Microspectrometer gas analyzer
    292.
    发明授权
    Microspectrometer gas analyzer 失效
    微光谱仪气体分析仪

    公开(公告)号:US06791086B2

    公开(公告)日:2004-09-14

    申请号:US10227135

    申请日:2002-08-23

    Inventor: James T Russell

    CPC classification number: G01J3/36 G01J3/06 G01J3/18 G01N21/3504

    Abstract: A robust, compact spectrometer apparatus for determining respective concentrations or partial pressures of multiple gases in a gas sample with single as well as multiple and even overlapping, absorption or emission spectra that span a wide spectral range.

    Abstract translation: 一种坚固,紧凑的光谱仪装置,用于确定气体样品中多种气体的浓度或分压,其具有单个以及跨越宽光谱范围的多个且甚至重叠的吸收或发射光谱。

    Method and apparatus for a downhole flourescence spectrometer
    293.
    发明申请
    Method and apparatus for a downhole flourescence spectrometer 有权
    井下荧光光谱仪的方法和装置

    公开(公告)号:US20040007665A1

    公开(公告)日:2004-01-15

    申请号:US10453717

    申请日:2003-06-03

    Abstract: The invention comprises an apparatus and method for simple fluorescence spectrometry in a down hole environment. The apparatus and method utilization of two UV light bulbs and an optically clear UV coupler and a fluid containment system. The optically clear UV coupler and fluid containment system are made of sapphire. The apparatus is attached in a manner that enables light transmitted from a light source on the far side of the fluid containment system to pass through a pathway in a plate holding the UV bulbs. UV light illuminates the fluid, which in turn fluoresces light. The fluoresced light is transmitted back towards the UV bulb mount and through the pathway towards an optical spectrum analyzer.

    Abstract translation: 本发明包括在井下环境中简单荧光光谱法的装置和方法。 两种紫外灯泡和光学透明UV耦合器和流体容纳系统的装置和方法利用。 光学透明的UV耦合器和流体容纳系统由蓝宝石制成。 该装置以使得能够从流体容纳系统的远侧上的光源透射的光通过保持UV灯泡的板中的路径的方式附接。 紫外线照射流体,这又使荧光发光。 荧光的光被传输回到UV灯座并通过光谱分析仪。

    Optical channel monitor
    294.
    发明申请
    Optical channel monitor 有权
    光通道监视器

    公开(公告)号:US20030007148A1

    公开(公告)日:2003-01-09

    申请号:US10159370

    申请日:2002-05-31

    Abstract: An optical channel monitor is provided that sequentially or selectively filters an optical channel(s) 11 of light from a (WDM) optical input signal 12 and senses predetermined parameters of the each filtered optical signal (e.g., channel power, channel presence, signal-noise-ratio). The OCM 10 is a free-space optical device that includes a collimator assembly 15, a diffraction grating 20 and a mirror 22. A launch pigtail emits into free space the input signal through the collimator assembly 15 and onto the diffraction grating 20, which separates spatially each of the optical channels 11 of the collimated light, and reflects the separated channels of light onto the mirror 22. A null/4 plate 26 is disposed between the mirror 22 and the diffraction grating 20. The mirror reflects the separated light back through the null/4 plate 26 to the diffraction grating 20, which reflects the channels of light back through the collimating lens 18. The lens 18 focuses each separated channel of light (null1-nullN) at a different focal point in space. One of the optical channels 11 is focused onto a receive pigtail 28, which then propagates to a photodetector 30. A pivoting mechanism 34 pivots the diffraction grating 20 or mirror 22 about a pivot point 36 to sequentially or selectively focus each optical channel 11 to the receive pigtail 28. A position sensor 42 detects the displacement of the diffraction grating 24 or mirror.

