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    Sensor and methods of detecting target materials and situations in closed systems
    1.
    发明授权
    Sensor and methods of detecting target materials and situations in closed systems 有权

    公开(公告)号：US09915575B1

    公开(公告)日：2018-03-13

    申请号：US14832482

    申请日：2015-08-21

    申请人： Consolidated Nuclear Security, LLC

    发明人： David K. Mee ,  Edward B. Ripley ,  Zachary C. Nienstedt ,  Alex W. Nienstedt ,  Layton N. Howell, Jr.

    IPC分类号： G01L7/00 ,  G01L7/06 ,  G01L7/08

    CPC分类号： G01L9/16

    摘要： Disclosed is a passive, in-situ pressure sensor. The sensor includes a sensing element having a ferromagnetic metal and a tension inducing mechanism coupled to the ferromagnetic metal. The tension inducing mechanism is operable to change a tensile stress upon the ferromagnetic metal based on a change in pressure in the sensing element. Changes in pressure are detected based on changes in the magnetic switching characteristics of the ferromagnetic metal when subjected to an alternating magnetic field caused by the change in the tensile stress. The sensing element is embeddable in a closed system for detecting pressure changes without the need for any penetrations of the system for power or data acquisition by detecting changes in the magnetic switching characteristics of the ferromagnetic metal caused by the tensile stress.

    Pressure sensor
    2.
    发明授权
    Pressure sensor 有权
    压力传感器

    公开(公告)号：US09146168B1

    公开(公告)日：2015-09-29

    申请号：US13835700

    申请日：2013-03-15

    申请人： Consolidated Nuclear Security, LLC

    发明人： David K. Mee ,  Edward B. Ripley ,  Zachary C. Nienstedt ,  Alex W. Nienstedt ,  Layton N. Howell, Jr.

    IPC分类号： G01L7/00 ,  G01L7/06 ,  G01L7/08 ,  G01L5/00

    CPC分类号： G01L5/0042 ,  G01L9/16

    摘要： Disclosed is a passive, in-situ pressure sensor. The sensor includes a sensing element having a ferromagnetic metal and a tension inducing mechanism coupled to the ferromagnetic metal. The tension inducing mechanism is operable to change a tensile stress upon the ferromagnetic metal based on a change in pressure in the sensing element. Changes in pressure are detected based on changes in the magnetic switching characteristics of the ferromagnetic metal when subjected to an alternating magnetic field caused by the change in the tensile stress. The sensing element is embeddable in a closed system for detecting pressure changes without the need for any penetrations of the system for power or data acquisition by detecting changes in the magnetic switching characteristics of the ferromagnetic metal caused by the tensile stress.

    摘要翻译： 公开了一种被动的原位压力传感器。 传感器包括具有铁磁金属的感测元件和耦合到铁磁金属的张力诱导机构。 张力诱导机构可操作以基于感测元件中的压力变化来改变强磁性金属上的拉伸应力。 基于由拉伸应力的变化引起的交变磁场的强磁性金属的磁性开关特性的变化来检测压力变化。 感测元件可嵌入密封系统中，用于检测压力变化，而不需要通过检测由拉伸应力引起的铁磁性金属的磁性开关特性的变化来进行功率或数据采集的系统的任何穿透。