A Study of Applying Pulsed Remote Field Eddy Current in Ferromagnetic Pipes Testing
AbstractPulsed Remote Field Eddy Current Testing (PRFECT) attracts the attention in the testing of ferromagnetic pipes because of its continuous spectrum. This paper simulated the practical PRFECT of pipes by using ANSYS software and employed Least Squares Support Vector Regression (LSSVR) to extract the zero-crossing time to analyze the pipe thickness. As a result, a secondary peak is found in zero-crossing time when transmitter passed by a defect. The secondary peak will lead to wrong quantification and the localization of defects, especially when defects are found only at the transmitter location. Aiming to eliminate the secondary peaks, double sensing coils are set in the transition zone and Wiener deconvolution filter is applied. In the proposed method, position dependent response of the differential signals from the double sensing coils is calibrated by employing zero-mean normalization. The methods proposed in this paper are validated by analyzing the simulation signals and can improve the practicality of PRFECT of ferromagnetic pipes. View Full-Text
Externally hosted supplementary file 1
Scifeed alert for new publicationsNever miss any articles matching your research from any publisher
- Get alerts for new papers matching your research
- Find out the new papers from selected authors
- Updated daily for 49'000+ journals and 6000+ publishers
- Define your Scifeed now
Luo, Q.; Shi, Y.; Wang, Z.; Zhang, W.; Li, Y. A Study of Applying Pulsed Remote Field Eddy Current in Ferromagnetic Pipes Testing. Sensors 2017, 17, 1038.
Luo Q, Shi Y, Wang Z, Zhang W, Li Y. A Study of Applying Pulsed Remote Field Eddy Current in Ferromagnetic Pipes Testing. Sensors. 2017; 17(5):1038.Chicago/Turabian Style
Luo, Qingwang; Shi, Yibing; Wang, Zhigang; Zhang, Wei; Li, Yanjun. 2017. "A Study of Applying Pulsed Remote Field Eddy Current in Ferromagnetic Pipes Testing." Sensors 17, no. 5: 1038.
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.