NDLI: A torque sensor using magnetostrictive sleeve attached to the shaft by shrink-fit

Content Provider	IEEE Xplore Digital Library
Author	Sasada, I. Habata, Y. Eyou, H.
Copyright Year	2005
Description	Author affiliation: Dept. of Appl. Sci. for Electron. & Mater., Kyushu Univ., Japan (Sasada, I.; Habata, Y.; Eyou, H.)
Abstract	The torque sensor is one of the most important sensors for the control of the mechanical system. When the applied torque twists the shaft, the magnetic anisotropy can be induced in the surface of the magnetostrictive shaft such as a steel shaft. By using magnetostrictive sleeve attached to the shaft, mechanical property of the shaft and the magnetic property of the sleeve can be optimized independently, thus giving more flexibility to the sensor design. Several methods for detecting torque exerted on the rotating shaft have been developed based on various uses of the interaction between the magnetic anisotropy and the magnetization process. The authors' group have developed a planar pickup coil system to make the Dahle type torque sensor compact in which two figure-of-eight coils are orthogonally coupled and the mutual inductance is made sensitive to the applied torque. In this paper, the shaft part of the torque sensor is investigated, in which a magnetostrictive sleeve is attached to the shaft by shrink-fit.
Sponsorship	Magnetics Soc. of Japan Magnetics Soc. of the IEEE
Starting Page	435
Ending Page	436
File Size	188074
Page Count	2
File Format	PDF
ISBN	0780390091
DOI	10.1109/INTMAG.2005.1463646
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2005-04-04
Publisher Place	Japan
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Magnetic sensors Magnetostriction Shafts Magnetic anisotropy Mechanical sensors Perpendicular magnetic anisotropy Sensor systems Coils Torque control Control systems
Content Type	Text
Resource Type	Article

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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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