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    Artificial skin and elastic strain sensor
    2.
    发明授权
    Artificial skin and elastic strain sensor 有权

    公开(公告)号：US10527507B2

    公开(公告)日：2020-01-07

    申请号：US15823030

    申请日：2017-11-27

    Applicant: President and Fellows of Harvard College

    Inventor： Robert J. Wood ,  Yong-Lae Park ,  Carmel S. Majidi ,  Bor-rong Chen ,  Leia Stirling ,  Conor James Walsh ,  Radhika Nagpal ,  Diana Young ,  Yigit Menguc

    IPC: G01L1/22 ,  B25J13/08 ,  G06F3/01 ,  A61B5/103 ,  A61B5/11 ,  A61F2/10 ,  A43B13/20 ,  A43B23/02 ,  A61B5/00

    Abstract: 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.

    ARTIFICIAL SKIN AND ELASTIC STRAIN SENSOR
    5.
    发明申请
    ARTIFICIAL SKIN AND ELASTIC STRAIN SENSOR 审中-公开

    公开(公告)号：US20180143091A1

    公开(公告)日：2018-05-24

    申请号：US15823030

    申请日：2017-11-27

    Applicant: President and Fellows of Harvard College

    Inventor： Robert J. Wood ,  Yong-Lae Park ,  Carmel S. Majidi ,  Bor-rong Chen ,  Leia Stirling ,  Conor James Walsh ,  Radhika Nagpal ,  Diana Young ,  Yigit Menguc

    IPC: G01L1/22 ,  A43B23/02 ,  A61B5/103 ,  B25J13/08 ,  A61B5/11 ,  A43B13/20 ,  G06F3/01 ,  A61F2/10 ,  A61B5/00

    Abstract: 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.

    PRINTED STRETCHABLE STRAIN SENSOR
    6.
    发明申请
    PRINTED STRETCHABLE STRAIN SENSOR 审中-公开
    印刷可拉伸应变传感器

    公开(公告)号：US20160290880A1

    公开(公告)日：2016-10-06

    申请号：US15036937

    申请日：2014-11-17

    Applicant: PRESIDENT AND FELLOWS OF HARVARD COLLEGE

    Inventor： Jennifer A. Lewis ,  Joseph T. Muth ,  Daniel M. Vogt ,  Ryan L. Truby ,  Yigit Menguc ,  David B. Kolesky ,  Robert J. Wood

    IPC: G01L1/22

    CPC classification number: G01L1/2287 ,  G01L1/18 ,  G01L1/20 ,  G06F3/014

    Abstract: A printed stretchable strain sensor comprises a seamless elastomeric body and a strain-sensitive conductive structure embedded in the seamless elastomeric body. The strain-sensitive conductive structure comprises one or more conductive filaments arranged in a continuous pattern. A method of printing a stretchable strain sensor comprises depositing one or more conductive filaments in a predetermined continuous pattern into or onto a support matrix. After the depositing, the support matrix is cured to embed a strain-sensitive conductive structure in a seamless elastomeric body.

    Abstract translation: 印刷的可拉伸应变传感器包括无缝弹性体和嵌入无缝弹性体中的应变敏感导电结构。 应变敏感导电结构包括以连续图案布置的一个或多个导电细丝。 打印可拉伸应变传感器的方法包括将预定连续图案中的一个或多个导电细丝沉积到载体矩阵中或载体上。 在沉积之后，支撑基体被固化以将应变敏感导电结构嵌入到无缝弹性体中。

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