FBG Magnetostrictive Composite Flux Sensor for Monitoring Rotor Permanent Magnet Flux

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The use of advanced techniques for monitoring permanent magnet (PM) motors, and the diagnostic procedures aimed at monitoring their magnets’ health, in particular, are growing in importance. This paper presents a composite magnetostrictive Fibre Bragg Grating (FBG) flux sensor design aimed at facilitating straightforward in-situ installation in air-gaps of conventional PM motor topologies and enabling in-situ observation of different rotor PM magnetization levels. The sensor design is presented, involving the integration of Terfenol-D powder and an FBG sensor in an epoxy resin matrix within a dedicated 3D printed wedge enabling easy retrofit into the motor’s stator slot. The flux sensor in-situ performance is then tested and verified in tests involving different magnetization levels on the test motor’s PM rotor.

Bibliographical metadata

Original languageEnglish
Title of host publicationIEEE MECO 2022 11th Mediterranean Conference on Embedded Computing
Publication statusAccepted/In press - 27 Apr 2022
EventIEEE MECO 11th Mediterranean Conference on Embedded Computing - Hotel Budva, Budva, Montenegro
Event duration: 7 Jun 202211 Jun 2022


ConferenceIEEE MECO 11th Mediterranean Conference on Embedded Computing
Abbreviated titleIEEE MECO 2022
Internet address