Segmented Alphanumeric Display Using Electromagnetic Microactuators

    公开(公告)号:US20220375366A1

    公开(公告)日:2022-11-24

    申请号:US17764234

    申请日:2020-10-01

    摘要: A segmented alphanumeric includes a display panel, at least one linearly actuated platform, and display elements. Each display element passes through an orifice in the display panel to generate protruded and segmented alphanumeric characters in combination with other extended display elements. A microactuator array is displaceable by the linearly actuated platform and includes electromagnets and rotors. Each rotor is mounted for rotation in at least one direction between an active state and an inactive state by at least one associated electromagnet. Each display element is displaced through the orifice by actuation of the linearly actuated platform via a respective rotor when the respective rotor is rotated into its active state and to evade displacement by the rotor when the rotor is rotated into its inactive state.

    Ultra-sensitive compliant strain sensors

    公开(公告)号:US11422045B2

    公开(公告)日:2022-08-23

    申请号:US17056357

    申请日:2019-05-20

    IPC分类号: G01L1/22 G01L5/1627 G01B7/16

    摘要: A strain sensor comprising a conductive member having a plurality of elements arranged adjacent to one another, and a non-conductive and elastically deformable material encapsulating the conductive member, wherein, in an equilibrium state, compressive forces cause at least one of the plurality of elements to contact at least a portion of an adjacent element, and wherein, when a strain is applied, a resulting elastic deformation causes at least one of the plurality of elements to space apart from an adjacent element such that the contacted portion decreases or is eliminated. A multi-axis force sensor comprising a sensing array comprising at least two planar sensors arranged radially on a planar substrate in antagonistic pairs, and a compressible member positioned between the substrate and a central portion of the sensing array, the compressible member acting to displace the central portion of the sensing array away from the substrate.

    Systems and methods for fabricating 3D soft microstructures

    公开(公告)号:US11014804B2

    公开(公告)日:2021-05-25

    申请号:US16493746

    申请日:2018-03-14

    IPC分类号: B81B3/00 B81C1/00 B33Y80/00

    摘要: Systems and methods for fabricating 3D soft microstructures. The system comprises injecting a pressurized, curable liquid into certain structural layers induces folding and allows the 2D structures to reconfigure into a 3D form In addition to the injection of a curable liquid that permanently reconfigures the structure of the system, in an embodiment this method also allows for the injection of other liquids into certain actuator layers that enable motion in certain portions of the system Furthermore, the system allows for handling of colored fluids that are passed to visualization layers. The method of creating such a system depends on taking advantage of laser machining of the individual layers to influence the behavior of how different portions bend and move.

    SYSTEMS AND METHODS FOR FABRICATING 3D SOFT MICROSTRUCTURES

    公开(公告)号:US20200079643A1

    公开(公告)日:2020-03-12

    申请号:US16493746

    申请日:2018-03-14

    IPC分类号: B81B3/00 B81C1/00

    摘要: Systems and methods for fabricating 3D soft microstructures. The system comprises injecting a pressurized, curable liquid into certain structural layers induces folding and allows the 2D structures to reconfigure into a 3D form In addition to the injection of a curable liquid that permanently reconfigures the structure of the system, in an embodiment this method also allows for the injection of other liquids into certain actuator layers that enable motion in certain portions of the system Furthermore, the system allows for handling of colored fluids that are passed to visualization layers. The method of creating such a system depends on taking advantage of laser machining of the individual layers to influence the behavior of how different portions bend and move.

    Modular, millimeter-scale, light-intensity-based force sensing system

    公开(公告)号:US10105035B2

    公开(公告)日:2018-10-23

    申请号:US15183501

    申请日:2016-06-15

    摘要: A light-intensity-based forced sensor comprises a Sarrus linkage, a biasing mechanism, a light emitter, and a light detector includes a first plate, a second plate, and at least one collapsible linkage pivotably coupled to both the first and the second plates. The biasing mechanism biases the collapsible linkage toward an extended configuration. The light emitter is coupled with and displaceable with the first plate; and the light detector is coupled with and displaceable with the second plate and configured to receive light emitted from the light emitter and generate an electrical signal in response to light received from the light emitter, wherein the generated electrical signal provides an indication of the distance between the first plate and the second plate. The sensor can be distally mounted on, e.g., an endoscope to provide haptic feedback at the distal end of the endoscope.

    MULTI-AXIS FORCE SENSING SOFT ARTIFICIAL SKIN
    8.
    发明申请
    MULTI-AXIS FORCE SENSING SOFT ARTIFICIAL SKIN 有权
    多轴感测软人造皮肤

    公开(公告)号:US20150292968A1

    公开(公告)日:2015-10-15

    申请号:US14438792

    申请日:2013-10-22

    IPC分类号: G01L5/16 G01L1/02 G01L1/20

    摘要: A sensor including a layer having viscoelastic properties, the layer comprising a void, the void filled with a fluid; and optionally, a more rigid sensing element embedded within the layer. When a force is applied to a surface of the sensor, the shape of the void changes, causing the electrical resistance of the fluid in the void to change. When included, the more rigid sensing element can bear upon the void to cause the electrical resistance of the fluid in the void to change. A direction and intensity of the force can be determined by measuring the change of the electrical resistance of different voids positioned about the sensing element. The layer can be an elastomer, preferably silicone rubber. The fluid can be a conductive liquid, preferably Eutectic Gallium Indium. The sensing element can be plastic and can have a “Joystick” shape. The voids can take the form of channels or microchannels having a predefined pattern and/or shape.

    摘要翻译: 一种传感器,包括具有粘弹性的层,所述层包括空隙,填充有流体的空隙; 并且可选地,嵌入该层内的更刚性的感测元件。 当向传感器的表面施加力时,空隙的形状变化,导致空隙中的流体的电阻改变。 当包括时,更刚性的传感元件可以承受空隙以使空隙中的流体的电阻改变。 力的方向和强度可以通过测量位于感测元件周围的不同空隙的电阻的变化来确定。 该层可以是弹性体,优选硅橡胶。 流体可以是导电液体,优选共晶镓铟。 传感元件可以是塑料,并且可以具有“操纵杆”的形状。 空隙可以采取具有预定图案和/或形状的通道或微通道的形式。

    Ultra-sensitive compliant strain sensors

    公开(公告)号:US11761832B2

    公开(公告)日:2023-09-19

    申请号:US17860235

    申请日:2022-07-08

    IPC分类号: G01L1/22 G01L5/1627 G01B7/16

    摘要: A strain sensor comprising a conductive member having a plurality of elements arranged adjacent to one another, and a non-conductive and elastically deformable material encapsulating the conductive member, wherein, in an equilibrium state, compressive forces cause at least one of the plurality of elements to contact at least a portion of an adjacent element, and wherein, when a strain is applied, a resulting elastic deformation causes at least one of the plurality of elements to space apart from an adjacent element such that the contacted portion decreases or is eliminated. A multi-axis force sensor comprising a sensing array comprising at least two planar sensors arranged radially on a planar substrate in antagonistic pairs, and a compressible member positioned between the substrate and a central portion of the sensing array, the compressible member acting to displace the central portion of the sensing array away from the substrate.