Piezoelectric switch
    1.
    发明授权
    Piezoelectric switch 失效
    压电开关

    公开(公告)号:US06104119A

    公开(公告)日:2000-08-15

    申请号:US335989

    申请日:1999-06-18

    CPC分类号: H03K17/9643 H04B1/48

    摘要: A piezoelectric switch (10) is made by laminating one piezoelectric film (16) on the top and a second piezoelectric film (18) on the bottom sides of a stiff central core (14). The central core has one or more actuation areas or poppels (12) formed therein. Each piezoelectric film has an electrically conductive portion (15, 17) formed directly over the actuating area. When the actuating area on the laminate is depressed (11), the piezoelectric films each generate an electric signal that is sent through the electrically conductive portions, thus creating a switching signal.

    摘要翻译: 压电开关(10)通过在顶部层叠一个压电膜(16)并在硬中心芯(14)的底侧上层叠第二压电膜(18)而制成。 中心芯具有形成在其中的一个或多个致动区域或孔穴(12)。 每个压电膜具有直接形成在致动区域上的导电部分(15,17)。 当层叠体上的致动区域被压下(11)时,压电膜产生通过导电部分发送的电信号,从而产生开关信号。

    Switching method using a frequency domain piezoelectric switch
    2.
    发明授权
    Switching method using a frequency domain piezoelectric switch 失效
    切换方法采用频域压电开关

    公开(公告)号:US06060817A

    公开(公告)日:2000-05-09

    申请号:US055426

    申请日:1998-04-06

    CPC分类号: H03K17/964 H03K17/965

    摘要: A frequency domain switch (100) utilizes an array of cantilevered beams (108) laminated with a piezoelectric material (126). Each of the beams has a unique geometry, and produces a sinusoidal electrical signal in the piezoelectric film that is assignable only to one of the cantilevered beams. When a free end of one of the cantilevered beams is deflected, it produces a signal that is analyzed by suitable circuitry (410-440) to read the position of the switch.

    摘要翻译: 频域开关(100)利用层叠有压电材料(126)的悬臂梁(108)的阵列。 每个光束具有独特的几何形状,并且在压电膜中产生仅可分配给悬臂梁中的一个的正弦电信号。 当悬臂梁中的一个的自由端偏转时,它产生一个由合适的电路(410-440)分析以读取开关位置的信号。

    Method and apparatus for testing electronic circuitry in a manufacturing
environment
    3.
    发明授权
    Method and apparatus for testing electronic circuitry in a manufacturing environment 失效
    用于在制造环境中测试电子电路的方法和装置

    公开(公告)号:US5714888A

    公开(公告)日:1998-02-03

    申请号:US578406

    申请日:1995-12-26

    申请人: Adolph C. Naujoks

    发明人: Adolph C. Naujoks

    IPC分类号: G01R31/308

    CPC分类号: G01R31/308

    摘要: A manufacturing environment(100) includes test equipment (130) that tests circuitry (110) for functional operation. An electromagnetic probe (137) is operated adjacent to a substrate having electronic circuitry to be tested (310). The electromagnetic probe is activated to directly stimulate a localized portion of the electronic circuitry with a wireless signal (320). Functional operation of the circuitry is determined by measuring the response of the electronic circuitry (330, 340). In one embodiment, an array of electromagnetic probes is operated to receive near-field electromagnetic emissions emanating from the circuitry. These emissions are measured and an electromagnetic profile generated for a portion of the circuitry (330). The electromagnetic profile is analyzed to determine functional operation of the circuitry (340).

    摘要翻译: 制造环境(100)包括测试用于功能操作的电路(110)的测试设备(130)。 电磁探头(137)在具有要测试的电子电路的基板(310)附近操作。 激活电磁探针以用无线信号直接刺激电子电路的局部部分(320)。 通过测量电子电路(330,340)的响应来确定电路的功能操作。 在一个实施例中,操作电磁探针阵列以接收从电路发出的近场电磁辐射。 测量这些发射,并为电路(330)的一部分产生电磁分布。 分析电磁分布图以确定电路(340)的功能操作。

    Pivotable spring contact
    4.
    发明授权
    Pivotable spring contact 失效
    枢轴弹簧接触

    公开(公告)号:US5159265A

    公开(公告)日:1992-10-27

    申请号:US762185

    申请日:1991-09-19

    IPC分类号: G01R1/067

    CPC分类号: G01R1/06722

    摘要: A pivotable spring probe (30) includes a housing (36) having an opening, a plunger (34) within and guided by the housing, the plunger being slidingly movable between an extended position and a retracted position, a pivotable contact head (32) mounted on the plunger for making electrical contact with a conductive surface external to the housing, and a spring (42) mounted on the bottom of the plunger for biasing the plunger towards the housing opening.

    摘要翻译: 可枢转的弹簧探针(30)包括具有开口的壳体(36),位于壳体内并由壳体引导的柱塞(34),柱塞可在延伸位置和缩回位置之间滑动移动,可枢转的接触头(32) 安装在所述柱塞上用于与所述壳体外部的导电表面电接触;以及弹簧(42),其安装在所述柱塞的底部上,用于将所述柱塞朝向所述壳体开口偏压。