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    • 3. 发明申请
    • ARTIFICIAL SKIN AND ELASTIC STRAIN SENSOR
    • 人造皮肤和弹性应变传感器
    • WO2013044226A2
    • 2013-03-28
    • PCT/US2012056903
    • 2012-09-24
    • HARVARD COLLEGEWOOD ROBERT JPARK YONG-LAEMAJIDI CARMEL SCHEN BOR-RONGSTIRLING LEIAWALSH CONNOR JAMESNAGPAL RADHIKAYOUNG DIANAMENGUC YIGIT
    • WOOD ROBERT JPARK YONG-LAEMAJIDI CARMEL SCHEN BOR-RONGSTIRLING LEIAWALSH CONNOR JAMESNAGPAL RADHIKAYOUNG DIANAMENGUC YIGIT
    • G01L5/00A61L27/50B25J19/02B81B3/00G01L9/00
    • G01L1/22A43B13/203A43B23/029A61B5/1036A61B5/112A61B5/6807A61B2562/0247A61B2562/0261A61F2/105B25J13/08G01L1/2287G06F3/011G06F3/014
    • An elastic strain sensor can be incorporated into an artificial skin that can sense flexing by the underlying support structure of the skin to detect and track motion of the support structure. The unidirectional elastic strain sensor can be formed by filling two or more channels in an elastic substrate material with a conductive liquid. At the ends of the channels, a loop port connects the channels to form a serpentine channel. The channels extend along the direction of strain and the loop portions have sufficiently large cross-sectional area in the direction transverse to the direction of strain that the sensor is unidirectional. The resistance is measured at the ends of the serpentine channel and can be used to determine the strain on the sensor. Additional channels can be added to increase the sensitivity of the sensor. The sensors can be stacked on top of each other to increase the sensitivity of the sensor. In other embodiments, two sensors oriented in different directions can be stacked on top of each other and bonded together to form a bidirectional sensor. A third sensor formed by in the shape of a spiral or concentric rings can be stacked on top and used to sense contact or pressure, forming a three dimensional sensor. The three dimensional sensor can be incorporated into an artificial skin to provide advanced sensing.
    • 可以将弹性应变传感器结合到人造皮肤中,其可以感测由皮肤的下面的支撑结构弯曲以检测和跟踪支撑结构的运动。 单向弹性应变传感器可以通过用导电液体填充弹性基底材料中的两个或更多个通道来形成。 在通道的末端,环形端口连接通道以形成蛇形通道。 通道沿着应变方向延伸,并且环部分在横向于传感器单向的应变方向的方向上具有足够大的横截面面积。 在蛇形通道的端部测量电阻,可用于确定传感器上的应变。 可以添加其他通道以增加传感器的灵敏度。 传感器可以堆叠在彼此的顶部,以增加传感器的灵敏度。 在其他实施例中,可以将在不同方向上定向的两个传感器堆叠在彼此的顶部并结合在一起以形成双向传感器。 形成为螺旋形或同心圆形的第三传感器可以堆叠在顶部并用于感测接触或压力,形成三维传感器。 三维传感器可以并入人造皮肤中以提供先进的感测。