US 11,719,587 B2
Sensing device
Jong Yeop Yang, Seoul (KR)
Assigned to LG INNOTEK CO., LTD., Seoul (KR)
Appl. No. 17/270,139
Filed by LG INNOTEK CO., LTD., Seoul (KR)
PCT Filed Aug. 22, 2019, PCT No. PCT/KR2019/010681
§ 371(c)(1), (2) Date Feb. 22, 2021,
PCT Pub. No. WO2020/040562, PCT Pub. Date Feb. 27, 2020.
Claims priority of application No. 10-2018-0098775 (KR), filed on Aug. 23, 2018.
Prior Publication US 2021/0239551 A1, Aug. 5, 2021
Int. Cl. G01L 3/10 (2006.01); G01B 7/30 (2006.01); G01L 5/22 (2006.01)
CPC G01L 3/101 (2013.01) [G01B 7/30 (2013.01); G01L 5/221 (2013.01)] 9 Claims
OG exemplary drawing
 
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.