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    METHOD AND SYSTEM FOR FLUID PURIFICATION AND ANALYSIS
    12.
    发明申请
    METHOD AND SYSTEM FOR FLUID PURIFICATION AND ANALYSIS 失效
    流体净化与分析方法与系统

    公开(公告)号：US20100237018A1

    公开(公告)日：2010-09-23

    申请号：US12790924

    申请日：2010-05-31

    Applicant: Bryan R. Hollebone ,  Kexing Liu ,  Michael Allan Donkers

    Inventor： Bryan R. Hollebone ,  Kexing Liu ,  Michael Allan Donkers

    IPC: C02F1/42

    CPC classification number: G01N21/0303 ,  G01N21/05 ,  G01N21/645 ,  G01N21/65 ,  G01N21/94 ,  G01N33/1813 ,  G01N33/1826 ,  G01N2021/0346 ,  G01N2021/0378 ,  G01N2021/6469 ,  G01N2201/0221 ,  G01N2201/0634

    Abstract: A system and method for purifying an aqueous contaminated fluid from colloidal contaminants using a closed-loop feedback control system are disclosed. Contaminated fluid flows into a mixer and mixed with a purifying agent, such as diatomaceous earth, to facilitate metathesis reaction between the purifying agent and the contaminants. The purifying agent entraps the contaminants, and is subsequently removed in a separator into sediments. An estimation of the amount of the purifying agent to dispense is performed using pre-defined equations or look-up tables stored in the database, including relationship between the concentration of contaminants in the fluid and the concentration of the added purifying agent. An automated feedback control is applied to fine tune the purification process into compliance with regulations. High accuracy of measurements is ensured by selecting the same material for both the purifying agent and the trapping medium of analyzers, and additionally by the design of the analyzers.

    Abstract translation: 公开了一种使用闭环反馈控制系统从胶体污染物中净化含水污染流体的系统和方法。 受污染的流体流入混合器并与纯化剂如硅藻土混合，以促进净化剂和污染物之间的复分解反应。 净化剂捕获污染物，随后在分离器中除去沉淀物。 使用存储在数据库中的预定方程或查找表来执行分配净化剂的量的估计，包括流体中的污染物浓度与添加的净化剂的浓度之间的关系。 应用自动化反馈控制来将净化过程微调成符合规定。 通过为分析仪的净化剂和捕集介质选择相同的材料，另外通过分析仪的设计来确保高精度的测量。

    Wavelength measurement by dispersion timing
    16.
    发明授权
    Wavelength measurement by dispersion timing 失效
    通过色散定时进行波长测量

    公开(公告)号：US06433869B1

    公开(公告)日：2002-08-13

    申请号：US09465998

    申请日：1999-12-17

    Applicant: Chris Barnard ,  Kexing Liu

    Inventor： Chris Barnard ,  Kexing Liu

    IPC: G01J312

    CPC classification number: G01J9/00

    Abstract: A novel wavelength measurement method wherein an optical pulse is launched into a dispersive medium with known dispersion properties, such as a dispersion compensating fibre or a dispersion compensating Bragg grating. The specific wavelength of the dispersion-induced light beam is obtained by measuring the propagation time delay through the dispersive medium and relating that propagation time to the calibrated dispersive medium.

    Abstract translation: 一种新颖的波长测量方法，其中将光脉冲发射到具有已知色散特性的色散介质中，例如色散补偿光纤或色散补偿布拉格光栅。 通过测量通过分散介质的传播时间延迟并将该传播时间与校准的色散介质相关联，获得色散诱导光束的特定波长。

    WDM optical network with passive pass-through at each node
    17.
    发明授权
    WDM optical network with passive pass-through at each node 有权

    公开(公告)号：US06347000B1

    公开(公告)日：2002-02-12

    申请号：US09372575

    申请日：1999-08-12

    Applicant: David Milton ,  Tomas Valis ,  Gino Totti ,  Kexing Liu ,  Michel Pigeon

    Inventor： David Milton ,  Tomas Valis ,  Gino Totti ,  Kexing Liu ,  Michel Pigeon

    IPC: H04B1020

    Abstract: A communications network has a plurality of nodes interconnected by an optical transmission medium. The transmission medium is capable of a carrying a plurality of wavelengths organized into bands. A filter at each node for drops a band associated therewith and passively forwards other bands through the transmission medium. A device is provided at each node for adding a band to the transmission medium. Communication can be established directly between a pair of nodes in the network sharing a common band without the active intervention of any intervening node. This allows the network to be protocol independent. Also, the low losses incurred by the passive filters permit relatively long path lengths without optical amplification.

    Method and apparatus for an optoelectronic smart structure interface with wavelength demodulation of laser sensors
    19.
    发明授权
    Method and apparatus for an optoelectronic smart structure interface with wavelength demodulation of laser sensors 失效
    用于激光传感器波长解调的光电智能结构接口的方法和装置

    公开(公告)号：US5469265A

    公开(公告)日：1995-11-21

    申请号：US984688

    申请日：1992-12-02

    Applicant: Raymond M. Measures ,  Tino Alavie ,  Serge M. Melle ,  Trent Coroy ,  Beck Mason ,  Shawn E. Karr ,  Kexing Liu

    Inventor： Raymond M. Measures ,  Tino Alavie ,  Serge M. Melle ,  Trent Coroy ,  Beck Mason ,  Shawn E. Karr ,  Kexing Liu

    IPC: G01D5/353 ,  G08C23/06 ,  G01J3/51 ,  G01B11/16

    CPC classification number: G01D5/35383 ,  G08C23/06

    Abstract: The present invention discloses a method for demodulating, processing and multiplexing the signals from an array of structurally integrated Bragg grating laser sensors in an optoelectronic element in order that this sensing information can be transmitted from the structure by means of a single channel and a user friendly interconnect or free-space propagation. The invention also discloses a method for determining the wavelength of narrowband optical signals such as arises from Bragg grating laser sensors and includes, for each sensor, processing the optical signal through a spectral filter with a spectral transmission function that can be accurately translated by a control parameter which has been calibrated with respective to wavelength. The filtered signal is compared to the reference signal at different values of the control parameter to determine a value of the control parameter where a predetermined relationship of the spectrally filtered signal and the reference signal is achieved. This allows the wavelength to be determined. Apparatus for carrying out the method is also disclosed. A preferred embodiment involving the use of a multiple quantum well electroabsorption device to perform both spectral filtering and detection is also disclosed. The method and apparatus have particular application with lasers and laser sensing arrangements for smart structures.

    Abstract translation: 本发明公开了一种用于解调，处理和复用光电元件中结构集成的布拉格光栅激光传感器阵列的信号的方法，以便该感测信息可以通过单个通道和用户友好的结构从该结构传输 互连或自由空间传播。 本发明还公开了一种用于确定诸如由布拉格光栅激光传感器产生的窄带光信号的波长的方法，并且对于每个传感器，包括通过具有光谱传输函数的光谱滤波器对光信号进行处理，所述光谱滤波器可通过控制精确地转换 参数已经被相应的波长校准了。 将滤波后的信号与参考信号在控制参数的不同值进行比较，以确定实现频谱滤波信号和参考信号的预定关系的控制参数的值。 这允许确定波长。 还公开了用于执行该方法的装置。 还公开了涉及使用多量子阱电吸收装置执行光谱滤波和检测的优选实施例。 该方法和装置具有针对智能结构的激光和激光感测装置的特殊应用。

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