Method and apparatus using a closed loop controlled actuator for surface profilometry
    11.
    再颁专利
    Method and apparatus using a closed loop controlled actuator for surface profilometry 有权
    使用闭环控制的执行器进行表面轮廓测量的方法和装置

    公开(公告)号:USRE41057E1

    公开(公告)日:2009-12-29

    申请号:US11398455

    申请日:2006-04-05

    CPC classification number: G01B5/20 G01B5/0002

    Abstract: An apparatus for profiling the surface of a workpiece, including a probe adapted to make contact with the surface of a workpiece, a sensor for determining or deriving the force between the probe and the workpiece surface, an actuator that adjusts the position of the probe along an axis, which is generally perpendicular to the surface of the workpiece, in order to maintain a constant force between the probe and the surface, and a closed control loop, including a controller that controls the operation of the actuator based on information from the sensor.

    Abstract translation: 用于对工件的表面进行成形的装置,包括适于与工件的表面接触的探头,用于确定或导出探头和工件表面之间的力的传感器,调节探头沿着位置的致动器 通常垂直于工件表面的轴线,以便在探头和表面之间保持恒定的力,以及闭合的控制回路,包括控制器,其基于来自传感器的信息来控制致动器的操作 。

    STANDING WAVE FLUIDIC AND BIOLOGICAL TOOLS
    12.
    发明申请
    STANDING WAVE FLUIDIC AND BIOLOGICAL TOOLS 审中-公开
    标准波流体和生物工具

    公开(公告)号:US20090288479A1

    公开(公告)日:2009-11-26

    申请号:US12395213

    申请日:2009-02-27

    Abstract: The present invention provides standing wave fluidic and biological tools, including: at least one elongated fiber that has mesoscale (i.e. milliscale), microscale, nanoscale, or picoscale dimensions, the at least one elongated fiber having a first end and a second end; and an actuator coupled to the first end of the at least one elongated fiber, wherein the actuator is operable for applying oscillation cycles to the at least one elongated fiber in one or more directions, and wherein the actuator is operable for generating a standing wave in the at least one elongated fiber. These standing wave fluidic and biological tools are selectively disposed in a fluid to provide a function such as mixing the fluid, measuring the viscosity of the fluid, attracting particles in the fluid, shepherding particles in the fluid, providing propulsive force in the fluid, pumping the fluid, dispensing the fluid, sensing particles in the fluid, and detecting particles in the fluid, among others.

    Abstract translation: 本发明提供了驻波流体学和生物学工具,其包括:至少一种细长纤维,其具有中尺度(即,微米),微米级,纳米级或者尺寸尺寸,所述至少一种细长纤维具有第一端和第二端; 以及联接到所述至少一个细长光纤的第一端的致动器,其中所述致动器可操作以在一个或多个方向上对所述至少一根细长光纤施加振荡周期,并且其中所述致动器可操作以产生驻波 所述至少一根细长纤维。 这些驻波流体和生物工具选择性地设置在流体中以提供诸如混合流体,测量流体的粘度,吸引流体中的颗粒,流体中的游牧颗粒,在流体中提供推进力的泵送 流体,分配流体,感测流体中的颗粒,以及检测流体中的颗粒等。

    Sensors and probes for mapping electromagnetic fields
    13.
    发明授权
    Sensors and probes for mapping electromagnetic fields 失效
    用于映射电磁场的传感器和探头

    公开(公告)号:US06933717B1

    公开(公告)日:2005-08-23

    申请号:US10911816

    申请日:2004-08-05

    CPC classification number: G01N27/904 G01N27/902 G01R33/093

    Abstract: Products are disclosed for measuring electromagnetic fields. One embodiment has at least two coplanar magneto-resistive sensors. Each magneto-resistive sensor has a sensitive axis in the plane of the at least two coplanar magneto-resistive sensors. The at least two magneto-resistive sensors may be orthogonally arranged about a central point to measure orthogonal components of electromagnetic fields.

    Abstract translation: 公开了用于测量电磁场的产品。 一个实施例具有至少两个共平面的磁阻传感器。 每个磁阻传感器在至少两个共平面的磁阻传感器的平面内具有一个敏感轴。 至少两个磁阻传感器可以围绕中心点正交布置以测量电磁场的正交分量。

    Closed loop control systems employing relaxor ferroelectric actuators
    14.
    发明授权
    Closed loop control systems employing relaxor ferroelectric actuators 失效
    采用弛豫铁电致动器的闭环控制系统

    公开(公告)号:US06707230B2

    公开(公告)日:2004-03-16

    申请号:US10157095

    申请日:2002-05-29

    CPC classification number: H02N2/062 H01L41/1875 H02N2/0095 H02N2/043

    Abstract: A closed loop motion control system employing at least one relaxor actuator which controls the position of a moving member having mass by controlling an electric field applied to the relaxor actuator. The actuator comprises a body of relaxor material dimensionally variable under the influence of the electric field applied in the form of a voltage to electrodes on at least two surfaces of the actuator. The voltage is applied in response to a feedback signal produced by at least one feedback sensor, which may be a displacement sensor or some other type of sensor. Thus, by constantly monitoring the displacement or other variable of the actuator device, the position of the moving member may be precisely controlled.

    Abstract translation: 一种闭环运动控制系统,其采用至少一个放松器致动器,其通过控制施加到所述放松器致动器的电场来控制具有质量的移动构件的位置。 致动器包括在作用于致动器的至少两个表面上的电压的电压形式的电场的影响下尺寸可变的弛豫材料体。 响应于由至少一个反馈传感器产生的反馈信号施加电压,反馈传感器可以是位移传感器或一些其它类型的传感器。 因此,通过不断地监视致动器装置的位移或其他变量,可以精确地控制移动构件的位置。

    Sensor for eddy current testing and method of use thereof
    15.
    发明授权
    Sensor for eddy current testing and method of use thereof 有权
    用于涡流测试的传感器及其使用方法

    公开(公告)号:US06504363B1

    公开(公告)日:2003-01-07

    申请号:US09521540

    申请日:2000-03-07

    CPC classification number: G01N27/9006

    Abstract: A giant magnetoresistive (GMR) based eddy current sensor including a giant magnetoresistive sensor integrated on a silicon chip with a signal conditioning circuit and a circular coil.

    Abstract translation: 一种基于巨磁阻(GMR)的涡流传感器,包括集成在硅芯片上的巨磁电阻传感​​器,带有信号调理电路和圆形线圈。

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