    Abstract translation: 提供了一种光通道监视器,其顺序地或选择性地对来自(WDM)光输入信号12的光的通道11进行滤波,并且感测每个滤波的光信号的预定参数(例如,信道功率,信道存在, 噪声比)。 OCM 10是包括准直器组件15,衍射光栅20和反射镜22的自由空间光学装置。发射尾纤通过准直器组件15和衍射光栅20将衍射光栅20发射到自由空间中,输入信号分离 准直光的每个光通道11,并将分离的光通道反射到反射镜22上。在反射镜22和衍射光栅20之间设置有羔羊/ 4板26。反射镜将分离的光反射回 骰子/ 4板26到衍射光栅20,其反射通过准直透镜18的光通道。透镜18将每个分离的光通道(lambd1-lambdN)聚焦在空间中的不同焦点处。 光通道11中的一个被聚焦到接收引线28上,接收引线28然后传播到光电检测器30.枢转机构34围绕枢转点36枢转衍射光栅20或反射镜22,以顺序地或选择性地将每个光通道11聚焦到 接收尾纤28.位置传感器42检测衍射光栅24或反射镜的位移。

    Tilt-compensated interferometers
    295.
    发明授权
    Tilt-compensated interferometers 失效
    倾斜补偿干涉仪

    公开(公告)号:US06469790B1

    公开(公告)日:2002-10-22

    申请号:US09299022

    申请日:1999-04-26

    Abstract: A novel variation of Michelson's interferometer uses tilt- and shear-compensation optics to allow various mirror motions to produce variation of path difference. The tilt-compensation mechanism consists of two complementary reflections from a single plane mirror and, in some cases, the beamsplitter, to produce a beam having a constant angle of propagation, typically the same as the input beam. Using a retroreflector to invert the image of a single plane mirror or a sequence of plane mirrors before the second reflections produces complementary reflections. A particularly efficient embodiment of the present invention uses one or more balanced disk-shaped mirrors to effect very rapid variation of path difference by nutation or precession. Other advantages of tilt-compensation include photometric stability. This interferometer has applications in spectrometry, spectral imaging and metrology.

    Abstract translation: 迈克尔逊干涉仪的一个新颖变化使用倾斜和剪切补偿光学元件,以允许各种镜像运动产生路径差异的变化。 倾斜补偿机构包括来自单个平面镜的两个互补反射,并且在一些情况下由分束器组成,以产生具有恒定传播角的光束,通常与输入光束相同。 在第二次反射之前使用回射器反转单个平面镜或平面镜序列的图像产生互补反射。 本发明的一个特别有效的实施例使用一个或多个平衡的盘形反射镜通过章动或进动来实现路径差异的非常快速的变化。 倾斜补偿的其他优点包括光度稳定性。 该干涉仪具有光谱,光谱成像和计量学应用。

    Tunable filter
    296.
    发明申请
    Tunable filter 审中-公开
    可调滤波器

    公开(公告)号:US20020126385A1

    公开(公告)日:2002-09-12

    申请号:US10094570

    申请日:2002-03-07

    Abstract: A tunable filter includes a polarizer, a polarization rotator, a diffraction grating and a diffraction grating adjustor. The polarizer polarizes a light beam and splits the light beam into first and second light beams. The polarization rotator rotates a plane of polarization of the first light beam at 90null to generate a rotated light beam. The diffraction grating receives the rotated light beam and the second light beam. The diffraction grating adjustor adjusts the diffraction grating to change incident angles of the rotated light beam and second light beam.

    Abstract translation: 可调谐滤波器包括偏振器,偏振旋转器,衍射光栅和衍射光栅调节器。 偏振器偏振光束并将光束分裂成第一和第二光束。 偏振旋转器使第一光束的偏振面旋转90°以产生旋转的光束。 衍射光栅接收旋转的光束和第二光束。 衍射光栅调节器调节衍射光栅以改变旋转的光束和第二光束的入射角。

    Multicast transmissions in a multistage interconnect network
    297.
    发明申请
    Multicast transmissions in a multistage interconnect network 失效
    多级互连网络中的组播传输

    公开(公告)号:US20020010735A1

    公开(公告)日:2002-01-24

    申请号:US09783923

    申请日:2001-02-14

    Abstract: A multistage interconnect network (MIN) capable of supporting massive parallel processing, including point-to-point and multicast communications between processor modules (PMs) which are connected to the input and output ports of the network. The network is built using interconnected switch nodes arranged in 2 nulllogb Nnull stages, wherein b is the number of switch node input/output ports, N is the number of network input/output ports and nulllogb Nnull indicates a ceiling function providing the smallest integer not less than logb N. The additional stages provide additional paths between network input ports and network output ports, thereby enhancing fault tolerance and lessening contention.

