公开(公告)号：US20080142697A1

公开(公告)日：2008-06-19

申请号：US11610609

申请日：2006-12-14

Applicant: David A. Dahl ,  Jill R. Scott ,  Anthony D. Appelhans ,  Timothy R. McJunkin ,  John E. Olson

Inventor： David A. Dahl ,  Jill R. Scott ,  Anthony D. Appelhans ,  Timothy R. McJunkin ,  John E. Olson

IPC: H01J49/28

CPC classification number: H01J49/40

Abstract: An ion mobility spectrometer may include a flow channel having an inlet end and an outlet end. A deflection electrode is positioned within the flow channel so that a non-linear electric field is created between at least a portion of the flow channel and at least a portion of the deflection electrode when an electrostatic potential is placed across the deflection electrode and the flow channel. The ion mobility spectrometer also includes means for producing ions at a position upstream from the leading edge of the deflection electrode, so that ions produced thereby are deflected by the deflection electrode into the non-linear electric field. A detector positioned within the flow channel for detects ions from the non-linear electric field.

Abstract translation: 离子迁移谱仪可以包括具有入口端和出口端的流动通道。 偏转电极位于流动通道内，使得当静电势横跨偏转电极和流动时，在流动通道的至少一部分与偏转电极的至少一部分之间产生非线性电场 渠道。 离子迁移谱仪还包括用于在偏转电极的前缘上游的位置处产生离子的装置，使得由此产生的离子被偏转电极偏转成非线性电场。 位于流动通道内的检测器，用于检测来自非线性电场的离子。

公开(公告)号：US08891073B2

公开(公告)日：2014-11-18

申请号：US13183228

申请日：2011-07-14

Applicant: Andrew J. Effenberger, Jr. ,  Jill R. Scott ,  Timothy R. McJunkin

Inventor： Andrew J. Effenberger, Jr. ,  Jill R. Scott ,  Timothy R. McJunkin

IPC: G01N21/00 ,  G01J3/30 ,  G01B9/02 ,  G01J3/443 ,  G01J3/26 ,  G01N21/71 ,  G01J3/18

CPC classification number: G01J3/18 ,  G01J3/26 ,  G01J3/443 ,  G01N21/718

Abstract: In laser-induced breakdown spectroscopy (LIBS), an apparatus includes a pulsed laser configured to generate a pulsed laser signal toward a sample, a constructive interference object and an optical element, each located in a path of light from the sample. The constructive interference object is configured to generate constructive interference patterns of the light. The optical element is configured to disperse the light. A LIBS system includes a first and a second optical element, and a data acquisition module. The data acquisition module is configured to determine an isotope measurement based, at least in part, on light received by an image sensor from the first and second optical elements. A method for performing LIBS includes generating a pulsed laser on a sample to generate light from a plasma, generating constructive interference patterns of the light, and dispersing the light into a plurality of wavelengths.

Abstract translation: 在激光诱发击穿光谱（LIBS）中，一种装置包括脉冲激光器，其经配置以产​​生朝向样品的脉冲激光信号，构造干涉物体和光学元件，每个位于来自样品的光的路径中。 构造性干扰对象被配置为产生光的建设性干涉图案。 光学元件构造成分散光。 LIBS系统包括第一和第二光学元件，以及数据采集模块。 数据采集​​模块被配置为至少部分地基于图像传感器从第一和第二光学元件接收的光来确定同位素测量。 用于执行LIBS的方法包括在样本上产生脉冲激光以产生来自等离子体的光，产生光的建设性干涉图案，以及将光分散成多个波长。

公开(公告)号：US08129678B2

公开(公告)日：2012-03-06

申请号：US12818051

申请日：2010-06-17

Applicant: David A. Dahl ,  Jill R. Scott ,  Timothy R. McJunkin

Inventor： David A. Dahl ,  Jill R. Scott ,  Timothy R. McJunkin

IPC: B01D59/44

CPC classification number: H01J49/38 ,  B01D59/44

Abstract: An ion cyclotron spectrometer may include a vacuum chamber that extends at least along a z-axis and means for producing a magnetic field within the vacuum chamber so that a magnetic field vector is generally parallel to the z-axis. The ion cyclotron spectrometer may also include means for producing a trapping electric field within the vacuum chamber. The trapping electric field may comprise a field potential that, when taken in cross-section along the z-axis, includes at least one section that is concave down and at least one section that is concave up so that ions traversing the field potential experience a net magnetron effect on a cyclotron frequency of the ions that is substantially equal to zero. Other apparatuses and a method for performing ion cyclotron spectrometry are also disclosed herein.

