Embodiments relate to a torsion sensor device which measures a degree of torsion of a measurement object by using a fiber Bragg gratings (FBG) sensor, the sensor device comprising: an FBG sensor including a sensing unit formed in one section of an elongated optical fiber; and a fixing device for fixing and supporting the FBG sensor to cause displacement of the FBG sensor according to motion of the measurement object, wherein the fixing device includes a bending prevention member to enable the sensing unit to have torsion displacement without bending displacement, according to the motion of the measurement object.

The present disclosure presents a visuo-haptic sensor, which is based on a passive, deformable element whose deformation is observed by a camera. In particular, the improved simplified sensor may determine the force and/or torque applied to a point of the sensor in multiple spatial dimensions.

A component has an integrated sensor device for an optical, multi-axis measurement of a force applied to the component. The component includes a cavity and a first support element having one or more first optical elements and a second support element having one or more second optical elements. The first support element and the second support element are formed in the cavity and partially inserted into the component. A transmission device generates at least two beams in independent directions when connected to a power source. The beams pass through the cavity between the first optical elements and the second optical elements. The first optical elements and the second optical elements are adapted to generate information about a relative positional change of the first support element with respect to the second support element based on the at least two beams. The transmission device provides the information for measuring the force application.

The invention relates to a torque sensor (1000; 1100) having a base body (1001; 1101) which extends in a radial direction (Y) of the base body from an annular inner flange (1003; 1103) having first force application points (1005; 1105), via a mechanically weakened sensor portion (1007; 1107) equipped with measurement transducers (10, 20) which generate output signals, to an annular outer flange (1009; 1109) having second force application points (1011; 1111), wherein a rubber-elastic sealing membrane (1031; 1131) arranged axially between the outer flange (1009; 1109) and the inner flange (1003; 1103) covers the mechanically weakened sensor portion (1007; 1107) in a fluid-tight manner.

Embodiments relate to a torsion sensor device which measures a degree of torsion of a measurement object by using a fiber Bragg gratings (FBG) sensor, the sensor device comprising: an FBG sensor including a sensing unit formed in one section of an elongated optical fiber; and a fixing device for fixing and supporting the FBG sensor to cause displacement of the FBG sensor according to motion of the measurement object, wherein the fixing device includes a bending prevention member to enable the sensing unit to have torsion displacement without bending displacement, according to the motion of the measurement object.

A prosthetic or orthotic device can include at least one device portion and a joint portion for providing for the at least one device portion to pivot between flexion and extension movements relative to another adjacent device portion or an adjacent limb segment of a user. In some embodiments, a prosthetic or orthotic device can include a compliant transmission assembly in operational communication with the joint portion. The compliant transmission assembly can include a compliant member and a pivot. The pivot can be interposed between the compliant member and the joint portion. In some embodiments, the compliant member absorbs energy when a torque is applied.

A torque detection device includes a first portion, a second portion disposed inside the first portion, and a connecting portion configured to link the first portion and the second portion. The first portion includes a first convex portion that projects toward the second portion. The second portion includes a second convex portion that projects toward the first portion. An inner surface of the first portion and a surface of the first convex portion link to the connecting portion. An outer surface of the second portion and a surface of the second convex portion link to the connecting portion. When torque is applied, the connecting portion deforms, and the first portion and the second portion are displaced relative to each other.

An example device includes an inner element, an outer surrounding element, and a plurality of connecting flexural elements coupled between the inner element and the outer surrounding element. The inner element has a plurality of reflective surface areas that are configured to reflect light to a sensor. The outer surrounding element surrounds the inner element. The plurality of connecting flexural elements allow the inner element to move relative to the outer surrounding element.

An example device includes an inner element, an outer surrounding element, and a plurality of connecting flexural elements coupled between the inner element and the outer surrounding element. The inner element has a plurality of reflective surface areas that are configured to reflect light to a sensor. The outer surrounding element surrounds the inner element. The plurality of connecting flexural elements allow the inner element to move relative to the outer surrounding element.

An example device includes an inner element, an outer surrounding element, and a plurality of connecting flexural elements coupled between the inner element and the outer surrounding element. The inner element has a plurality of reflective surface areas that are configured to reflect light to a sensor. The outer surrounding element surrounds the inner element. The plurality of connecting flexural elements allow the inner element to move relative to the outer surrounding element.