer by an IUT. As a first step toward achieving the inspection of such a pipeline, an induction-based method using coils is presented together with IUTs. This study focuses on the effects of the separation distance (liftoff) between the coils on the ultrasonic signal strength and bandwidth of the IUTs. Ultrasonic signals were generated and received by the IUTs on a steel plate with a sufficient strength for thickness measurements when the liftoff was 20 cm. It was also shown that a ferrite disc together with the coils enhanced the received signal strength even when the liftoff was over 10 cm.

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R. Murayama, M. Kobayashi, K. Wu and C. Jen, "Noncontact Driving System Using Induction-Based Method and Integrated Piezoelectric Ultrasonic Transducers," Journal of Sensor Technology, Vol. 2 No. 2, 2012, pp. 60-67. doi: 10.4236/jst.2012.22009.

Conflicts of Interest

The authors declare no conflicts of interest.


[1] D. E. Bray and R. K. Stanley, “Nondestructive Evaluation,” CRC Press, New York, 1997.
[2] B. Raj, V. Rajendran and P. Palanichamy, “Science and Technology of Ultrasonics,” Alpha Science International Ltd., Oxford, 2004.
[3] A. McNab, K. J. Kirk and A. Cochran, “Ultrasonic Transducers for High Temperature Applications,” IEEE Proceedings of Science, Measurement and Technology, Vol. 145, No. 5, 1998, pp. 229-236. doi:10.1049/ip-smt:19982210
[4] T. Arakawa, K. Yoshikawa, S. Chiba, K. Muto and Y. Atsuta, “Applications of Brazed-Type Ultrasonic Probes for High and Low Temperature uses,” Nondstrom Test Eval, Vol. 7, 1992, pp. 263-268.
[5] H. Karasawa, M. Izumi, T. Suzuki, S. Nagai, M. Tamura and S. Fujimori, “Development of Under-Sodium Three-Dimensional Visual Inspection Technique Using Matrix-Arrayed Ultrasonic Transducer,” Journal of Nuclear Science and Technology, Vol. 37, No. 7, 2000, pp. 769-779. doi:10.3327/jnst.37.769
[6] M. Sakamoto, T. Tabaru, M. Akiyama and H. Noma, “Development of an AE Sensor for High Temperature,” Hihakaikensa, Vol. 56, 2007, pp. 225-230.
[7] M. Kobayashi and C. K. Jen, “Piezoelectric Thick Bismuth Titanate/Lead Zirconate Titanate Composite Film Transducers for Smart NDE of Metals,” Smart Materials and Structures, Vol. 13, No. 4, 2004, pp. 951-956. doi:10.1088/0964-1726/13/4/033
[8] M. Kobayashi, C. K. Jen, Y. Ono and J. F. Moisan, “High Temperature Ultrasonic Transducers for NDT of Metals and Industrial Process Monitoring,” Canadian Institute for NDE Journal, Vol. 26, 2005, pp. 5-11.
[9] D. Barrow, T. E. Petroff, R. P. Tandon and M. Sayer, “Characterization of Thick Lead Zirconate Titanate Films Fabricated Using a New Sol Gel Based Process,” Journal of Applied Physics, Vol. 81, No. 2, 1997, pp. 876-885. doi:10.1063/1.364172
[10] D. Waller and A. Safari, “Corona Poling of PZT Ceramics and Flexible Piezoelectric Composites,” Ferroelectrics, Vol. 87, No. 1, 1998, pp. 189-195. doi:10.1080/00150198808201381
[11] M. Kobayashi, T. R. Olding, M. Sayer and C. K. Jen, “Piezoelectric Thick Film Ultrasonic Transducers Fabricated by a Sol-Gel Spray Technique,” Ultrasonics, Vol. 39, No. 10, 2002, pp. 675-680. doi:10.1016/S0041-624X(02)00390-6
[12] M. Kobayashi, C. K. Jen, Y. Ono, K. T. Wu and I. Shih, “Integrated High-Temperature Longitudinal, Shear, and Plate Acoustic-Wave Transducers,” Japanese Journal of Applied Physics, Vol. 46, 2007, pp. 4688-4692. doi:10.1143/JJAP.46.4688
[13] D. Greve, I. J. Oppenheim, H. Sohn, C. P. Yue and W. Wu, “An Inductively Coupled Lamb Wave Transducer,” IEEE Sensors Journal, Vol. 7, No. 2, 2007, pp. 295-301. doi:10.1109/JSEN.2006.886904
[14] M. Kobayashi, K. T. Wu, L. Song, C. K. Jen and N. Ad, “Structural Health Monitoring of Composites Using Integrated and Flexible Piezoelectric Ultrasonic Transducers,” Journal of Intelligence Material Systems and Structures, Vol. 20, No. 8, 2009, pp. 969-977. doi:10.1177/1045389X08101563
[15] M. Kobayashi, C. K. Jen, J. F. Bussiere and K. T. Wu, “High-Temperature Integrated and Flexible Ultrasonic Transducers for Nondestructive Testing,” NDT & E International, Vol. 42, No. 2, 2009, pp. 157-161. doi:10.1016/j.ndteint.2008.11.003

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