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US 11,690,415 B2Granted
Soft sensor and manufacturing method therefor, and hand-wearable device having soft sensor and manufacturing method therefor
AssigneeFeel the Same, Inc.
InventorsJoon Bum Bae, Su In Kim, Woo Keun Park, Da Hee Jeong, Jin Hyeok Oh
Life of this patent
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Abstract
A soft sensor includes an elastic sheet, which includes a first elastic layer and a second elastic layer facing each other, and a sensor unit formed by printing a predetermined conductive liquid metal between the first elastic layer and the second elastic layer. A hand-wearable device may include at least one soft sensor, wherein the hand-wearable device has a shape corresponding to at least a portion of a shape of a hand, and the soft sensor is located at a position corresponding to at least some joints of the hand.
Claims8
A soft sensor comprising:
- a first elastic layer;
- a sensor unit formed by three-dimensional (3D) printing a conductive liquid metal including eutectic gallium-indium alloy (EGaIn), on an upper side of the first elastic layer;
- and
- a second elastic layer formed to cover the first elastic layer and the sensor unit, on the upper side of the first elastic layer and an upper side of the sensor unit,
- wherein the conductive liquid metal retains a liquid state thereof at room temperature and has conductivity,
- a surface tension of the second elastic layer is smaller than a surface tension of the sensor unit,
- the sensor unit retains a liquid state between the first elastic layer and the second elastic layer even after the second elastic layer is formed, and
- a shape, a size, and a performance of the sensor unit are adjusted depending on a combination of an inner diameter of a nozzle, an injecting pressure of the nozzle, a distance between the nozzle and the upper surface of the first elastic layer, and a transportation rate of the nozzle.
5 more elements
Dependencies are inferred from the claim text.