| 摘要 |
Applicable in the manufacturing process in magnetic field sensor head cores (1) comprising a core of amorphous ferromagnetic material on which is placed directly a first winding that forms the drive coil, and which also includes a second and third windings that constitute the sensor and compensating coils, respectively, both wound over a cylinder inside which is located the assembly formed by the core and the drive coil. A first electric current (2) is applied to the core of this sensor head (1) , which heats up due to its electrical losses. In addition, a second alternating electric current (3) is applied to one of the coils that surrounds the core and which acts as a magnetizing coil; an analysis (4) is made of the signal induced in another of the coils that surround the core and that acts as detector coil and, finally, a decision (5) is taken on the process ending (6) when the level of the signal induced in the detector coil falls down significantly. <IMAGE> |
