Invention Grant
- Patent Title: Method for measuring resistance of resistor connected with MR element in parallel
- Patent Title (中): 测量与MR元件并联电阻的电阻的方法
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Application No.: US12967492Application Date: 2010-12-14
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Publication No.: US08547091B2Publication Date: 2013-10-01
- Inventor: Takekazu Yamane , Naomichi Degawa
- Applicant: Takekazu Yamane , Naomichi Degawa
- Applicant Address: JP Tokyo
- Assignee: TDK Corporation
- Current Assignee: TDK Corporation
- Current Assignee Address: JP Tokyo
- Agency: Posz Law Group, PLC
- Main IPC: G01R33/02
- IPC: G01R33/02
Abstract:
A measuring method measuring a resistance of a resistor of a magnetic sensor that includes the resistor is provided. The method includes a step of measuring an output voltage of the magnetic sensor in an AC magnetic field, a step of measuring a first combined resistance of the MR element and the resistor in no magnetic field, a step of measuring a second combined resistance of the MR element and the resistor in a constant magnetic field of which a direction and strength are substantially the same as a magnetic field, a step of measuring a third combined resistance of the MR element and the resistor in another constant magnetic field of which a direction and strength are substantially the same as another magnetic field, and a step of calculating the resistance of the resistor based on the output voltage, the first, second and third combined resistance.
Public/Granted literature
- US20120146633A1 METHOD FOR MEASURING RESISTANCE OF RESISTOR CONNECTED WITH MR ELEMENT IN PARALLEL Public/Granted day:2012-06-14
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