MEMS fluidic actuator
    1.
    发明授权
    MEMS fluidic actuator 有权
    MEMS流体致动器

    公开(公告)号:US07246524B1

    公开(公告)日:2007-07-24

    申请号:US11120843

    申请日:2005-05-02

    IPC分类号: G01L7/08

    摘要: The present invention comprises a novel, lightweight, massively parallel device comprising microelectromechanical (MEMS) fluidic actuators, to reconfigure the profile, of a surface. Each microfluidic actuator comprises an independent bladder that can act as both a sensor and an actuator. A MEMS sensor, and a MEMS valve within each microfluidic actuator, operate cooperatively to monitor the fluid within each bladder, and regulate the flow of the fluid entering and exiting each bladder. When adjacently spaced in a array, microfluidic actuators can create arbitrary surface profiles in response to a change in the operating environment of the surface. In an embodiment of the invention, the profile of an airfoil is controlled by independent extension and contraction of a plurality of actuators, that operate to displace a compliant cover.

    摘要翻译: 本发明包括一种新颖的,重量轻的大规模并行装置,其包括微机电(MEMS)流体致动器,以重新配置表面。 每个微流体致动器包括可以充当传感器和致动器两者的独立囊。 每个微流体致动器内的MEMS传感器和MEMS阀协同操作以监测每个气囊内的流体,并且调节进入和离开每个气囊的流体的流动。 当阵列相邻间隔时,微流体致动器可以响应于表面的操作环境的变化而产生任意的表面轮廓。 在本发明的一个实施例中,翼型件的轮廓由多个致动器的独立的伸缩来控制,这些致动器用于移动柔性盖。

    Piston-driven fluid-ejection apparatus
    3.
    发明授权
    Piston-driven fluid-ejection apparatus 失效
    活塞驱动的流体喷射装置

    公开(公告)号:US06886916B1

    公开(公告)日:2005-05-03

    申请号:US10600008

    申请日:2003-06-18

    IPC分类号: B41J2/14 B41J2/04

    CPC分类号: B41J2/14314

    摘要: A surface-micromachined fluid-ejection apparatus is disclosed which utilizes a piston to provide for the ejection of jets or drops of a fluid (e.g. for ink-jet printing). The piston, which is located at least partially inside a fluid reservoir, is moveable into a cylindrical fluid-ejection chamber connected to the reservoir by a microelectromechanical (MEM) actuator which is located outside the reservoir. In this way, the reservoir and fluid-ejection chamber can be maintained as electric-field-free regions thereby allowing the apparatus to be used with fluids that are electrically conductive or which may react or break down in the presence of a high electric field. The MEM actuator can comprise either an electrostatic actuator or a thermal actuator.

    摘要翻译: 公开了一种表面微机械流体喷射装置,其利用活塞来提供喷射或液滴的喷射(例如用于喷墨打印)。 至少部分地位于流体储存器内部的活塞可通过位于储存器外部的微机电(MEM)致动器移动到连接到储存器的圆柱形流体排出室中。 以这种方式,储存器和流体喷射室可以保持为无电场区域,从而允许该装置与导电的流体一起使用或者可能在存在高电场的情况下反应或分解。 MEM致动器可以包括静电致动器或热致动器。

    Micromachined fluid ejector systems and methods
    6.
    发明授权
    Micromachined fluid ejector systems and methods 有权
    微加工流体喷射器系统和方法

    公开(公告)号:US06367915B1

    公开(公告)日:2002-04-09

    申请号:US09722331

    申请日:2000-11-28

    IPC分类号: B41J204

    CPC分类号: B41J2/14314

    摘要: An electrostatic microelectromechanical system (MEMS) based fluid ejector comprises a movable piston structure and a stationary faceplate. A fluid chamber is defined between the piston structure and a substrate. The piston structure 110 may be resiliently mounted on the substrate by one or more spring elements. A fluid to be ejected is supplied in the fluid chamber from a fluid reservoir through a fluid refill hole formed in the substrate. The faceplate includes a nozzle hole through which a fluid jet or drop is ejected. In various exemplary embodiments, the piston structure moves towards the faceplate by electrostatic attraction between the piston structure and the faceplate. As a result of the movement of the piston structure, a portion of the fluid between the piston structure and the faceplate is forced out of the nozzle hole, forming a jet or drop of the fluid.

    摘要翻译: 基于静电微机电系统(MEMS)的流体喷射器包括可移动活塞结构和固定面板。 流体室限定在活塞结构和基底之间。 活塞结构110可以通过一个或多个弹簧元件弹性地安装在基底上。 待流出的液体从流体储存器通过形成在衬底中的流体填充孔供应到流体室中。 面板包括喷嘴孔,流体喷射或液滴通过喷嘴孔排出。 在各种示例性实施例中,活塞结构通过活塞结构和面板之间的静电吸引而向面板移动。 作为活塞结构的运动的结果,活塞结构和面板之间的一部分流体被迫从喷嘴孔流出,形成流体的喷射或液滴。

    Ion chamber based neutron detectors
    7.
    发明授权
    Ion chamber based neutron detectors 有权
    基于离子室的中子探测器

    公开(公告)号:US08912502B2

    公开(公告)日:2014-12-16

    申请号:US13559370

    申请日:2012-07-26

    IPC分类号: G01T3/00 H01J47/02

    CPC分类号: G01T3/008 G01T3/00 H01J47/02

    摘要: A neutron detector with monolithically integrated readout circuitry, including: a bonded semiconductor die; an ion chamber formed in the bonded semiconductor die; a first electrode and a second electrode formed in the ion chamber; a neutron absorbing material filling the ion chamber; and the readout circuitry which is electrically coupled to the first and second electrodes. The bonded semiconductor die includes an etched semiconductor substrate bonded to an active semiconductor substrate. The readout circuitry is formed in a portion of the active semiconductor substrate. The ion chamber has a substantially planar first surface on which the first electrode is formed and a substantially planar second surface, parallel to the first surface, on which the second electrode is formed. The distance between the first electrode and the second electrode may be equal to or less than the 50% attenuation length for neutrons in the neutron absorbing material filling the ion chamber.

    摘要翻译: 一种具有单片集成读出电路的中子检测器,包括:键合半导体管芯; 形成在所述键合半导体管芯中的离子室; 形成在所述离子室中的第一电极和第二电极; 填充离子室的中子吸收材料; 以及电耦合到第一和第二电极的读出电路。 键合的半导体管芯包括结合到有源半导体衬底的蚀刻半导体衬底。 读出电路形成在有源半导体衬底的一部分中。 离子室具有基本上平面的第一表面,第一电极形成在其上,并且平行于第一表面的基本平坦的第二表面,在其上形成第二电极。 第一电极和第二电极之间的距离可以等于或小于填充离子室的中子吸收材料中的中子的50%衰减长度。