Abstract translation: 离子回旋加速器光谱仪可以包括至少沿z轴延伸的真空室，以及用于在真空室内产生磁场的装置，使得磁场矢量大致平行于z轴。 离子回旋加速器光谱仪还可以包括在真空室内产生捕获电场的装置。 捕获电场可以包括场电位，当沿着z轴截取横截面时，其包括至少一个凹陷的部分和至少一个向上凹进的部分，使得穿过场电位的离子经历一个 净磁控管对基本上等于零的离子的回旋加速器的影响。 本文还公开了其他装置和执行离子回旋光谱法的方法。

公开(公告)号：US20100320378A1

公开(公告)日：2010-12-23

申请号：US12818051

申请日：2010-06-17

Applicant: David A. Dahl ,  Jill R. Scott ,  Timothy R. McJunkin

Inventor： David A. Dahl ,  Jill R. Scott ,  Timothy R. McJunkin

IPC: H01J49/34 ,  B01D59/44 ,  H01J49/02 ,  H01J1/02

CPC classification number: H01J49/38 ,  B01D59/44

Abstract: An ion cyclotron spectrometer may include a vacuum chamber that extends at least along a z-axis and means for producing a magnetic field within the vacuum chamber so that a magnetic field vector is generally parallel to the z-axis. The ion cyclotron spectrometer may also include means for producing a trapping electric field within the vacuum chamber. The trapping electric field may comprise a field potential that, when taken in cross-section along the z-axis, includes at least one section that is concave down and at least one section that is concave up so that ions traversing the field potential experience a net magnetron effect on a cyclotron frequency of the ions that is substantially equal to zero. Other apparatuses and a method for performing ion cyclotron spectrometry are also disclosed herein.

Abstract translation: 离子回旋加速器光谱仪可以包括至少沿z轴延伸的真空室，以及用于在真空室内产生磁场的装置，使得磁场矢量大致平行于z轴。 离子回旋加速器光谱仪还可以包括在真空室内产生捕获电场的装置。 捕获电场可以包括场电位，当沿着z轴截取横截面时，其包括至少一个凹陷的部分和至少一个向上凹进的部分，使得穿过场电位的离子经历一个 净磁控管对基本上等于零的离子的回旋加速器的影响。 本文还公开了其他装置和执行离子回旋光谱法的方法。

公开(公告)号：US06915443B2

公开(公告)日：2005-07-05

申请号：US09904814

申请日：2001-07-13

Applicant: Christopher D. McBride ,  Paul V. Brownell ,  Timothy R. McJunkin

Inventor： Christopher D. McBride ,  Paul V. Brownell ,  Timothy R. McJunkin

IPC: G06F1/10 ,  G06F1/04 ,  G06F1/12 ,  G06F13/00 ,  G11C7/00

CPC classification number: G06F1/10

Abstract: The preferred embodiments of the present invention are directed to the selective phase lag and time delay of clock signals within a computer system to compensate for additional parasitic capacitance that may be added to that system because of its open architecture. More particularly, the preferred embodiments are directed to clock signal path circuits where each circuit has multiple signal paths of varying lengths. By allowing the clock signals to propagate along a particular path, phase lag or time delay is added to those clock signals. Selection of a particular path for the clock signal is made by activating electrically controlled switches which themselves are activated or deactivated by software programs that run during power-up of the computer system that determine required phase lag or time delay of those clock signals as a function of parasitic capacitance in the computer system.

Abstract translation: 本发明的优选实施例涉及计算机系统内的时钟信号的选择性相位滞后和时间延迟，以补偿由于其开放架构而可能添加到该系统的附加寄生电容。 更具体地，优选实施例涉及时钟信号路径电路，其中每个电路具有不同长度的多个信号路径。 通过允许时钟信号沿特定路径传播，相位滞后或时间延迟被添加到那些时钟信号。 用于时钟信号的特定路径的选择是通过激活电控开关来实现的，该开关本身由计算机系统的上电期间运行的软件程序激活或去激活，所述软件程序确定那些时钟信号作为一个功能的所需相位滞后或时间延迟 的计算机系统中的寄生电容。

公开(公告)号：US06484584B2

公开(公告)日：2002-11-26

申请号：US09741203

申请日：2000-12-19

Applicant: John A. Johnson ,  Eric D. Larsen ,  Karen S. Miller ,  Herschel B. Smartt ,  Timothy R. McJunkin

