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的虚拟声源之间的间距也会越小，所得图像分辨率 [7] Sutcliffe M, Weston M, Dutton B, et al. Real-time full
会相应提高，进而改善缺陷形状和大小失真。再如， matrix capture with auto-focussing of known geometry
through dual layered media[C]//51st Annual Conference
阵元尺寸会影响声束扩散角和所发出的声波能量，
of the British Institute of Non-Destructive Testing, 2012.
会对分辨率产生较大的影响。综上，选择适当的相 [8] Weston M, Mudge P, Davis C, et al. Time efficient auto-
控阵探头参数有利于得到高质量虚拟源缺陷图像。 focussing algorithms for ultrasonic inspection of dual-
layered media using full matrix capture[J]. NDT & E In-
4 结论 ternational, 2012, 47(2): 43–50.
[9] 周正干, 彭地, 李洋, 等. 相控阵超声检测技术中的全聚焦成
像算法及其校准研究 [J]. 机械工程学报, 2015, 51(10): 1–7.
本文利用虚拟源与合成孔径聚焦相结合的复
Zhou Zhenggan, Peng Di, Li Yang, et al. Ultrasonic
合成像技术，解决耦合条件下复杂曲面构件超声检 phased array inspection on the wedge using full matrix
测图像缺陷位置失真问题。利用半径为60 mm的铝 data[J]. Journal of Mechanical Engineering, 2015, 51(10):
1–7.
制半圆柱 B 扫描数据分别获得了构件的原始 B 扫 [10] 胡宏伟, 杜剑, 李洋, 等. 基于稀疏矩阵的两层介质超声相控
描图像、水中声速的合成孔径聚焦图像、铝中声速 阵全聚焦成像 [J]. 机械工程学报, 2017, 53(14): 128–135.
的合成孔径聚焦图像以及虚拟源 -合成孔径聚焦图 Hu Hongwei, Du Jian, Li Yang, et al. Two-layer medium
ultrasonic phased array total focusing method imaging
像。结果表明，与单声速的合成孔径聚焦方法相比，
based on sparse matrix[J]. Journal of Mechanical Engi-
基于虚拟源的合成孔径聚焦成像算法能够准确地 neering, 2017, 53(14): 128–135.
表征耦合条件下复杂曲面构件的界面轮廓和缺陷 [11] O’donnell M, Thomas L J. Efficient synthetic aperture
imaging from a circular aperture with possible application
的真实位置。
to catheter-based imaging[J]. IEEE Transactions on Ul-
trasonics Ferroelectrics & Frequency Control, 1992, 39(3):
366–380.
参 考 文 献
[12] Ylitalo J. Improving contrast resolution in ultrasound
holographic B-imaging: comparison between simulation
[1] 周正干, 李洋, 周文彬. 相控阵超声后处理成像技术研究、应用
and experiment[C]. Proceedings of the Ultrasonics Sym-
和发展 [J]. 机械工程学报, 2016, 52(6): 1–11.
posium, 1993 Proceedings, IEEE, F, 1993.
Zhou Zhenggan, Li Yang, Zhou Wenbin. Ultrasonic
[13] Passmann C, Ermert H. A 100-MHz ultrasound imag-
phased array post-processing imaging technique: a re-
ing system for dermatologic and ophthalmologic diagnos-
view[J]. Journal of Mechanical Engineering, 2016, 52(6):
tics[J]. IEEE Transactions on Ultrasonics Ferroelectrics &
1–11.
Frequency Control, 1996, 43(4): 545–552.
[2] 陈尧, 罗忠兵, 张东辉, 等. 基于 EBSD 技术构建弹性各向
[14] Sutcliffe M, Charlton P, Weston M. Multiple virtual
异性粗晶材料超声仿真模型的研究 [J]. 机械工程学报, 2016,
source aperture imaging for non-destructive testing[J]. In-
52(18): 24–30.
sight: Non-Destructive Testing & Condition Monitoring,
Chen Yao, Luo Zhongbing, Zhang Donghui, et al.
2014, 56(2): 75–81.
Research on modeling of ultrasonic propagation in
[15] Sutcliffe M, Charlton P, Weston M. Virtual source aper-
anisotropic coarse-grained materials based on EBSD tech-
ture image processing methods for non-destructive test-
nique[J]. Journal of Mechanical Engineering, 2016, 52(18):
ing[J]. Insight - Non-Destructive Testing and Condition
24–30.
Monitoring, 2016, 58(2): 82–86.
[3] 徐娜, 周正干, 刘卫平, 等. L 型构件 R 区的超声相控阵检测
[16] 王平, 高阳, 曹世超, 等. 超声成像中基于虚拟阵元的双聚焦
方法 [J]. 航空学报, 2013, 34(2): 419–425.
波束合成方法 [J]. 重庆大学学报, 2013, 36(5): 75–79.
Xu Na, Zhou Zhenggan, Liu Weiping, et al. Ultrasoinc
Wang Ping, Gao Yang, Cao Shichao, et al. The method
phased array inspection method for the corner of L-shaped
of dual focusing beamforming based on virtual element in
components[J]. Acta Aeronautica et Astronautica Sinica,
ultrasound imaging[J]. Journal of Chongqing University,
2013, 34(2): 419–425.
2013, 36(5): 75–79.
[4] 杨春. 分层物体的合成孔径聚焦超声成像技术研究 [D]. 北京:
[17] 李遥, 吴文焘, 李平, 等. 超声虚源成像中自适应双向空间逐
清华大学, 2014.
点聚焦方法 [J]. 声学学报, 2016, 41(3): 287–295.
[5] Shlivinski A, Langenberg K J. Defect imaging with elastic
Li Yao, Wu Wentao, Li Ping, et al. Adaptive bidirectional
waves in inhomogeneous-anisotropic materials with com-
point-wise focusing method in ultrasonic imaging based on
posite geometries[J]. Ultrasonics, 2007, 46(1): 89–104.
virtual source[J]. Acta Acustica, 2016, 41(3): 287–295.
[6] 孙宝申, 沈建中. 合成孔径聚焦超声成像 (一)[J]. 应用声学,
[18] 王浩, 戴丹蕾, 胡文祥. 基于虚拟源技术的双层固体结构超声
1993, 12(3): 43–48.
成像 [J]. 应用声学, 2017, 36(4): 283–288.
Sun Baoshen, Shen Jianzhong. Synthetic aperture fo-
Wang Hao, Dai Danlei, Hu Wenxiang. Ultrasound imag-
cused ultrasound imaging[J]. Journal of Applied Acous-
ing of double layer solid structure with virtual source[J].
tics, 1993, 12(3): 43–48.
Journal of Applied Acoustics, 2017, 36(4): 283–288.