Resonant Ultrasonic Coded Method for Rubber-steel Bonded Structure

doi:10.3901/JME.2020.20.022

Abstract

Abstract: For debonding detection of rubber-steel bonded structure,a resonant ultrasonic coded detection method with high detection sensitivity is proposed. It is different from the traditional method of envelope imaging after pulse compression. The resonant ultrasonic coded detection method needs to use carrier frequency information to enhance the energy of the characteristic signal. The method is analyzed in frequency domain. Firstly,the center frequency of transducer and coded signal is chosen near the resonance frequency of steel layer,and then the interval of characteristic signal is selected for pulse compression according to the side lobe suppression characteristics of chirp signal and Barker code. The results show that the debonding detection sensitivity of chirp signal and Barker code is significantly higher than that of the traditional square wave excitation,the sidelobe suppression range of the chirp signal is more controllable than that of the chirp signal,and the bandwidth of the chirp signal is more flexible.

Key words: bonded structure, high attenuation, coded signal, pulse compression, signal-to-noise ratio

CLC Number:

TB553

WANG Qiang, MAO Jie, LI Wei, LIAN Guoxuan. Resonant Ultrasonic Coded Method for Rubber-steel Bonded Structure[J]. Journal of Mechanical Engineering, 2020, 56(20): 22-27.

References

[1] WANG X,LIAN G,LI M,et al. Detection of the interface disbond of rubber laminate beneath a steel layer using ultrasound resonance[J]. Progress in Natural Science,2001,11:165-168.
[2] 王小民,廉国选,李明轩.阻抗非匹配分层介质反射波谱分析[C]//中国声学学会2001年青年学术会议论文集,2001. WANG Xiaomin,LIAN Guoxuan,LI Mingxuan. Analysis of the reflection spectrum in a layered medium of mismatched impedance[C]//Chinese Acoustics Society 1999 Youth Conference,2001.
[3] MAO J,LI M,WANG X. Thickness determination for a two-layered composite of a film and a plate by low-frequency ultrasound[J]. Chinese Physics Letter,2007,24(3):755-758.
[4] 王杨,毛捷,李明轩,等.固体板背覆薄层特性的低频超声反演方法研究[J].声学学报,2009,34(1):11-19. WANG Yang,MAO Jie,LI Mingxuan,et al. Research on two inverse methods for characterization of an inaccessible thin film under a plate by low-frequency ultrasound[J]. Acta Acustica,2009,34(1):11-19.
[5] ZHOU C,LI M,MAO J,et al. Determination of thickness of an inaccessible thin film under a multilayered system from natural frequencies[J]. Chinese Physics Letter,2008,25(4):1336-1339.
[6] Misaridis T,Jensen J A. Use of modulated excitation signals in medical ultrasound. Part II:Design and performance for medical imaging applications[J]. IEEE Transactions on Ultrasonics,Ferroelectrics,and Frequency Control,2005,52(2):192-207.
[7] Leavens C,Willams R,Burns P,et al. The use of phase codes in ultrasound imaging:SNR gain and bandwidth requirements[J]. Applied Acoustics,2009,70(10):1340-1351.
[8] Pallav P,Gan T H,Hutchins D A. Elliptical-Tukey chirp signal for high-resolution,air-coupled ultrasonic imaging[J]. Ultrasonics Ferroelectrics& Frequency Control IEEE Transactions on,2007,54(8):1530-1540.
[9] 彭虎,杜宏伟,韩雪梅,等.巴克码在高帧率超声成像系统中应用的仿真研究[J].北京生物医学工程,2004,23(4):251-253,308. PENG Hu,DU Hongwei,HAN Xuemei,et al. Simulation study on application of Barker code in the high frame rate image system[J]. Beijing Biomedical Engineering,2004,23(4):251-253,308.
[10] Yu Z,Zhou Y,Li Z,et al. Performance improvement of magneto-acousto-electrical tomography for biological tissues with sinusoid-Barker coded excitation[J]. Chinese Physics B,2018,27(9):094302.
[11] 张慧琳,宋小军,他得安. Barker码激励超声导波在长骨检测中的应用[J].声学学报,2014,39(2):257-263. ZHANG Huilin,SONG Xiaojun,TA Dean. Application of Barker code excited ultrasonic guided waves to long bone detection[J]. Acta Acustica,2014,39(2):257-263.
[12] 李明,陈晓东,李妍,等. Chirp编码的鲁棒医学超声内窥合成孔径方法[J].声学学报,2012,37(3):237-243. LI Ming,CHEN Xiaodong,LI Yan,et al. Chirp-coded robust synthetic aperture technique for medical endoscopic ultrasonography[J]. Acta Acustica,2012,37(3):237-243.
[13] Han Q,Wang P,Zheng H. Modified ultrasonic time-of-flight diffraction testing with Barker code excitation for sizing inclined crack[J]. Applied Acoustics,2018,140:153-159.
[14] Hutchins D,Burrascano P,Davis L,et al. Coded waveforms for optimised air-coupled ultrasonic nondestructive evaluation[J]. Ultrasonics,2014,54(7):1745-1759.
[15] 白玉海,裴力伟.体声波Barker码序列及其在检测超声中的应用[J].声学学报,1992,19(5):372-375. BAI Yuhai,PEI Liwei. Bulk acoustic wave Barker code sequence and the application in ultrasonic NDT[J]. Acta Acustica,1992,19(5):372-375.
[16] 周正干,马保全,孙志明,等.相位编码脉冲压缩方法在空气耦合超声检测信号处理中的应用[J].机械工程学报,2014,50(2):48-54. ZHOU Zhenggan,MA Baoquan,SUN Zhiming,et al. Application of phase coded pulse compression method to air-coupled ultrasonic testing signal processing[J]. Journal of Mechanical Engineering,2014,50(2):48-54.
[17] 周正干,张宏宇,魏东.脉冲压缩技术在超声换能器激励接收方法中的应用[J].中国机械工程,2010,21(17):2127-2131. ZHOU Zhenggan,ZHANG Hongyu,WEI Dong. Applications of pulse compression in ultrasonic transducers excitation and receiving[J]. China Mechanical Engineering,2010,21(17):2127-2131.
[18] 周正干,魏东,向上.线性调频脉冲压缩方法在空气耦合超声检测中的应用研究[J].机械工程学报,2010,46(18):24-28. ZHOU Zhenggan,WEI Dong,XIANG Shang. Application of linear-frequency-modulation based pulse compression in air-coupled ultrasonic testing[J]. Journal of Mechanical Engineering,2010,46(18):24-28.
[19] Rao N A. Investigation of a pulse compression technique for medical ultrasound:A simulation study[J]. Medical& Biological Engineering& Computing,1994,32(2):181-188.
[20] RAMALLI A,GUIDI F,BONI E,et al. A real-time chirp-coded imaging system with tissue attenuation compensation[J]. Ultrasonics,2015,60:65-75.
[21] WANG Q,MAO J,LIAN G. Ultrasonic chirp-coded excitation for highly attenuating material testing[J]. Japanese Journal of Applied Physics,2019,58(8):086504.