Next Article in Journal
Side-Polished Fiber-Optic Line Sensor for High-Frequency Broadband Ultrasound Detection
Previous Article in Journal
When Social Networks Meet D2D Communications: A Survey
Previous Article in Special Issue
Determination of the Location and Magnetic Moment of Ferromagnetic Objects Based on the Analysis of Magnetovision Measurements
Open AccessReview

The Improvement of Flaw Detection by the Configuration of Uniform Eddy Current Probes

1
Department of Risk Management and Environmental Sciences, Graduate School of Environmental and Information Sciences, Yokohama National University, Yokohama 240-8501, Japan
2
Department of Electrical Engineering, Faculty of Engineering, Lampung University, Bandar Lampung 35141, Indonesia
*
Authors to whom correspondence should be addressed.
Sensors 2019, 19(2), 397; https://doi.org/10.3390/s19020397
Received: 16 December 2018 / Revised: 14 January 2019 / Accepted: 14 January 2019 / Published: 18 January 2019
(This article belongs to the Special Issue Magnetic Sensors)
In this review, the principles to detect flaws with uniform eddy currents were presented based on the shape and orientation of the excitation coils and detection coils of the probe. Techniques are applied to detect flaws like cracks, especially on the weld zone surface, of test pieces of non-magnetic and ferromagnetic materials, and have unique features which are immune to the effects of lift-off. In the technique of interest, almost all the probe models developed are the type with tangential rectangular excitation coils. The induction condition and the flaw signal for each probe were discussed based on the shape and orientation of the excitation coils and detection coils of the probe. Finally, the challenge of increasing sensitivity to detect flaws with a uniform eddy current was also presented. View Full-Text
Keywords: uniform eddy current; eddy current testing; alternating current field measurement; weld zone; crack; steel; carbon fiber reinforced plastic uniform eddy current; eddy current testing; alternating current field measurement; weld zone; crack; steel; carbon fiber reinforced plastic
Show Figures

Figure 1

MDPI and ACS Style

S. Repelianto, A.; Kasai, N. The Improvement of Flaw Detection by the Configuration of Uniform Eddy Current Probes. Sensors 2019, 19, 397.

Show more citation formats Show less citations formats
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Access Map by Country/Region

1
Back to TopTop