Inventor： John A. Johnson ,  Eric D. Larsen ,  Karen S. Miller ,  Herschel B. Smartt ,  Timothy R. McJunkin

IPC: G01N2910

CPC classification number: G01N29/225 ,  B23K31/125 ,  G01N29/07 ,  G01N29/228 ,  G01N29/2487 ,  G01N29/265 ,  G01N29/28 ,  G01N2291/044 ,  G01N2291/056 ,  G01N2291/102 ,  G01N2291/2634 ,  G01N2291/2675

Abstract: A method for the concurrent ultrasonic inspection of partially completed welds is disclosed and which includes providing a pair of transducers which are individually positioned on the opposite sides of a partially completed weld to be inspected; moving the transducers along the length of and laterally inwardly and outwardly relative to the partially completed weld; pulsing the respective transducers to produce an ultrasonic signal which passes through or is reflected from the partially completed weld; receiving from the respective transducers ultrasonic signals which pass through or are reflected from the partially completed welds; and analyzing the ultrasonic signal which has passed through or is reflected from the partially completed weld to determine the presence of any weld defects.

Abstract translation: 公开了一种用于部分完成的焊缝的同时超声波检查的方法，其包括提供一对换能器，它们分别位于待检查的部分完成的焊缝的相对侧上; 沿着该部分完成的焊缝的长度和横向向内和向外移动换能器; 脉冲相应的换能器以产生通过或被部分完成的焊缝反射的超声波信号; 从相应的换能器接收通过或被部分完成的焊缝反射的超声波信号; 并分析已经通过或从部分完成的焊缝反射的超声波信号，以确定是否存在任何焊接缺陷。

公开(公告)号：US07017068B2

公开(公告)日：2006-03-21

申请号：US11107044

申请日：2005-04-15

Applicant: Christopher D. McBride ,  Paul V. Brownell ,  Timothy R. McJunkin

Inventor： Christopher D. McBride ,  Paul V. Brownell ,  Timothy R. McJunkin

IPC: G06F1/12 ,  G11C8/00

CPC classification number: G06F1/10

Abstract: The preferred embodiments of the present invention are directed to the selective phase lag and time delay of clock signals within a computer system to compensate for additional parasitic capacitance that may be added to that system because of its open architecture. More particularly, the preferred embodiments are directed to clock signal path circuits where each circuit has multiple signal paths of varying lengths. By allowing the clock signals to propagate along a particular path, phase lag or time delay is added to those clock signals. Selection of a particular path for the clock signal is made by activating electrically controlled switches which themselves are activated or deactivated by software programs that run during power-up of the computer system that determine required phase lag or time delay of those clock signals as a function of parasitic capacitance in the computer system.

公开(公告)号：US07094989B2

公开(公告)日：2006-08-22

申请号：US10828560

申请日：2004-04-12

Applicant: Timothy R. McJunkin ,  John A. Johnson ,  Eric D. Larsen ,  Herschel B. Smartt

Inventor： Timothy R. McJunkin ,  John A. Johnson ,  Eric D. Larsen ,  Herschel B. Smartt

IPC: B23K9/127

CPC classification number: B23K15/0013 ,  B23K9/025 ,  B23K9/127 ,  B23K26/044

Abstract: A welding apparatus using ultrasonic sensing is described and which includes a movable welder having a selectively adjustable welding head for forming a partially completed weld in a weld seam defined between adjoining metal substrates; an ultrasonic assembly borne by the moveable welder and which is operable to generate an ultrasonic signal which is directed toward the partially completed weld, and is further reflected from same; and a controller electrically coupled with the ultrasonic assembly and controllably coupled with the welding head, and wherein the controller receives information regarding the ultrasonic signal and in response to the information optimally positions the welding head relative to the weld seam.

Abstract translation: 描述了使用超声波感测的焊接装置，其包括具有选择性调节的焊接头的可移动焊接机，用于在相邻的金属衬底之间限定的焊缝中形成部分完成的焊缝; 超声波组件，其由可动焊机承载并且可操作以产生朝向部分完成的焊缝的超声波信号，并且进一步从其反射; 以及与所述超声波组件电耦合并且与所述焊接头可控地耦合的控制器，并且其中所述控制器接收关于所述超声波信号的信息，并且响应于所述信息最优地相对于所述焊缝定位所述焊接头。