US 12,326,487 B2
Magneto-impedance sensor element
Michiharu Yamamoto, Aichi (JP); Ryusuke Yamashita, Aichi (JP); Shiori Itabuchi, Aichi (JP); and Shunichi Tatematsu, Aichi (JP)
Assigned to AICHI STEEL CORPORATION, Tokai (JP)
Appl. No. 18/044,136
Filed by AICHI STEEL CORPORATION, Tokai (JP)
PCT Filed Sep. 10, 2021, PCT No. PCT/JP2021/033344
§ 371(c)(1), (2) Date Mar. 6, 2023,
PCT Pub. No. WO2022/070842, PCT Pub. Date Apr. 7, 2022.
Claims priority of application No. 2020-165692 (JP), filed on Sep. 30, 2020.
Prior Publication US 2023/0333177 A1, Oct. 19, 2023
Int. Cl. G01R 33/02 (2006.01); G01R 33/06 (2006.01); H10N 50/20 (2023.01)
CPC G01R 33/063 (2013.01) [H10N 50/20 (2023.02)] 12 Claims
OG exemplary drawing
 
1. A magneto-impedance sensor element comprising:
a magneto-sensitive body having electromagnetic properties that vary by a magnetic field externally acting thereon; and
a detection coil wound around the magneto-sensitive body, wherein the magneto-impedance sensor element is configured so that a voltage corresponding to an intensity of the magnetic field acting on the magneto-sensitive body is output from the detection coil by applying a pulse current or a high-frequency current to the magneto-sensitive body, and
the magneto-sensitive body includes a first magneto-sensitive section and a second magneto-sensitive section that are configured to carry the pulse current or the high-frequency current in mutually opposite directions.