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    • 3. 发明申请
    • THERMALLY CONTROLLED PROCESS INTERFACE
    • 热控制过程接口
    • WO2006062722A1
    • 2006-06-15
    • PCT/US2005/041871
    • 2005-11-18
    • ROSEMOUNT, INC.FANDREY, Mark, C.NELSON, Scott, D.FANDREY, Michelle, A.
    • FANDREY, Mark, C.NELSON, Scott, D.FANDREY, Michelle, A.
    • G01L19/04
    • G05D23/1917Y10T137/6851
    • A field device (36) is coupled to a process through at least one process interface element (50, 102, 172, 200). The process interface element (50, 102, 172, 200) may be a field device flange, a manifold, or a process flange. The process interface element (50, 102, 172, 200) has a temperature sensor (106) attached thereto, and is adapted to receive a thermal source (104, 124, 156, 178, 206). In one embodiment, the thermal source (104, 124, 156, 178, 206) is one or more electrical heaters (104, 156, 206). In another embodiment, the thermal source is thermal transfer fluid tracing (126, 174) through the process interface element (50, 102, 172, 200). A controller (108) is coupled to the temperature sensor (106) and is adapted to control the heat applied to the process interface element (50, 102, 172, 200) based upon the temperature of the process interface element (50, 102, 172, 200) measured by the temperature sensor (106).
    • 现场设备(36)通过至少一个过程接口元件(50,102,172,200)耦合到过程。 过程界面元件(50,102,172,200)可以是现场设备凸缘,歧管或工艺凸缘。 过程界面元件(50,102,172,200)具有附接到其上的温度传感器(106),并且适于接收热源(104,124,156,178,206)。 在一个实施例中,热源(104,124,156,178,206)是一个或多个电加热器(104,156,206)。 在另一个实施例中,热源是通过过程界面元件(50,102,172,200)的热传递流体跟踪(126,174)。 控制器(108)耦合到温度传感器(106)并且适于基于过程接口元件(50,102,102)的温度来控制施加到过程接口元件(50,102,172,200)的热量, 172)由温度传感器(106)测量。
    • 5. 发明申请
    • METHODS AND DEVICES FOR GENERATING BIPOLAR SIGNALS FROM UNIPOLAR SIGNALS
    • 用于从单核信号产生双极信号的方法和设备
    • WO2012162702A3
    • 2013-02-28
    • PCT/US2012039883
    • 2012-05-29
    • L LIVERMORE NAT SECURITY LLCNELSON SCOTT DSAMPAYAN STEPHEN
    • NELSON SCOTT DSAMPAYAN STEPHEN
    • H03K4/02
    • H03K3/53H03K3/78
    • Methods, circuits and systems are provides to produce a bipolar signal across a load from two or more unipolar signals. In a circuit that includes a first and a second energy source, as well as a first and a second photonic switch, a first unipolar signal is generated from a first current flow across the load upon activation of the first switch. A second unipolar signal is generated from a second current flow across the load upon activation of the second switch. The bipolar signal with any desired spectral and amplitude characteristics is produced across the load by controlling the relative delay between the activation of the first and second photonic switches. Spectral content and shape of the bipolar signal can be adjusted by controlling the current flows from the one or more energy sources through, for example, modulation of the optical beams incident on the photonic switches.
    • 方法,电路和系统用于在两个或多个单极信号的负载上产生双极信号。 在包括第一和第二能量源以及第一和第二光子开关的电路中,在第一开关激活时,跨越负载的第一电流产生第一单极信号。 当激活第二开关时,通过负载的第二电流产生第二单极信号。 通过控制第一和第二光子开关的激活之间的相对延迟,跨负载产生具有任何所需频谱和振幅特性的双极信号。 可以通过例如通过入射在光子开关上的光束的调制来控制来自一个或多个能量源的电流来调节双极性信号的光谱含量和形状。
    • 6. 发明申请
    • DISPERSION-FREE RADIAL TRANSMISSION LINES
    • 无分散式径向传输线
    • WO2008157829A1
    • 2008-12-24
    • PCT/US2008/067895
    • 2008-06-23
    • LAWRENCE LIVERMORE NATIONAL SECURITY, LLCCAPORASO, George, J.NELSON, Scott, D.
    • CAPORASO, George, J.NELSON, Scott, D.
    • H05H7/02
    • H05H7/02H01P3/16
    • A dispersion-free radial transmission line preferably for linear accelerators, having two plane conductors each with a central hole, and an electromagnetically permeable material between the two conductors and surrounding a central channel connecting the two central holes. At least one of the material parameters of relative magnetic permeability, relative dielectric permittivity, and axial width of the permeable material is varied as a function of radius, so that the characteristic impedance of the radial transmission line is held substantially constant, and pulse transmission through the radial transmission line is substantially dispersion-free. Preferably, the electromagnetically permeable material is divided into concentric radial sections, with the varied material parameters held constant in each respective section but stepwise varied from section to section as a step function of the radius. The radial widths of the concentric sections are selected so that pulse traversal time across each section is the same, and the varied material parameters of the concentric sections are selected so that the traversal error is minimized.
    • 一种无分散的径向传输线,优选用于线性加速器,具有两个具有中心孔的平面导体,以及在两个导体之间的电磁可渗透材料,并围绕连接两个中心孔的中心通道。 可渗透材料的相对导磁率,相对介电常数和轴向宽度的材料参数中的至少一个作为半径的函数而变化,使得径向传输线的特性阻抗基本上保持恒定,脉冲传输通过 径向传输线基本上不分散。 优选地,电磁可渗透材料被分成同心的径向部分,其中各种材料参数在每个相应部分保持恒定,但是作为半径的阶梯函数逐步地逐段变化。 选择同心部分的径向宽度,使得横跨每个部分的脉冲遍历时间相同,并且选择同心部分的变化的材料参数,使得遍历误差最小化。
    • 8. 发明申请
    • METHODS AND DEVICES FOR GENERATING BIPOLAR SIGNALS FROM UNIPOLAR SIGNALS
    • 用于从单核信号产生双极信号的方法和设备
    • WO2012162702A2
    • 2012-11-29
    • PCT/US2012/039883
    • 2012-05-29
    • LAWRENCE LIVERMORE NATIONAL SECURITY, LLCNELSON, Scott, D.SAMPAYAN, Stephen
    • NELSON, Scott, D.SAMPAYAN, Stephen
    • H03K4/02
    • H03K3/53H03K3/78
    • Methods, circuits and systems are provides to produce a bipolar signal across a load from two or more unipolar signals. In a circuit that includes a first and a second energy source, as well as a first and a second photonic switch, a first unipolar signal is generated from a first current flow across the load upon activation of the first switch. A second unipolar signal is generated from a second current flow across the load upon activation of the second switch. The bipolar signal with any desired spectral and amplitude characteristics is produced across the load by controlling the relative delay between the activation of the first and second photonic switches. Spectral content and shape of the bipolar signal can be adjusted by controlling the current flows from the one or more energy sources through, for example, modulation of the optical beams incident on the photonic switches.
    • 方法,电路和系统用于在两个或多个单极信号的负载上产生双极信号。 在包括第一和第二能量源以及第一和第二光子开关的电路中,在第一开关激活时,跨越负载的第一电流产生第一单极信号。 当激活第二开关时,通过负载的第二电流产生第二单极信号。 通过控制第一和第二光子开关的激活之间的相对延迟,跨负载产生具有任何所需频谱和振幅特性的双极信号。 可以通过例如通过入射在光子开关上的光束的调制来控制来自一个或多个能量源的电流来调节双极性信号的光谱含量和形状。