NDLI: Extending the Linearity Range of Eddy-Current Displacement Sensor With Magnetoplated Wire

Content Provider	IEEE Xplore Digital Library
Author	Mizuno, T. Enoki, S. Hayashi, T. Asahina, T. Shinagawa, H.
Copyright Year	1965
Abstract	The ratio of the linearity range L_o to the coil diameter D of the ordinary eddy-current (EC) displacement sensor, L_o/D, is approximately 0.48. In conventional technology, the coil diameter needs to be increased to extend the measuring range of the EC displacement sensor. In this paper, we propose the use of magnetoplated wire (MPW) for the coil winding to improve the L_o/D ratio. An MPW is a copper wire whose circumference is plated with a magnetic thin film. We discuss the physical phenomena and impedance characteristics of the MPW coil and compare them with those of a coil that uses a conventional copper wire (COW). The L_o/D values of an EC sensor with an MPW coil and with a COW coil are 1.0 and 0.48, respectively. These results demonstrate the ability of the MPW coil to double L_o/D value over that of the COW coil
Sponsorship	IEEE Magnetics Society
Starting Page	543
Ending Page	548
Page Count	6
File Size	667140
File Format	PDF
ISSN	00189464
Volume Number	43
Issue Number	2
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2007-02-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Linearity Magnetic sensors Coils Wire Displacement measurement Sensor phenomena and characterization Impedance Magnetic flux Voltage Sensor systems sensitivity Copper wire displacement sensor eddy current impedance linearity magnetoplated wire output voltage quality factor
Content Type	Text
Resource Type	Article
Subject	Electronic, Optical and Magnetic Materials Electrical and Electronic Engineering

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