US 12,216,012 B2
Sensor and power transmission device
Daisuke Takagi, Nagaokakyo (JP)
Assigned to Nidec-Shimpo Corporation, Kyoto (JP)
Filed by Nidec-Shimpo Corporation, Nagaokakyo (JP)
Filed on Jun. 22, 2022, as Appl. No. 17/846,140.
Claims priority of application No. 2021-103999 (JP), filed on Jun. 23, 2021.
Prior Publication US 2022/0412819 A1, Dec. 29, 2022
Int. Cl. G01L 1/22 (2006.01); G01B 7/16 (2006.01)
CPC G01L 1/2231 (2013.01) [G01B 7/18 (2013.01); G01L 1/2287 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A sensor comprising:
a base extending in a direction intersecting with a central axis;
first resistance lines arrayed in a circumferential direction on a surface of the base; and
second resistance lines arranged concentrically with the first resistance lines and between the first resistance lines in the circumferential direction on the surface of the base; wherein
in at least one of the first resistance lines, a number of regions of the resistance line along the circumferential direction is one or less, and a number of regions of the resistance line along a radial direction is one or less; and
the base includes a rotation angle detection sensor to detect a rotation angle of rotational motion.