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US 9,869,539 B2Granted
Rotation angle and torsion angle sensor
AssigneeBourns, Inc.
InventorValeri Klimenko
Life of this patent
Estimating the term…
Abstract
The rotation angle and torsion angle sensor detects both the rotational position of a shaft and a torque applied to the shaft torque. The shaft a first shaft part and a second shaft part, which are interconnected by a torsion bar. A sensor disc is coupled via a rigid circumferentially and axially flexible membrane with the first shaft part. The sensor disc is coupled to a drive wheel via a coupling device, in such a way that the sensor disc is displaced in the axial direction upon relative rotation of the two shaft parts against each other, wherein the membrane bends in the axial direction.
Claims13
An angle of rotation and torsion angle sensor comprising:
- a first shaft part and a second shaft part connected to each other via a torsion bar, the first shaft part and the second shaft part aligned with one another along an axis, the axis defining an axial direction;
- a driven wheel connected to the second shaft part, the driven wheel engaged with a first sensor wheel and a second sensor wheel, the first sensor wheel and the second sensor wheel associated with a first sensor and a second sensor for detecting the rotational position;
- and
- a membrane circumferentially rigid and flexible in the axial direction, the membrane having a first terminal and a second terminal, the first terminal coupled directly or indirectly to the first shaft part and the second terminal connected with a sensor disc via a connecting device;
- wherein the sensor disc is coupled to the driven wheel via coupling elements, such that a relative rotation of the first shaft part and the second shaft part against one another causes an axial displacement of the sensor disc;
- and
- wherein a third sensor detects the axial position of the sensor disc.
4 more elements
A rotation angle and torsion angle sensor comprising:
- a first shaft part and a second shaft part, the first shaft part and the second shaft part connected to each other via a torsion bar, the first shaft part and the second shaft part aligned with one another along an axis, the axis defining an axial direction;
- a driven wheel connected to the second shaft part, the drive wheel rotatably engaged with a first sensor wheel and a second sensor wheel, the first sensor wheel associated with a first sensor and the second sensor wheel associated with a second sensor for detecting rotational position;
- a circumferentially rigid and axially moveable membrane, which is indirectly coupled through a driven wheel to a drive wheel, the drive wheel connected to the first shaft part;
- wherein the driven wheel is displaceable in the axial direction and is coupled to the first sensor wheel, such that upon relative rotation between the first shaft part and the second shaft part, the drive wheel is displaced, whereby a magnetic pin, fixedly connected to the drive wheel, is also displaced, the axial position of the magnetic pin detected by a third sensor.
1 more element
An angle of rotation and torsion angle sensor comprising:
- a first shaft and a second shaft connected to each other via a torsion bar, the first shaft part and the second shaft part aligned with one another along an axis, the axis defining an axial direction;
- a driven wheel connected to the second shaft, the driven wheel engaged with a first sensor wheel and a second sensor wheel;
- a first sensor configured to detect rotational position and associated with the first sensor wheel;
- a second sensor configured to detect rotational position and associated with the second sensor wheel;
- a membrane circumferentially rigid and flexible in the axial direction, the membrane having a first terminal and a second terminal, the first terminal coupled to the first shaft and the second terminal connected to a sensor disc;
- wherein the sensor disc is coupled to the driven wheel such that a relative rotation of the first shaft and the second shaft with respect to one another causes an axial displacement of the sensor disc;
- and
- a third sensor configured to detect an axial position of the sensor disc.
5 more elements
A rotation angle and torsion angle sensor comprising:
- a first shaft and a second shaft, the first shaft and the second shaft connected to each other via a torsion bar, the first shaft part and the second shaft part aligned with one another along an axis, the axis defining an axial direction;
- a driven wheel connected to the second shaft, the drive wheel rotatably engaged with a first sensor wheel and a second sensor wheel, the first sensor wheel associated with a first sensor for detecting rotational position and the second sensor wheel associated with a second sensor for detecting rotational position;
- a circumferentially-rigid and axially-moveable membrane indirectly coupled through a driven wheel to a drive wheel, the drive wheel connected to the first shaft;
- wherein the driven wheel is displaceable in the axial direction and is coupled to the first sensor wheel, such that upon relative rotation between the first shaft and the second shaft, the drive wheel is displaced, whereby a magnetic pin, fixedly connected to the drive wheel, is also displaced;
- and
- a third sensor configured to detect an axial position of the magnetic pin.
3 more elements
Dependencies are inferred from the claim text.