Title:
DISPLACEMENT DETECTING DEVICE
Document Type and Number:
WIPO Patent Application WO/2019/049652
Kind Code:
A1
Abstract:
In a magnetic sensor, a detected value when an applied magnetic field from a magnet is zero, in a correlation function between the applied magnetic field from the magnet and the detected value at a first temperature, is defined as a first offset value, and the detected value when the applied magnetic field from the magnet is zero, in a correlation function between the applied magnetic field from the magnet and the detected value at a second temperature higher than the first temperature, is defined as a second offset value. A plurality of magnetic sensors include one group of magnetic sensors which detect the applied magnetic field from the magnet with mutually opposite polarities. One of the one group of magnetic sensors is a first magnetic sensor with which a value obtained by subtracting the first offset value from the second offset value is positive, and the other is a second magnetic sensor with which a value obtained by subtracting the first offset value from the second offset value is negative.
Inventors:
ITO YOSHIHIRO (JP)
Application Number:
PCT/JP2018/030842
Publication Date:
March 14, 2019
Filing Date:
August 21, 2018
Export Citation:
Assignee:
MURATA MANUFACTURING CO (JP)
International Classes:
G01B7/00; G01F23/62
Domestic Patent References:
| WO2016163171A1 | 2016-10-13 |
Foreign References:
| JP2002022403A | 2002-01-23 | |||
| JP2010156686A | 2010-07-15 | |||
| JP2012042259A | 2012-03-01 |
Attorney, Agent or Firm:
FUKAMI PATENT OFFICE, P.C. (JP)
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