CPC G01L 3/101 (2013.01) [G01B 7/30 (2013.01); G01L 5/221 (2013.01)] | 9 Claims |
1. A sensing device comprising:
a stator including a stator tooth; and
a rotor including a magnet,
wherein the stator tooth includes a first stator tooth and a second stator tooth disposed inside the first stator tooth,
wherein the first stator tooth includes a plurality of first teeth, and
the second stator tooth includes a plurality of second teeth,
the magnet includes a first pole and a second pole,
the first tooth overlaps the second tooth in a radial direction from a center of the stator, and
a first angle formed between two ends of the first pole based on the center of the stator is the same as a second angle formed between two ends of the first tooth based on the center of the stator, and
wherein the first angle is the same as a third angle formed by two ends of the second tooth based on the center of the stator.
|