Iron-rich magnetostrictive element having optimized bias-field-dependent
resonant frequency characteristic
    1.
    发明授权
    Iron-rich magnetostrictive element having optimized bias-field-dependent resonant frequency characteristic 失效
    富铁磁致伸缩元件具有优化的偏磁场相关谐振频率特性

    公开(公告)号:US6057766A

    公开(公告)日:2000-05-02

    申请号:US165566

    申请日:1998-10-02

    摘要: A magnetostrictive element for use in a magneto-mechanical marker has a resonant frequency characteristic that is at a minimum at a bias field level corresponding to the operating point of the magnetomechanical marker. The magnetostrictive element has a magnetomechanical coupling factor k in the range 0.28 to 0.4 at the operating point. The magnetostrictive element is formed by applying cross-field annealing to an iron-rich amorphous metal alloy ribbon (45 to 82 percent iron) which includes a total of from 2 to 17 percent of one or more of Mn, Mo, Nb, Cr, Hf, Zr, Ta, V. Cobalt, nickel, boron, silicon and/or carbon may also be included. The metal alloy may include one early transition element selected from the group consisting of Zr, Hf and Ta, and also a second early transition element selected from the group consisting of Mn, Mo, Nb, Cr, and V.

    摘要翻译: 用于磁 - 机械标记的磁致伸缩元件具有在对应于磁力机械标记的工作点的偏置磁场水平处最小的共振频率特性。 磁致伸缩元件在工作点具有在0.28至0.4范围内的磁机械耦合系数k。 磁致伸缩元件是通过对富含铁的非晶金属合金带(45%至82%的铁)进行交叉场退火而形成的,其包括总共2至17%的一种或多种Mn,Mo,Nb,Cr, Hf,Zr,Ta,V.还可以包括钴,镍,硼,硅和/或碳。 金属合金可以包括选自Zr,Hf和Ta的一种早期过渡元素,以及选自由Mn,Mo,Nb,Cr和V组成的组的第二早期过渡元素。

    Stabilizing the position of an active element in a magnetomechanical EAS
marker
    3.
    发明授权
    Stabilizing the position of an active element in a magnetomechanical EAS marker 失效
    稳定有源元件在磁力机械EAS标记中的位置

    公开(公告)号:US5969612A

    公开(公告)日:1999-10-19

    申请号:US110497

    申请日:1998-07-06

    IPC分类号: G08B13/24 G08B13/14

    摘要: A magnetomechanical EAS marker is formed of a housing, a magnetostrictive active element in the housing and a bias element fixedly mounted on the housing. A central portion of the active element is secured to the housing to keep the active element from shifting in a longitudinal direction relative to the bias element and to keep ends of the active element spaced from the housing. The active element remains free to mechanically resonate in response to an EAS interrogation signal. The stable positioning of the active element prevents variations in the bias magnetic field due to shifting relative to the bias element, while keeping ends of the active element free from frictional damping due to mechanical loading from contact with the housing.

    摘要翻译: 磁性机械EAS标记由壳体,壳体中的磁致伸缩有源元件和固定地安装在壳体上的偏置元件形成。 有源元件的中心部分被固定到壳体,以保持有源元件相对于偏压元件在纵向方向上移动并且保持有源元件的端部与壳体间隔开。 有源元件响应于EAS询问信号而保持自由地机械谐振。 有源元件的稳定定位防止由于相对于偏置元件的移动而导致的偏置磁场的变化,同时保持有源元件的端部由于与壳体的接触的机械负载而不受摩擦阻尼。

    ADHESIVE-BONDED ARTICLE PROTECTION TAG
    4.
    发明申请
    ADHESIVE-BONDED ARTICLE PROTECTION TAG 审中-公开
    粘合物品保护标签

    公开(公告)号:US20140232544A1

    公开(公告)日:2014-08-21

    申请号:US13840480

    申请日:2013-03-15

    IPC分类号: G08B13/24

    CPC分类号: G08B13/2434

    摘要: A security system tag. The security system tag includes a housing. The security system tag further includes an electronic article surveillance, EAS, element in which the EAS element is arranged to emit a detectable signal when introduced to an interrogation signal. The security system tag further includes a metal element in which the metal element is adapted to be heated. The security system tag further includes a first reversible adhesive proximate the metal element in which at least a portion of the first reversible adhesive de-bonds when thermally affected by the metal element when the metal element is heated.

