| 摘要 |
There is provided a method of manufacturing a magnetic field generator (10) that includes a pair of plate yokes (12a), (12b) which are opposed to each other, with their opposing faces provided with respective permanent magnet assemblies (14a), (14b) which have faces opposing to each other, to which pole pieces (16a), (16b) are fixed respectively, and include permanent magnets (18). The permanent magnets (18), (28) include R—Fe—B magnets. During manufacturing, the assembled magnetic field generator (10) is heated in its entirety at a temperature not lower than 40° C. and not higher than 70° C., whereby the R—Fe—B magnets are magnetized to a magnetization rate not smaller than 80% and not greater than 99.9%. |
