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    Near UV absorption spectrometer and method for using the same
    22.
    发明申请
    Near UV absorption spectrometer and method for using the same 有权
    近紫外吸收光谱仪及其使用方法

    公开(公告)号：US20070138401A1

    公开(公告)日：2007-06-21

    申请号：US11311126

    申请日：2005-12-20

    申请人： Eugene Tokhtuev ,  Christopher Owen ,  Paul Schilling ,  Anna Pilipchenko ,  Paul Kraus ,  Katherine Sanville

    发明人： Eugene Tokhtuev ,  Christopher Owen ,  Paul Schilling ,  Anna Pilipchenko ,  Paul Kraus ,  Katherine Sanville

    IPC分类号： G01N21/33

    CPC分类号： G01N21/33 ,  G01J3/021 ,  G01J3/0264 ,  G01J3/0272 ,  G01J3/0283 ,  G01J3/12 ,  G01J3/36 ,  G01J3/42 ,  G01J3/4412 ,  G01J2003/1226 ,  G01N21/532 ,  G01N21/5907 ,  G01N21/8507 ,  G01N2201/0221

    摘要： A UV absorption spectrometer includes a housing, a controller, and a sensor unit including an ultraviolet light source, an analytical area in an analytical cell or in running water or gaseous medium, and an UV wavelength separator including a UV detector. An ultraviolet light in a wavelength range of 200-320 nm emits from the light source through the analytical area to the wavelength separator, and the controller transforms output signals from the UV detector into absorbance values or optical densities for two or more wavelengths in the wavelength range, calculates differences of said absorbance values or optical densities, determines a concentration of a chemical in the solution with calibration constants found for a known concentration of the chemical and said differences of said absorbance values or optical densities.

    摘要翻译： 紫外线吸收光谱仪包括壳体，控制器和包括紫外光源，分析单元中的分析区域或流水或气体介质中的分析区域的传感器单元和包括UV检测器的UV波长分离器。 波长范围为200-320nm的紫外光从光源通过分析区域发射到波长分离器，并且控制器将来自UV检测器的输出信号转换成波长为两个或更多波长的吸光度值或光密度 范围，计算所述吸光度值或光密度的差异，确定溶液中化学物质的浓度，其中针对已知化学浓度和所述吸光度值或光密度的差异发现校准常数。

    Turbidity sensor
    23.
    发明授权
    Turbidity sensor 有权
    浊度传感器

    公开(公告)号：US07142299B2

    公开(公告)日：2006-11-28

    申请号：US10990532

    申请日：2004-11-18

    申请人： Eugene Tokhtuev ,  Anatoly Skirda ,  Christopher J. Owen ,  William Christensen

    发明人： Eugene Tokhtuev ,  Anatoly Skirda ,  Christopher J. Owen ,  William Christensen

    IPC分类号： G01N21/00

    CPC分类号： G01N21/53

    摘要： A turbidity measuring system is provided with a chamber and a sensor having a watertight housing, a light source, a first light focusing device for focusing a light emitted from the light source and passing therethough into a sample liquid, a second light focusing device for collecting at least one scattered light resulted form the focused light when passing the sample liquid, a photodiode for receiving the collected light thereby generating electronic signals, and an electronic board for processing the electronic signals. In particular, the watertight housing has a tilted bottom, the light detector includes at least two photodiodes for detecting separated turbidity measuring ranges, or an insert is placed at the bottom of the chamber having first and second insert channels each of whose axis pointing toward an axis of one of the cylindrically-shaped channels in the watertight housing in order to trap light.

    摘要翻译： 浊度测量系统具有室和具有防水外壳的传感器，光源，第一聚光装置，用于聚焦从光源发射的光并将其传送到样品液体中;第二聚光装置，用于收集 当通过样品液体时，产生聚焦光的至少一个散射光，用于接收收集的光从而产生电子信号的光电二极管，以及用于处理电子信号的电子板。 特别地，水密壳体具有倾斜的底部，光检测器包括用于检测分离的浊度测量范围的至少两个光电二极管，或者插入物被放置在腔室的底部，具有第一和第二插入通道，每个插入通道的轴指向 以防止水密壳体中的一个圆柱形通道的轴线捕获光。

    Conveyor chain tension monitor
    26.
    发明授权
    Conveyor chain tension monitor 有权
    输送链张力监测仪

    公开(公告)号：US08387777B2

    公开(公告)日：2013-03-05

    申请号：US12574417

    申请日：2009-10-06

    申请人： Eugene Tokhtuev ,  Christopher Owen ,  William M. Christensen ,  Anatoly Skirda ,  Viktor Slobodyan ,  Richard O. Ruhr ,  Paul R. Kraus ,  Mark Lorenz

    发明人： Eugene Tokhtuev ,  Christopher Owen ,  William M. Christensen ,  Anatoly Skirda ,  Viktor Slobodyan ,  Richard O. Ruhr ,  Paul R. Kraus ,  Mark Lorenz

    IPC分类号： B65G43/00

    CPC分类号： B65G43/00 ,  B65G43/02 ,  G01L5/101

    摘要： At least one single link of a conveyor chain is configured to support a tension load cell. A main body portion of the link includes a central cavity sized to contain the load cell, which has been inserted therein through an opening of the main body portion, and at least one auxiliary cavity to contain at least one battery cell and circuitry. A cap portion of the link closes off the opening into the cavity to enclose the load cell therein. One or both of the main body and cap portions may include a bore to receive a fastener for attaching to an end of the inserted load cell, and both portions include a bore oriented to receive a pin of a mating dual link of the conveyor chain. The cap portion may also include anti-rotation surfaces to mate with one or both of: the load cell and the opening.

