Korean Journal of Fisheries and Aquatic Sciences (한국수산과학회지)

The Korean Society of Fisheries and Aquatic Science (한국수산과학회)
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Bandwidth Enhancement of a Broadband Ultrasonic Mosaic Transducer using 48 Tonpilz Transducer Elements with 12 Resonance Frequencies

12 주파수의 48 tonpilz 진동소자를 이용한 광대역 초음파 모자이크 변환기의 대역폭 확장

  • Lee, Dae-Jae (Division of Marine Production System Management, Pukyong National University)
  • 이대재 (부경대학교 해양생산시스템관리학부)
  • Received : 2014.04.10
  • Accepted : 2014.04.28
  • Published : 2014.06.30
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Abstract

This article describes the design and performance characteristics of a broadband ultrasonic mosaic transducer. We focus on the improved bandwidth in the high frequency band of a previously designed broadband ultrasonic transducer (Lee et al., 2014). The improvement in the pulse-echo bandwidth was achieved by employing twelve $2{\times}2$ element subarrays, operating at different resonance frequencies, and utilizing the mosaic array concept. We found that the -6 dB and -12 dB bandwidths of the newly developed broadband ultrasonic mosaic transducer, were up to 155% and 170% of the previously designed model, with a quality factor of 1.71 and 1.25, respectively. The averaged TVR (transmitting voltage response), SRT (receiving sensitivity), and FOM (figure of merit) values in a nearly flat transmitting response band, from 45 to 105 kHz providing a -12 dB bandwith of 60 kHz, were 163.3 dB (re $1{\mu}Pa/V$ at 1 m), -192.8 dB (re $1V/{\mu}Pa$), and -30.9 dB, respectively.

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References

  1. Feng F, Shen J and Den J. 2006. A 2D equivalent circuit of piezelectric ceramic ring for transducer design. Ultrasonics 44, 723-726. https://doi.org/10.1016/j.ultras.2006.05.083
  2. Hawkins DW and Gough PT. 1996. Multiresonance design of a Tonpilz transducer using the finite element method. IEEE Trans Ultrason Ferroelect Freq Contr 40, 782-789.
  3. Hughes WJ and Zipparo MJ. 1969. Computer modeling of ultrasonic piezoelectric transducers. Technical report TR 96-007, Applied Research Lab, The Pennsylvania State Univ, Pennsylvania, USA, 1-116.
  4. Hughes WJ. 1998. Transducer, underwater acoustic. Encyclopedia of applied physics 22, 67-84.
  5. Ilua A, Carotenuto R and Pappalardo M. 2002. An approximated 3-D model of the Langevin t ransducer and its experimental validation. J Acoust Soc Am 111, 2675-2680. https://doi.org/10.1121/1.1476684
  6. Kachanov VK and Sokolov IV. 2007. Requirement for choosing the parameters of broadband transducers for testing objects with high damping of ultrasonic signals. Russian J Nondestr Test 43, 743-754. http://dx.doi.org/10.1134/S1061830907110058.
  7. Kachanov VK, Sokolov IV, Konov MM, Timofeev DV and Sinitsyn AA. 2010. Development of a broadband low-frequency mosaic ultrasonic piezoelectric transducer with a limited aperture. Russian J Nondestr Test 46, 645-650. http://dx.doi.org/10.1134/S1061830910090044.
  8. Kachanov VK, Sokolov IV, Konov MM and Sinitsyn AA. 2011. Comparision of the futures of composit and mosaic piezotransducers for the ultrasonic testing of products with a high attenuation level of ultrasonic signals. Russian J Nondestr Test 47, 532-544. http://dx.doi.org/10.1134/S1061830911080067.
  9. Kara H, Ramesh R, Stevens R and Browen CR. 2003. Porous PZT ceramic for receiving transducers. IEEE Trans Ultrason Ferroelect Freq Contr 50, 289-296. https://doi.org/10.1109/TUFFC.2003.1193622
  10. Lee DJ and Shin HI. 2001. Development of a split beam transducer for measuring fish size distribution. Bull Korean Soc Fish Tech 37, 196-213.
  11. Lee DJ and Lee WS. 2010. Design, fabrication and performance characteristics of a 50 kHz Tonpilz type transducer with a half-wavelength diameter. J Kor Soc Fish Tech 46, 173-183. http://dx.doi.org/10.3796/KSFT.2010.46.2.173.
  12. Lee DJ and Lee WS. 2011. Development of split-beam acoustic transducer for a 50 kHz fish sizing echo sounder. Kor J Fish Aquat Sci 44, 413-422. http://dx.doi.org/10.5657/KFAS. 2011.0413.
  13. Lee DJ. 2011. Estimation of angular location and directivity compensation of split-beam acoustic transducer for a 50 kHz fish sizing echo sounder. Kor J Fish Aquat Sci 44, 423-430. http://dx.doi.org/10.5657/KFAS. 2011.0423.
  14. Lee DJ, Kwak MS and Kang HY. 2014. Design and development of the broadband ultrasonic transducer operating over the frequency range of 40 kHz to 75 kHz. Kor J Fish Aquat Sci, In press. https://doi.org/10.5657/KFAS.2014.0292
  15. Lin S. 1994. The three-dimensional equivalent circuit and natural frequencies of rectangular piezoelectric ceramic resonators. J Acoust Soc Am 96, 1620-1626. https://doi.org/10.1121/1.410241
  16. Lin S. 2005. Analysis of the sandwich piezoelectric ultrasonic transducer in coupled vibration. J Acoust Soc Am 117, 653-661. https://doi.org/10.1121/1.1849960
  17. Lin S and Hua T. 2008. Study on the sandwich piezoelectric ceramic ultrasonic transducer in thickness vibration. Smart Mater Struct 17, 1-9.
  18. Mancic D. and Radmanovic M. 2002. piezoceramic ring loaded on the face: a three-demensional approach. Electro J Tech Acoust 2, 1-7.
  19. Mancic D and Radmanovic M. 2004. Design of ultrasonic transducers by means of the apparent elasticity method. Working and Living Environmental Protection 2, 293-300.
  20. Mancic D, Radmanovic M, Petrusic Z and Stancic G. 2008. Influence of ultrasonic transducer acoustic impedances and dimensions on its input electrical impedance. Working and Living Environmental Protection 5, 59-72.
  21. Mancic D and Stancic G. 2010. New three-dimensional matrix modes of the ultrasonic sandwich transducers. J Sandwich Struc Mater 12, 63-80. https://doi.org/10.1177/1099636209103511
  22. Radmanovic M and Mancic D. 2004. Design and modeling of the power ultrasonic transducers. MP Interconsulting, Le Locle, Switzerland, 8-161.
  23. Rajapan D. 2002. Performance of a low-frequency, multi-resonant broadband Tonpilz transducer. J Acoust Soc Am 111, 1692-1694. https://doi.org/10.1121/1.1456927
  24. Yao Q and Bjorno L. 1997. Broadband Tonpilz underwater acoustic transducers based on multimode optimation. IEEE Trans Ultrason Ferroelect Freq Contr 44, 1060-1066. https://doi.org/10.1109/58.655631