CPC G01R 29/105 (2013.01) | 18 Claims |
1. An electromagnetic stirrer comprising:
a shaft body extending in a first direction; and
a first stirring blade and a second stirring blade on the shaft body,
wherein
the first stirring blade and the second stirring blade are aligned from a reference position of the shaft body in the first direction in order of the first stirring blade and the second stirring blade,
a shape of the first stirring blade and a shape of the second stirring blade are similar to each other,
a size of the first stirring blade is different from a size of the second stirring blade, and
a ratio between a first distance from the reference position to a position determined in accordance with the shaft body and the first stirring blade, among distances in the first direction, and a second distance from the reference position to a position determined in accordance with the shaft body and the second stirring blade, among the distances in the first direction, is the same as a similarity ratio between the first stirring blade and the second stirring blade.
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