Torque sensor
AssigneeNidec Copal Electronics Corporation
InventorTakayuki ENDO
Life of this patent
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Abstract
A torque sensor which can detect a torque with high accuracy is provided. First structure and second structure are connected by a plurality of third structures. First and second strain sensors are connected between the first structure and the second structure. Each of the first and second strain sensors includes a strain body connected between the first structure and the second structure and a plurality of sensor elements provided on the strain body. The sensor elements are disposed in a region of one side of each of the first structure and the second structure with respect to a longitudinal central portion of the strain body, and the region on the one side is a region where there is only a little difference in strain between along a torque direction of the strain body and a torque-excepted direction.
Claims5
A torque sensor comprising:
- a first structure;
- a second structure;
- a plurality of third structures connecting the first structure and the second structure;
- and
- at least one strain sensor connected between the first structure and the second structure;
- wherein
- the at least one strain sensor comprises a strain body connected between the first structure and the second structure and a plurality of sensor elements provided on the strain body, the plurality of sensor elements are disposed in a region of one side of each of the first structure and the second structure with respect to a longitudinal central portion of the strain body, and the region on the one side is a region where there is only a little difference in strain between along a torque direction of the strain body and a torque-excepted direction.
Dependencies are inferred from the claim text.