Permeability at higher temperature for development of heat-resist magnetic sensor

Issue title: Proceedings from the 17th International Symposium on Applied Electromagnetics and Mechanics (ISEM 2015)

Guest editors: Fumio Kojima, Futoshi Kobayashi and Hiroyuki Nakamoto

Article type: Research Article

Authors: Honmyo, Katsufumi | Kikuchi, Hiroaki^*

Affiliations: Faculty of Engineering, Iwate University, Morioka, Iwate, Japan

Correspondence: [*] Corresponding author: Hiroaki Kikuchi, Faculty of Engineering, Iwate University, Morioka, Iwate 020-8551, Japan. Tel.: +81 19 621 6890; Fax: +81 19 621 6890; E-mail:hkiku@iwate-u.ac.jp

Abstract: To develop magnetic sensors operating at high temperatures, we evaluated the magnetic parameters of several soft magnetic materials. Although NiFe is a most competent candidate for a magnetic field sensor at room temperature, it is ineffective at higher temperature (above 400°C). On the other hand, Fe based alloy can be expected as a candidate material having a high permeability at higher temperatures due to high Curie temperature. Especially, FeSi steel is most expected to be utilized to a magnetic sensor operating at high temperatures.

Keywords: Permeability, inductance, Curie temperature, magnetic sensor, high temperature

DOI: 10.3233/JAE-162170

Journal: International Journal of Applied Electromagnetics and Mechanics, vol. 52, no. 3-4, pp. 1069-1073, 2016