    摘要翻译： 传送链的至少一个单一链接被配置成支撑张力传感器。 连杆的主体部分包括中心腔，其尺寸设置成容纳已经通过主体部分的开口插入其中的测力传感器，以及至少一个辅助腔，以容纳至少一个电池单元和电路。 连杆的盖部分封闭了进入腔体的开口，以将负载传感器封闭在其中。 主体和盖部分中的一个或两个可以包括用于接收紧固件的孔，用于附接到插入的测力传感器的端部，并且两个部分包括定向成接收输送链的配合双连杆的销的孔。 盖部分还可以包括防旋转表面，以与负载传感器和开口中的一个或两者配合。

    Methods for calibrating a fluorometer
    27.
    发明授权
    Methods for calibrating a fluorometer 有权
    校准荧光计的方法

    公开(公告)号：US08352207B2

    公开(公告)日：2013-01-08

    申请号：US12750814

    申请日：2010-03-31

    申请人： Eugene Tokhtuev ,  Christopher J. Owen ,  Soren K. Tryggestad ,  Anna Pilipchenko

    发明人： Eugene Tokhtuev ,  Christopher J. Owen ,  Soren K. Tryggestad ,  Anna Pilipchenko

    IPC分类号： G01N21/64 ,  G06F19/00

    CPC分类号： G01N21/278 ,  G01N21/274 ,  G01N21/645 ,  G01N2201/0221

    摘要： Some embodiments provide methods for calibrating a fluorometer in order to account for one or more optical properties of a water sample affecting fluorescence measurements. In some cases one or more calibration solutions are prepared with sample water from a specific field site. Fluorescence measurements are taken from a water sample and one or more of the calibration solutions, and calibration parameters are determined based on the measurements. In some cases a calibration solution is prepared by spiking sample water to include a higher concentration of a fluorescent tracer and measurements are taken to characterize a calibration slope coefficient. In some cases a calibration solution is prepared by adding an acid and measurements are taken to characterize a background fluorescence in the sample.

    摘要翻译： 一些实施方案提供校准荧光计的方法，以便考虑影响荧光测量的水样品的一种或多种光学性质。 在某些情况下，使用来自特定场地的样品水制备一种或多种校准溶液。 从水样品和一个或多个校准溶液中取出荧光测量，并且基于测量确定校准参数。 在一些情况下，通过加样样品水以制备更高浓度的荧光示踪剂并且进行测量以表征校准斜率系数来制备校准溶液。 在某些情况下，通过添加酸制备校准溶液，并进行测量以表征样品中的背景荧光。

    Gear flow meter with optical sensor
    29.
    发明授权
    Gear flow meter with optical sensor 有权
    齿轮流量计带光学传感器

    公开(公告)号：US08069719B2

    公开(公告)日：2011-12-06

    申请号：US12369501

    申请日：2009-02-11

    申请人： Eugene Tokhtuev ,  Christopher Owen ,  Anatoly Skirda ,  Viktor Slobodyan ,  Richard Mehus

    发明人： Eugene Tokhtuev ,  Christopher Owen ,  Anatoly Skirda ,  Viktor Slobodyan ,  Richard Mehus

    IPC分类号： G01F3/04

    CPC分类号： G01F3/10

    摘要： Embodiments of the invention provide devices and methods for measuring fluid volume. Devices according to some embodiments include a chamber, having a pair of gears rotatably mounted therewithin. Fluid flow through the chamber causes rotation of the gears, such that each rotation and/or partial rotation results in a known volume of the fluid passing through the chamber. An optical sensor positioned outside of the chamber, can view the rotating gears through a substantially transparent chamber wall. The optical sensor can view an optical characteristic of one or both of the gears, and based upon this data, fluid volume, flow rate, and/or flow direction can be determined. Devices and methods disclosed herein can provide for improved precision in fluid flow meter measurement. In addition, the devices and methods used herein can be more durable and easier to fabricate than previously known positive displacement flow meters.

    摘要翻译： 本发明的实施例提供了用于测量流体体积的装置和方法。 根据一些实施例的装置包括具有可旋转地安装在其中的一对齿轮的腔室。 通过腔室的流体流动导致齿轮的旋转，使得每个旋转和/或部分旋转导致通过腔室的已知体积的流体。 定位在室外的光学传感器可通过基本上透明的室壁观察旋转齿轮。 光学传感器可以观察一个或两个齿轮的光学特性，并且基于该数据，可以确定流体体积，流速和/或流动方向。 本文公开的装置和方法可以提供流体流量计测量的改进精度。 此外，本文所使用的装置和方法可以比先前已知的正排量流量计更加耐用和容易制造。