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Published in: Russian Journal of Nondestructive Testing 7/2021

01-07-2021 | ACOUSTIC METHODS

Ultrasonic Measurement Optimization of Spot Welding Diameter of Thin Plate Based on Gain Compensation Algorithm

Authors: Gang Wu, Dongdong Zhang, Shanyue Guan

Published in: Russian Journal of Nondestructive Testing | Issue 7/2021

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Abstract

Aiming at the influence of signal attenuation on nugget diameter evaluation results in ultrasonic testing of resistance spot welding, a gain compensation method based on wavelet transform for different frequency subband signals is proposed in this paper. Each subband signal is compensated and reconstructed respectively, and the nugget diameter is calculated by the reconstructed signal. This method is used to compensate the spot welding test signal and simulation signal respectively. The nugget diameter is calculated by the compensation signal, and the calculated value is compared with the measured value of nugget diameter. The results show that the method can effectively reduce the calculation error of nugget diameter by compensating the gain of ultrasonic testing signal.

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Literature
13.
go back to reference Moilanen, P., Salmi, A., Kilappa, V., Zhao, Z., Timonen, J., and Hæggström, E., Phased laser diode array permits selective excitation of ultrasonic guided waves in coated bonemimicking tubes, J. Appl. Phys., 2017, vol. 122, no. 14, article ID 144901. https://doi.org/10.1063/1.5007224CrossRef Moilanen, P., Salmi, A., Kilappa, V., Zhao, Z., Timonen, J., and Hæggström, E., Phased laser diode array permits selective excitation of ultrasonic guided waves in coated bonemimicking tubes, J. Appl. Phys., 2017, vol. 122, no. 14, article ID 144901. https://​doi.​org/​10.​1063/​1.​5007224CrossRef
Metadata
Title
Ultrasonic Measurement Optimization of Spot Welding Diameter of Thin Plate Based on Gain Compensation Algorithm
Authors
Gang Wu
Dongdong Zhang
Shanyue Guan
Publication date
01-07-2021
Publisher
Pleiades Publishing
Published in
Russian Journal of Nondestructive Testing / Issue 7/2021
Print ISSN: 1061-8309
Electronic ISSN: 1608-3385
DOI
https://doi.org/10.1134/S1061830921070135

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