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以获得更高的信噪比,当编码带宽增大时,换能器带 [5] 李长征, 邱长春, 黄建通, 等. 编码检测技术中换能器带宽影
宽的限制使得编码激励方法的轴向分辨率先减小 响分析 [J] . 人民黄河, 2012, 34(10): 136–138.
Li Changzheng, Qiu Changchun, Huang Jiantong, et
后趋于稳定。
al. Analysis on influence from bandwidth of transducer
in encoding detection technology[J]. Yellow River, 2012,
34(10): 136–138.
参 考 文 献
[6] Wang Q, Mao J, Lian G. Ultrasonic chirp-coded excita-
tion for highly attenuating material testing[J]. Japanese
[1] 周正干, 魏东, 向上. 线性调频脉冲压缩方法在空气耦合超声
Journal of Applied Physics, 2019, 58(8): 086504.
检测中的应用研究 [J]. 机械工程学报, 2010, 46(18): 24–28,
[7] Cong S, Gang T, Zhang J. Parameter design of linear
35.
frequency modulated excitation waveform for ultrasonic
Zhou Zhenggan, Wei Dong, Xiang Shang. Application
nondestructive testing of metallic materials[J]. Journal of
of linear-frequency-modulation based pulse compression
Nondestructive Evaluation, 2014, 33(4): 684–693.
in air-coupled ultrasonic testing[J]. Journal of Mechanical
Engineering, 2010, 46(18): 24–28, 35. [8] 崔付俊, 刘世博, 何立功, 等. 线性调频信号激励超声换能器
[2] Behar V, Adam D. Parameter optimization of pulse com- 的方法研究 [J]. 声学技术, 2014, 33(5): 439–445.
pression in ultrasound imaging systems with coded exci- Cui Fujun, Liu Shibo, He Ligong, et al. The research of
tation[J]. Ultrasonics, 2004, 42(10): 1101–1109. ultrasonic transducer excited by chirp signal[J]. Technical
[3] 丛森. 超声调频激励方法及奥氏体不锈钢焊缝缺陷检测研 Acoustics, 2014, 33(5): 439–445.
究 [D]. 哈尔滨: 哈尔滨工业大学, 2015: 1–120. [9] Misaridis T, Jensen J A. Use of modulated excitation sig-
[4] Misaridis T, Jensen J A. Use of modulated excitation sig- nals in medical ultrasound. Part I: design and perfor-
nals in medical ultrasound. Part I: basic concepts and ex- mance for medical imaging applications[J]. IEEE Trans-
pected benefits[J]. IEEE Transactions on Ultrasonics, Fer- actions on Ultrasonics, Ferroelectrics, and Frequency Con-
roelectrics, and Frequency Control, 2005, 52(2): 177–191. trol, 2005, 52(2): 192–207.