TY - GEN
T1 - Electromagnetic Ultrasonic Measurement of Bolt Axial Stress Using Barker-Coded Pulse Compression
T2 - 4th International Conference on Energy Internet and Power Systems, ICEIPS 2025
AU - Lei, Zhixun
AU - Xie, Yuedong
AU - Liu, Fulu
AU - Zhang, Yu
N1 - Publisher Copyright:
© 2025 IEEE.
PY - 2025
Y1 - 2025
N2 - Bolts are critical to power systems and pipeline infrastructure, and their axial stress is indicative of joint integrity. To address the low signal-to-noise ratio of echoes in electromagnetic ultrasonic stress measurement of bolts, a finite element analysis model incorporating Barker-coded pulse compression is developed. The analysis examines ultrasonic propagation under varying axial stress states. A 7-bit Barker-coded sinusoid is used as the electromagnetic ultrasonic excitation current, and the echoes are processed by pulse compression. Compared with windowed-sine excitation, the method increases the signal-to-noise ratio by 10 dB and enables rapid, non-contact stress measurement in bolts.
AB - Bolts are critical to power systems and pipeline infrastructure, and their axial stress is indicative of joint integrity. To address the low signal-to-noise ratio of echoes in electromagnetic ultrasonic stress measurement of bolts, a finite element analysis model incorporating Barker-coded pulse compression is developed. The analysis examines ultrasonic propagation under varying axial stress states. A 7-bit Barker-coded sinusoid is used as the electromagnetic ultrasonic excitation current, and the echoes are processed by pulse compression. Compared with windowed-sine excitation, the method increases the signal-to-noise ratio by 10 dB and enables rapid, non-contact stress measurement in bolts.
KW - electromagnetic ultrasonic
KW - finite element analysis
KW - pulse compression
KW - stress measurement
KW - time-of-flight
UR - https://www.scopus.com/pages/publications/105035483857
U2 - 10.1109/ICEIPS67524.2025.11381013
DO - 10.1109/ICEIPS67524.2025.11381013
M3 - 会议稿件
AN - SCOPUS:105035483857
T3 - 2025 4th International Conference on Energy Internet and Power Systems, ICEIPS 2025
SP - 365
EP - 368
BT - 2025 4th International Conference on Energy Internet and Power Systems, ICEIPS 2025
PB - Institute of Electrical and Electronics Engineers Inc.
Y2 - 31 October 2025 through 2 November 2025
ER -