| 摘要 |
PURPOSE:To enhance measuring accuracy and durability, by a method wherein copper plating is applied to a cylindrical member and a magnetic body and, after solder plating is applied to both of them, the magnetic body is wound around the cylindrical member to fix both of them by solder under a specific condition while the entire surface of the magnetic body is pressurized uniformly. CONSTITUTION:After copper plating 20 is applied to the cylindrical part 18 of a cylindrical member, solder plating 22 is applied thereon. The copper plating 20 is also applied to an amorphous magnetic thin body 14 and, thereafter, the solder plating 22 is applied thereto. Subsequently, solder plated surfaces are opposed to each other and the amorphous membrane magnetic body 14 formed on the cylindrical member 12 in an almost arrow shape is wound around the cylindrical member in a single layer so that the triangle projection thereof is penetrated in the triangular recessed part thereof. Subsequently, a wide heat resistant rubber band is applied to the wound part and the whole is heated to 280-300 deg.C for 5-10min in a high temp. tank 26. Next, the whole is taken out of the tank and the rubber band 24 is detached in a cooled state. By this method, the magnetic body is applied to the cylindrical member so as to minimize the gap therebetween and the enhancement of measuring accuracy and durability is attained. |
