Torque sensor having detection element which detects elastic deformation by exertion of torque to be detected
US11703402B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 16, 2021 |
| Grant date | Jul 18, 2023 |
| Priority date | — |
| Expiry date | Aug 25, 2041 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01L3/1457
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A torque sensor for detecting torque around a predetermined rotation axis, including: a first support body, a second support body, a detection part which connects the first support body and the second support body and which undergoes elastic deformation by exertion of torque to be detected, a detection element which detects elastic deformation occurring at the detection part, and a detection circuit which outputs an electric signal indicating torque around the rotation axis exerted on one of (i) the first support body in a state that a load is applied to the second support body, and (ii) the second support body in a state that a load is applied to the first support body. The detection element includes a capacitive element which includes a displacement electrode fixed to a displacement part and a fixing electrode opposing the displacement electrode. The detection circuit outputs the electric signal indicating the exerted torque based on fluctuation in capacitance value of the capacitive element.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.