    Abstract translation: 能够支持大规模并行处理的多级互连网络(MIN),包括连接到网络的输入和输出端口的处理器模块(PM)之间的点对点和多点通信。 网络使用以2 [logb N]级布置的互连交换节点构建,其中b是交换节点输入/输出端口的数量,N是网络输入/输出端口的数量,[logb N]表示提供的上限功能 最小的整数不小于logb N.额外的级别提供网络输入端口和网络输出端口之间的额外路径,从而增强容错能力和减少争用。

    Monochromator and optical analyzing device using the same
    299.
    发明授权
    Monochromator and optical analyzing device using the same 失效
    单色器和使用其的光学分析装置

    公开(公告)号:US6034767A

    公开(公告)日:2000-03-07

    申请号:US292023

    申请日:1999-04-15

    Inventor: Osamu Yoshikawa

    CPC classification number: G01J3/06

    Abstract: A monochromator according to the present invention has an arm 1 rotatably mounted on a rotation shaft 3, and a diffraction grating 6 is fixed to the arm 1. The arm 1 is rotated by a linear motor 9 including a moving part 91 fixed to the arm 1 and a stator part 92 fixed to a base 2. The linear motor 9 is a voice-coil linear motor constructed to allow the arm 1 to rotate reciprocatively around the rotation shaft 3 within a preset angular range. The absolute rotational position of the arm 1 is detected by a rotary encoder 7 including a crossbar 71 fixed to the arm 1 and a encoder block 72 fixed to the base 2. Based on the output signal of the rotary encoder 7, the linear motor 9 is controlled so that the moving part 92 rotates at a fixed angular speed around the rotation axis 3. Thus, the wavelength scanning is carried out at high speed, and sampling of monochromatic light having desired wavelengths is performed accurately.

    Abstract translation: 根据本发明的单色仪具有可旋转地安装在旋转轴3上的臂1,并且衍射光栅6固定到臂1.臂1由线性电动机9旋转,线性电动机9包括固定到臂的移动部分91 固定在基座2上的定子部92.线性马达9是构成为能够使臂1绕预定角度范围内的旋转轴3往复运动的音圈线性马达。 臂1的绝对旋转位置由包括固定在臂1上的横杆71和固定在基座2上的编码器块72的旋转编码器7检测。基于旋转编码器7的输出信号,线性马达9 被控制为使得移动部件92围绕旋转轴线3以固定的角速度旋转。因此,波长扫描以高速进行,并且准确地执行具有期望波长的单色光的采样。

    Spectroscopic instrument with offset grating to improve focus
    300.
    发明授权
    Spectroscopic instrument with offset grating to improve focus 失效
    具有偏移光栅的光谱仪可改善焦距

    公开(公告)号:US06031608A

    公开(公告)日:2000-02-29

    申请号:US146424

    申请日:1998-09-03

    CPC classification number: G01J3/06 G01J3/02 G01J3/0202 G01J3/18

    Abstract: In a spectroscopic instrument having a spherical grating to disperse incident light into a spectrum, the grating is oscillated on axis to scan the light passing through an exit slit through the spectrum or a portion of the spectrum. The axis of rotation of the grating is shifted to be displaced from tangent to the center of the spherical grating so that the light passing through the exit slit is substantially focused throughout the spectrum scanned by the instrument. The grating is mounted in the holder to shift the center of gravity of the grating and the holder to be on the axis on which the grating is pivoted.

    Abstract translation: 在具有用于将入射光分散到光谱中的球面光栅的光谱仪中,光栅在轴上振荡,以扫描通过光谱或光谱的一部分的出射狭缝的光。 光栅的旋转轴线被偏移到与球面光栅的中心相切的位置,使得通过出射狭缝的光在由仪器扫描的整个光谱中基本聚焦。 光栅安装在保持器中以将光栅和保持器的重心移动到光栅枢转的轴上。

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