Research on weak signal detection technique for electromagnetic ultrasonic inspection system

被引：5

作者：

Kang Lei ^{[1
]}

Mi Wujun ^{[1
]}

Lv Chao ^{[1
]}

Wang Shujuan ^{[1
]}

机构：

[1] Harbin Inst Technol, Sch Elect Engn, Harbin 150001, Peoples R China

来源：

ICIEA 2008: 3RD IEEE CONFERENCE ON INDUSTRIAL ELECTRONICS AND APPLICATIONS, PROCEEDINGS, VOLS 1-3 | 2008年

关键词：

D O I：

10.1109/ICIEA.2008.4582946

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

Electromagnetic acoustic transducers (EMATs) are very sensitive to surrounding noise while their transduction efficiency is rather poor. Consequently, ultrasonic signals received by EMATs are often contaminated by strong noise. To extract information of the received signals, a weak signal detection technique based on moving average, cross-correlation and self-correlation methods has been proposed. Crack signals obtained by an electromagnetic ultrasonic inspection system are processed by this cross-and-self-correlation detection technique. Feasibility and efficiency of the proposed technique are verified by experiment results with high reproducibility. By combining cross-correlation and self-correlation detection methods, this technique possesses a much stronger capability of weak signal detection than applying them individually.

引用

页码：2394 / 2399

页数：6

共 50 条

[1] DESIGN OF FLAW DETECTION HARDWARE SYSTEM IN ELECTROMAGNETIC ULTRASONIC INSPECTION SYSTEM
Wang, Ru-ru
Zhang, Ying-hong
Qian, Zheng-hua
Wang, Bin
Wu, Xian-wei
Ma, Zhi-yong
[J]. 2022 16TH SYMPOSIUM ON PIEZOELECTRICITY, ACOUSTIC WAVES, AND DEVICE APPLICATIONS, SPAWDA, 2022, : 675 - 682
[2] Research on detection method of electromagnetic ultrasonic signal based on FPGA
Wang Shujuan
Pan Weicai
Yuan Peng
Lv Chao
[J]. ICIEA 2008: 3RD IEEE CONFERENCE ON INDUSTRIAL ELECTRONICS AND APPLICATIONS, PROCEEDINGS, VOLS 1-3, 2008, : 2378 - 2382
[3] Weak ultrasonic signal detection in strong noise
Wang Da-Wei
Wang Zhao-Ba
[J]. ACTA PHYSICA SINICA, 2018, 67 (21)
[4] Study on weak signal extraction in ultrasonic detection
Institute of Aircraft Design, Beijing University of Aeronautics and Astronautics, Beijing 100083, China
[J]. Zhendong Ceshi Yu Zhenduan, 2006, 1 (33-36):
[5] Chaos-based weak signal detection method and virtual instrument-based weak ultrasonic signal detecting system
Jiang, WL
Zhang, SQ
[J]. PROCEEDINGS OF THE SECOND INTERNATIONAL SYMPOSIUM ON INSTRUMENTATION SCIENCE AND TECHNOLOGY, VOL 3, 2002, : 118 - 123
[6] Research of chaotic system measuring weak signal based on correlation detection
Nie, CY
Shi, YW
Yi, WS
Wang, YW
[J]. ICEMI 2005: Conference Proceedings of the Seventh International Conference on Electronic Measurement & Instruments, Vol 1, 2005, : 77 - 80
[7] Crack detection and sizing technique by ultrasonic and electromagnetic methods
Komura, I
Hirasawa, T
Nagai, S
Takabayashi, J
Naruse, K
[J]. NUCLEAR ENGINEERING AND DESIGN, 2001, 206 (2-3) : 351 - 362
[8] Research on laser weak signal detection technology
Wang Caixia
[J]. Proceedings of the First International Symposium on Test Automation & Instrumentation, Vols 1 - 3, 2006, : 694 - 696
[9] Detection of weak signal and fusion of neural network data in ultrasonic system using chaos theory
Zhang, SQ
Zhang, JC
Li, X
[J]. PROCEEDINGS OF THE SECOND INTERNATIONAL SYMPOSIUM ON INSTRUMENTATION SCIENCE AND TECHNOLOGY, VOL 3, 2002, : 926 - 929
[10] Automatic signal classification system for ultrasonic weld inspection signals
[J]. Ramuhalli, P., 2000, American Soc for Nondestructive Testing, Columbus, OH, United States (58)

← 1 2 3 4 5 →