Abstract
This paper presents a novel method to measure the distance of a metallic target using an eddy current sensor based on an analytical solution. It has been discovered that a feature in multi-frequency eddy current (MEC) testing, i.e. the imaginary part of the inductance value at the peak frequency (the frequency when the imaginary part of the inductance reaches peak) is linked to the distance of the sample. In this paper, we show mathematically that as the lift-off increases, the inductance value decreases. Experimental results suggest that the accuracy of distance measurements is within 2%.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