    摘要翻译: 安全系统标签。 安全系统标签包括壳体。 安全系统标签还包括电子物品监视EAS元件,其中EAS元件被布置成在被引入询问信号时发出可检测信号。 安全系统标签还包括其中金属元件适于被加热的金属元件。 所述安全系统标签进一步包括靠近所述金属元件的第一可逆粘合剂,其中当所述金属元件被加热时,所述第一可逆粘合剂的至少一部分在被所述金属元件热影响时解除粘合。

    AMORPHOUS ALLOY COMPOSITION FOR A MAGNETOMECHANICAL RESONATOR AND EAS MARKER CONTAINING SAME
    5.
    发明申请
    AMORPHOUS ALLOY COMPOSITION FOR A MAGNETOMECHANICAL RESONATOR AND EAS MARKER CONTAINING SAME 审中-公开
    用于磁性体共振器的非合金组合物和含有其的EAS标记

    公开(公告)号:US20100279056A1

    公开(公告)日:2010-11-04

    申请号:US12451870

    申请日:2007-06-07

    IPC分类号: B32B1/04

    摘要: The invention may include a novel composition for and/or processing of an active element for an EAS marker that achieves the same or better performance of existing materials while solving the problem of higher cost. It may include a magnetomechanical active element formed by planar strip of amorphous magnetostrictive alloy having a composition FeaNibMc wherein a+b+c=100, wherein a is in a range of 40-70 weight percent, b is in a range of 10-50 weight percent, and c is in a range of 10-50 weight percent, and where M is the balance of remaining elements; wherein the magnetomechanical active element is subject to batch annealing in the presence of a magnetic field that is substantially transverse to the ribbon length of the element and at a temperature of less than about 300° C. and for a time greater than at least about one hour.

    摘要翻译: 本发明可以包括用于和/或处理用于EAS标记的活性元件的新型组合物,其在解决较高成本的问题的同时实现现有材料的相同或更好的性能。 它可以包括由具有组成FeaNibMc的无定形磁致伸缩合金的平面条形成的磁力机械有源元件,其中a + b + c = 100,其中a在40-70重量%的范围内,b在10-50的范围内 重量百分比,c在10-50重量%的范围内,其中M是剩余元素的余量; 其中所述磁力机械有源元件在基本上横向于所述元件的带长度并且在小于约300℃的温度的磁场存在下进行分批退火,并且大于至少约一个时间 小时。

    Temperature feedback control for solid state gas sensors
    6.
    发明申请
    Temperature feedback control for solid state gas sensors 审中-公开
    固态气体传感器的温度反馈控制

    公开(公告)号:US20060199271A1

    公开(公告)日:2006-09-07

    申请号:US11074385

    申请日:2005-03-07

    IPC分类号: G01N21/72

    摘要: A solid state gas sensor may include gas sensing element coupled to a substrate. The gas sensing element may have a desired operating temperature, which may be between 100 and 400 degrees Celsius. The sensor may further include a temperature sensor coupled to the substrate and configured to sense an operating temperature of the sensing element and provide a feedback signal representative of the operating temperature. The sensor may further include a heater having a heat output. The heater may be responsive to the feedback signal to adjust the heat output to drive the operating temperature to the desired operating temperature. A detector such as a smoke detector or carbon monoxide detector having such a solid state gas sensor is also provided. An associated method is also provided.

    摘要翻译: 固态气体传感器可以包括耦合到衬底的气体感测元件。 气体感测元件可以具有期望的操作温度,其可以在100和400摄氏度之间。 传感器还可以包括耦合到衬底并被配置为感测感测元件的工作温度并提供代表工作温度的反馈信号的温度传感器。 传感器还可以包括具有热输出的加热器。 加热器可以响应于反馈信号来调节热输出以将操作温度驱动到期望的工作温度。 还提供了具有这种固态气体传感器的检测器,例如烟雾探测器或一氧化碳检测器。 还提供了相关联的方法。

    Active element for magnetomechanical EAS marker incorporating particles
of bias material
    10.
    发明授权
    Active element for magnetomechanical EAS marker incorporating particles of bias material 失效
    用于磁性机械EAS标记的有源元件结合偏置材料的颗粒

    公开(公告)号:US5825290A

    公开(公告)日:1998-10-20

    申请号:US800772

    申请日:1997-02-14

    摘要: A self-biasing magnetostrictive element for use in a magnetomechanical EAS marker is a strip of amorphous alloy with crystalline particles of semi-hard or hard magnetic material distributed throughout the bulk of the amorphous alloy strip. The crystalline particles are magnetized to bias the amorphous alloy strip to resonate in response to an interrogation signal. The crystalline particles are formed by heat-treating the amorphous alloy strip at a temperature above the Curie temperature of the amorphous alloy in the presence of a longitudinal magnetic field. The alloy strip is then cross-field annealed at a temperature below the Curie temperature of the amorphous alloy to form a transverse anisotropy in the amorphous bulk of the alloy strip. A preferred alloy composition includes iron, cobalt, niobium, copper, boron and silicon.

    摘要翻译: 用于磁机械EAS标记的自偏磁致伸缩元件是非晶态合金带,其分布在整个非晶合金带的整体上的半硬或硬磁性材料的结晶颗粒。 晶体颗粒被磁化以偏置非晶态合金带,以响应于询问信号而共振。 通过在非磁性合金带材的纵向磁场的存在下,在非晶合金的居里温度以上的温度下热处理结晶粒子。 然后将合金带在低于非晶合金的居里温度的温度下进行交叉场退火,以在合金带的无定形体中形成横向各向异性。 优选的合金组成包括铁,钴,铌,铜,硼和硅。