Title:
MAGNETIC SENSOR
Document Type and Number:
WIPO Patent Application WO/2023/171207
Kind Code:
A1
Abstract:
A magnetic sensor 10 according to the present invention comprises a substrate 13, a magnetic sensing element 11 which is formed on the substrate 13 with an insulating layer 14 interposed therebetween, and which has an output signal characteristic, with respect to a magnetic field having a sensing axis in an X-axis direction along an in-plane direction of the substrate 13, that is an even function, an alternating current electric wire 12AC capable of applying an alternating current magnetic field to the magnetic sensing element 11, and a direct current electric wire 12DC capable of applying a direct current magnetic field to the magnetic sensing element 11, wherein the magnetic sensing element 11, the alternating current electric wire 12AC and the direct current electric wire 12DC are insulated from another, and at least a portion of the alternating current electric wire 12AC is formed by being embedded in the substrate 13, and thus an increase in power consumption due to an increase in a resistance of the alternating current electric wire when an alternating current is supplied is suppressed, and magnetic resolution is high.
Inventors:
KIKUCHI KANTA (JP)
UMETSU EIJI (JP)
UMETSU EIJI (JP)
Application Number:
PCT/JP2023/004035
Publication Date:
September 14, 2023
Filing Date:
February 07, 2023
Export Citation:
Assignee:
ALPS ALPINE CO LTD (JP)
International Classes:
G01N27/72; G01R33/09; G01R33/02; H10N50/10
Domestic Patent References:
| WO2006109382A1 | 2006-10-19 |
Foreign References:
| JP2006030004A | 2006-02-02 | |||
| JP2017003336A | 2017-01-05 | |||
| JP2001194181A | 2001-07-19 | |||
| JP2006267120A | 2006-10-05 | |||
| JP2019207167A | 2019-12-05 | |||
| JP2021018057A | 2021-02-15 | |||
| JP2001036017A | 2001-02-09 | |||
| JP2016105046A | 2016-06-09 | |||
| JP2009103534A | 2009-05-14 | |||
| JP2006106013A | 2006-04-20 | |||
| JP2013011588A | 2013-01-17 |
Attorney, Agent or Firm:
OKUBO, Katsuyuki (JP)
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