MAGNETIC FLUX TRANSMISSION COMPOSITE MAGNETIC PARTS, PRODUCTION OF MAGNETIC FLUX TRANSMISSION COMPOSITE MAGNETIC PARTS, AND MAGNETIC SENSOR DEVICE

摘要

PURPOSE: To decrease the manufacturing manhour of composite magnetic parts by improving a physical property of the part opposed to a magnetic sensor and forming integrally a non-magnetic area for magnetic flux transmission. ;CONSTITUTION: The magnetic flux transmission composite magnetic parts are constituted by forming integrally a non-magnetic area 2 for magnetic flux transmission by reforming a physical property of the part opposed to at least a magnetic sensor 6 by a magnetic member arranged between an output member 5 for outputting a magnetic signal, and the magnetic sensor 6 which is opposed to the output member 5 and detects the magnetic signal. At the time of its manufacture, a non-magnetic area 2 is formed by irradiating the part opposed to the magnetic sensor 6 of an iron compound magnetic material member with a laser, while adding at least Ni. In such a way, since the non-magnetic material is arranged in the part opposed to a conventional magnetic sensor, a product is finished more satisfactorily than joining to other soft magnetic material, and high strength can be obtained.;COPYRIGHT: (C)1994,JPO&Japio