Research of Ultrasonic C-scan Imaging Lateral Resolution

被引：0

作者：

Liu, Ran ^{[1
]}

Pan, Qinxue ^{[1
]}

Xiao, Dingguo ^{[1
]}

Ma, Pengzhi ^{[1
]}

Cheng, Ming ^{[1
]}

机构：

[1] Beijing Inst Technol, Key Lab Fundamental Sci Natl Def Adv Machining Te, Sch Mech Engn, 5 South Zhongguancun St, Beijing, Peoples R China

来源：

2019 IEEE INTERNATIONAL CONFERENCE ON MECHATRONICS AND AUTOMATION (ICMA) | 2019年

关键词：

Ultrasonic transducer; Sound field model; Nondestructive testing; Lateral resolution;

D O I：

10.1109/icma.2019.8816607

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

Aiming at the problem of reflective C-scan imaging lateral resolution, this paper proposes to use the right-angle crack reflection method to measure the lateral resolution of ultrasonic transducers. According to the theoretical sound field distribution at the focal plane of the ultrasonic transducer, the corresponding line response function and the right-angle crack reflection edge response function are simulated, and the -6dB intensity threshold is used to discriminate the ultrasonic C-scan lateral resolution in the amplitude curve. The simulation results are verified by C-scan experiments using three ultrasonic focusing transducers with different frequency. The simulation and experimental results show that the proposed method can effectively measure the C-scan lateral resolution of ultrasonic transducers.

引用

页码：2111 / 2115

页数：5

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