Magneto-impedance sensor element

JP7730035B2Active Publication Date: 2025-08-27AICHI STEEL CORP
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Patent Information

Application Number
JP2022553759
Authority / Receiving Office
JP · JP
Patent Type
Patents
Current Assignee / Owner
Priority Date
2020-09-30
Filing Date
2021-09-10
Publication Date
2025-08-27
Estimated Expiration
2041-09-10

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Abstract

A magneto-impedance sensor element (1) includes: a magneto-sensitive body (2) the electromagnetic characteristics of which change according to a magnetic field acting from the outside; and a detection coil (3) wound around the magneto-sensitive body (2). The magneto-impedance sensor element (1) is configured such that, by passing a pulse current or a high-frequency current through the magneto-sensitive body (2), a voltage corresponding to the strength of the magnetic field acting on the magneto-sensitive body (2) is output from the detection coil (3). The magneto-sensitive body (2) has a first magneto-sensitive section (21) and a second magneto-sensitive section (22) that are configured such that a pulse current or a high-frequency current flows therethrough in mutually opposite directions.
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Citation Information

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