Method and sheet like sensor for measuring stress distribution
    2.
    发明授权
    Method and sheet like sensor for measuring stress distribution 有权
    用于测量应力分布的方法和片状传感器

    公开(公告)号:US06802216B2

    公开(公告)日:2004-10-12

    申请号:US10277649

    申请日:2002-10-23

    CPC classification number: G01L1/205

    Abstract: A method and sheet-like sensor for measuring stress distribution including a grid of members which change in resistance when subjected to strain, the members intersecting at internal nodes and intersecting at boundary nodes at the periphery of the grid defining a plurality of legs. An analyzer is electrically connected only to the boundary nodes and configured to calculate any change in resistance in all of the legs based solely on the measured resistance of the legs between the boundary nodes.

    Abstract translation: 一种用于测量应力分布的方法和片状传感器,包括在受到应变时电阻变化的构件网格,所述构件在内部节点处相交并且在限定多个腿的网格的周边处的边界节点处相交。 分析器仅电连接到边界节点,并且被配置为仅基于测量的边界节点之间的电阻来计算所有腿中的电阻的任何变化。

    Method and device for measuring strain using shape memory alloy materials
    3.
    发明授权
    Method and device for measuring strain using shape memory alloy materials 有权
    使用形状记忆合金材料测量应变的方法和装置

    公开(公告)号:US06550341B2

    公开(公告)日:2003-04-22

    申请号:US09916661

    申请日:2001-07-27

    CPC classification number: G01L1/2287

    Abstract: An article and method for measuring strain using a strain gauge made of a shape memory y alloy, and preferably a pseudoelastic alloy, is disclosed. The strain gauge includes an element that preferably is attached to a substrate and mounted on an object, or is woven or stitched to a fabric to measure the strain experienced under an applied stress. The preferred pseudoelastic alloy is Nitinol, which in pseudoelastic form can elongate by up to approximately 8% to accommodate strain in an object or fabric. When woven into a fabric, a Nitinol-based strain gauge can measure strains of up to approximately 20% in the fabric. The strain gauge can be used in such applications as automotive and aircraft seatbelts, parachute canopies and static lines, and commercial cargo nets.

    Abstract translation: 公开了一种使用由形状记忆y合金制成的应变计测量应变的物品和方法,优选为假弹性合金。 应变片包括优选地附接到基底并安装在物体上的元件,或者被编织或缝合到织物以测量在施加的应力下经历的应变。 优选的假弹性合金是镍钛诺,其以假弹性形式可以延伸高达约8%以适应物体或织物中的应变。 当编织成织物时,基于镍钛诺的应变计可以测量织物中高达约20%的菌株。 应变仪可用于汽车和飞机安全带,降落伞檐篷和静电线路以及商业货网等应用。

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