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    Sensor array system
    2.
    发明授权
    Sensor array system 有权
    传感器阵列系统

    公开(公告)号：US06399939B1

    公开(公告)日：2002-06-04

    申请号：US09592884

    申请日：2000-06-13

    申请人： Mannur J. Sundaresan ,  Anindya Ghoshal ,  Mark J. Schulz

    发明人： Mannur J. Sundaresan ,  Anindya Ghoshal ,  Mark J. Schulz

    IPC分类号： G01N2100

    CPC分类号： G10K11/26 ,  G01H1/12 ,  G01N29/14 ,  G01N29/36 ,  G01N29/42 ,  G01N2291/015 ,  G01N2291/0231 ,  G01N2291/0427 ,  G01N2291/106 ,  Y10S73/04

    摘要： A sensor array for nondestructively monitoring a structure to detect a critical event. The sensor array includes a plurality of discrete sensor nodes, each of the discrete sensor nodes producing an electrical signal in response to a structural event. In the preferred embodiment, the sensor nodes include a plurality of piezoceramic fibers arranged in a planar array in which the fibers are aligned substantially parallel to each other, each of the fibers having a plurality of polarized regions that are substantially oriented according to their polarity in either a series, parallel, or combined arrangement of series and parallel orientations, and an electrical interface connecting the plurality of polarized regions of each fiber in series with one another. A signal adder receives and combines the electrical signals from each of the discrete sensor nodes to form a single sensor array output signal. In the preferred embodiment, the electrical interface further includes at least one electrical bus substantially aligned with the fibers and a signal processing module for receiving and processing the single sensor output signal. The signal processing module is linked through the digital data bus to a central processing unit. The plurality of discrete sensor nodes may further be divided into discrete subgroups, each located at a different structural location to provide a degree of sensing and determining the location of the structural event. In the preferred embodiment, the discrete sensor nodes are electrically connected in series, thereby forming a continuous series connection between each of the discrete sensor nodes to improve the likelihood that a critical structural event will be detected.

    摘要翻译： 用于非破坏性地监视结构以检测关键事件的传感器阵列。 传感器阵列包括多个离散传感器节点，每个离散传感器节点响应于结构事件产生电信号。 在优选实施例中，传感器节点包括布置在平面阵列中的多个压电陶瓷纤维，其中纤维基本上彼此平行地排列，每个光纤具有多个偏振区域，其基于其极性基本上取向 串联和并联取向的串联，并联或组合布置，以及将每个光纤的多个偏振区域彼此串联连接的电接口。 信号加法器接收并组合来自每个离散传感器节点的电信号以形成单个传感器阵列输出信号。 在优选实施例中，电接口还包括与光纤基本对准的至少一个电总线和用于接收和处理单个传感器输出信号的信号处理模块。 信号处理模块通过数字数据总线连接到中央处理单元。 多个离散传感器节点还可以被划分成离散子组，每个分组位于不同的结构位置以提供一定程度的感测并确定结构事件的位置。 在优选实施例中，离散传感器节点串联电连接，从而在每个离散传感器节点之间形成连续的串联连接，以提高检测到关键结构事件的可能性。

    COMPOSITE CATALYST AND METHOD FOR MANUFACTURING CARBON NANOSTRUCTURED MATERIALS
    7.
    发明申请
    COMPOSITE CATALYST AND METHOD FOR MANUFACTURING CARBON NANOSTRUCTURED MATERIALS 有权
    复合催化剂及制备碳纳米管材料的方法

    公开(公告)号：US20140295098A1

    公开(公告)日：2014-10-02

    申请号：US14305403

    申请日：2014-06-16

    申请人： Vesselin N. SHANOV ,  Andrew Gorton ,  Yeo-Heung Yun ,  Mark J. Schulz

    发明人： Vesselin N. SHANOV ,  Andrew Gorton ,  Yeo-Heung Yun ,  Mark J. Schulz

    IPC分类号： C01B31/02

    CPC分类号： C01B32/162 ,  B01J21/185 ,  B01J23/40 ,  B01J23/63 ,  B01J23/74 ,  B01J23/83 ,  B01J35/0013 ,  B01J37/0217 ,  B01J37/0221 ,  B01J37/0226 ,  B01J37/0238 ,  B01J37/0244 ,  B01J37/08 ,  B01J37/088 ,  B01J37/348 ,  B01J37/349 ,  B82Y30/00 ,  B82Y40/00 ,  C01B2202/06 ,  C01B2202/08 ,  C01B2202/34 ,  D01F9/12 ,  D01F9/127 ,  D01F9/1273 ,  Y10S977/752

    摘要： A method of forming a carbon nanotube array substrate is disclosed. One embodiment comprises depositing a composite catalyst layer on the substrate, oxidizing the composite catalyst layer, reducing the oxidized composite catalyst layer, and growing the array on the composite catalyst layer. The composite catalyst layer may comprise a group VIII element and a non-catalytic element deposited onto the substrate from an alloy. In another embodiment, the composite catalyst layer comprises alternating layers of iron and a lanthanide, preferably gadolinium or lanthanum. The composite catalyst layer may be reused to grow multiple carbon nanotube arrays without additional processing of the substrate. The method may comprise bulk synthesis by forming carbon nanotubes on a plurality of particulate substrates having a composite catalyst layer comprising the group VIII element and the non-catalytic element. In another embodiment, the composite catalyst layer is deposited on both sides of the substrate.

    摘要翻译： 公开了一种形成碳纳米管阵列基板的方法。 一个实施方案包括在衬底上沉积复合催化剂层，氧化复合催化剂层，还原氧化复合催化剂层，并在复合催化剂层上生长阵列。 复合催化剂层可以包含从合金沉积到基材上的VIII族元素和非催化元素。 在另一个实施方案中，复合催化剂层包含铁和镧系元素，优选钆或镧的交替层。 复合催化剂层可以重新用于生长多个碳纳米管阵列而不需要对衬底进行额外处理。 该方法可以包括通过在具有包含VIII族元素和非催化元素的复合催化剂层的多个颗粒基材上形成碳纳米管来进行本体合成。 在另一个实施方案中，复合催化剂层沉积在基材的两侧。