Title:
高精度測定可能な磁気センサ用感磁体の製造方法
Document Type and Number:
Japanese Patent JP6816445
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a manufacturing method of magnetic sensor magneto-sensitive material, capable of preventing the generation of abnormal noise in an output voltage and achieving higher accurate measurement in comparison with the conventional magneto-sensitive material.SOLUTION: There is provided a manufacturing method of a magneto-sensitive material applicable to a flux gate sensor that comprises a magneto-sensitive material including an amorphous wire for detecting magnetism and a detection coil around the magneto-sensitive material, and can measure strength of a magnetic field by magnetizing the magneto-sensitive material by AC current to detect a voltage generated in a detection coil according to the strength of an external magnetic field. The manufacturing method subjects an amorphous wire manufactured by an in-rotating liquid spinning method or a single roll liquid quenching method or the amorphous wires to finishing processing, and performs, to the amorphous wire thus manufactured, removal processing of a process-affected residual layer generated on the surface or in the vicinity of the amorphous wire under the condition that a cross sectional area decrease rate to the cross section of the wire before the removal processing is 1.0 to 75.0%.SELECTED DRAWING: Figure 3
Inventors:
Norihiko Hamada
Akihiro Shimode
Akihiro Shimode
Application Number:
JP2016206662A
Publication Date:
January 20, 2021
Filing Date:
October 21, 2016
Export Citation:
Assignee:
Aichi Steel Co., Ltd.
International Classes:
G01R33/02; B22D11/06; C22C1/00
Domestic Patent References:
| JP2010025619A | ||||
| JP1235213A |
Foreign References:
| WO2009119081A1 | ||||
| US20100231222 |