Head to flexure interconnection for disc drive microactuator
    51.
    发明授权
    Head to flexure interconnection for disc drive microactuator 失效
    用于磁盘驱动微型致动器的挠性互连

    公开(公告)号:US06351354B1

    公开(公告)日:2002-02-26

    申请号:US09356544

    申请日:1999-07-19

    Applicant: Wayne A. Bonin

    Inventor: Wayne A. Bonin

    CPC classification number: G11B5/4853 G11B5/4826

    Abstract: A disc drive implementing a dual-stage actuation system having an improved scheme for electrically interconnecting a transducing head to a flexure includes a support structure supporting a slider in proximity to a surface of a rotatable disc. The support structure is coarsely positionable by a main actuator. A microactuator is also provided, including a stator attached to the support structure and a rotor operatively attached to the slider. The rotor is connected to the stator by at least one flexible beam. A first electrical interconnect is formed between the support structure and the stator of the microactuator. A conductive trace is formed on the flexible beam between the stator and the rotor of the microactuator. A second electrical interconnect is formed between the rotor of the microactuator and at least one bond pad on the slider electrically connected to the transducing head.

    Abstract translation: 实现具有用于将换能头与挠曲件电互连的改进方案的双级致动系统的盘驱动器包括支撑结构,其支撑靠近可旋转盘的表面的滑块。 支撑结构可通过主执行器粗调定位。 还提供微致动器,包括附接到支撑结构的定子和可操作地附接到滑块的转子。 转子通过至少一个柔性梁连接到定子。 在支撑结构和微致动器的定子之间形成第一电互连。 在微型致动器的定子和转子之间的柔性梁上形成导电迹线。 第二电互连形成在微致动器的转子和滑块之间至少一个与换能头电连接的接合焊盘上。

    Apparatus for microindentation hardness testing and surface imaging
incorporating a multi-plate capacitor system
    52.
    发明授权
    Apparatus for microindentation hardness testing and surface imaging incorporating a multi-plate capacitor system 失效
    用于微压痕硬度测试和表面成像的装置,包括多板电容器系统

    公开(公告)号:US5553486A

    公开(公告)日:1996-09-10

    申请号:US327979

    申请日:1994-10-24

    Applicant: Wayne A. Bonin

    Inventor: Wayne A. Bonin

    Abstract: A force, weight or position sensor unit and sensor element in a first embodiment. In a second embodiment, the sensor element of the first embodiment is incorporated into an apparatus for microindentation hardness testing and surface imaging which allows immediate imaging of the surface subsequent to hardness testing. The sensor uses a multi-capacitor system having drive and pick-up plates mounted on an appropriate suspension system to provide the desired relative motion when a force is applied to the pick-up plate. The output signal is run through a buffer amplifier and synchronously demodulated to produce a signal proportional to force or displacement. The sensor element is mounted on a scanning tunneling microscope base and a sample mounted on the sensor. The force sensor is used for both measuring the applied force during microindentation or micro hardness testing and for imaging before and after the testing to achieve an atomic force microscope type image of the surface topography before and after indentation testing.

    Abstract translation: 第一实施例中的力,重量或位置传感器单元和传感器元件。 在第二实施例中,将第一实施例的传感器元件结合到用于微压痕硬度测试和表面成像的装置中,其允许在硬度测试之后立即对表面进行成像。 该传感器使用多电容器系统,其具有安装在合适的悬挂系统上的驱动和拾取板,以在向拾取板施加力时提供期望的相对运动。 输出信号通过缓冲放大器运行并同步解调,以产生与力或位移成比例的信号。 传感器元件安装在扫描隧道显微镜底座和安装在传感器上的样品上。 力传感器用于在微压痕或显微硬度测试期间测量施加的力,并用于测试前后的成像,以实现压痕测试前后的表面形貌的原子力显微镜型图像。

    Vehicle performance analyzer
    53.
    发明授权
    Vehicle performance analyzer 失效
    车辆性能分析仪

    公开(公告)号:US4694687A

    公开(公告)日:1987-09-22

    申请号:US853236

    申请日:1986-04-17

    CPC classification number: G01P15/125 G01P1/127

    Abstract: A capacitive accelerometer system for detecting changes in G-forces and for producing a digital count value proportional to such changes. An oscillator-driven capacitive transducer of a unique design produces a voltage variation whose amplitude and frequency characteristics are a function of the direction and magnitude of the applied G-forces. The transducer itself comprises a pair of spaced-apart parallel plates disposed on opposite sides of a beam-supported movable plate which responds to changes in acceleration forces. The modulated signal is then demodulated and applied by a semiconductor switch actuated by a pulse from a microprocessor to a voltage-controlled current source. The current source varies the discharge rate of a precision capacitor. When the voltage on the capacitor drops to a predetermined threshold, an interrupt signal is presented to the microprocessor which had been counting one microsecond pulses from its internal clock during the period between the actuation of the semiconductor switch and the generation of the interrupt. The count is then inversely proportional to the shift in capacitance of the transducer which, in turn, is proportional to the G-forces applied to it.

    Abstract translation: 一种电容加速度计系统,用于检测G力的变化并产生与这种变化成比例的数字计数值。 独特设计的振荡器驱动的电容换能器产生电压变化,其幅度和频率特性是施加的G力的方向和幅度的函数。 传感器本身包括一对间隔开的平行板,其设置在响应于加速力变化的梁支撑的可动板的相对侧上。 然后通过由微处理器的脉冲驱动的半导体开关对压控电流源进行解调和施加调制信号。 电流源改变精密电容器的放电率。 当电容器上的电压下降到预定的阈值时,中断信号被提供给微处理器,该微处理器在半导体开关的致动和产生中断之间的期间已经从其内部时钟计数一微秒的脉冲。 然后计数与换能器的电容的偏移成反比,换能器又与施加到其上的G力成比例。

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