Displacement detection device and torque sensor
AssigneeFanuc Corporation
InventorKazuki Wakabayashi
Life of this patent
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Abstract
A displacement detection device and a torque sensor include a movable part that is connected to a first member and to a second member and that changes a gap along with displacement of the second member with respect to the first member in a prescribed direction; and a detection part (detection circuit) that, on the basis of the change in the gap detects displacement of the second member with respect to the first member in the prescribed direction, wherein the movable part is configured to make the amount of N change in the gap greater than the amount of displacement of the second member with respect to the first member in the prescribed direction.
Claims11
A displacement detection device configured to detect displacement of a second member relative to a first member in a predetermined direction, the displacement detection device comprising:
- a movable portion connected to the first member and the second member and configured to change a gap in accordance with the displacement of the second member relative to the first member in the predetermined direction;
- and
- a detection unit configured to detect the displacement of the second member relative to the first member in the predetermined direction, based on a change in the gap,
- wherein
- the movable portion is configured
- to make an amount of the change in the gap larger than an amount of the displacement of the second member relative to the first member in the predetermined direction,
- to make the gap larger as the first member and the second member separate from each other, and
- to make the gap smaller as the first member and the second member come close to each other.
Dependencies are inferred from the claim text.