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    Near UV absorption spectrometer and method for using the same
    2.
    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。

    Acoustic fluid presence/absence detection
    10.
    发明授权
    Acoustic fluid presence/absence detection 有权
    声流体存在/不存在检测

    公开(公告)号：US08120500B2

    公开(公告)日：2012-02-21

    申请号：US12329788

    申请日：2008-12-08

    申请人： Eugene Tokhtuev ,  Christopher J. Owen ,  Anatoly Skirda ,  Viktor Slobodyan ,  Anna Pilipchenko

    发明人： Eugene Tokhtuev ,  Christopher J. Owen ,  Anatoly Skirda ,  Viktor Slobodyan ,  Anna Pilipchenko

    IPC分类号： G08B21/00 ,  G01F23/296

    CPC分类号： G01F23/0007 ,  A61M5/1684 ,  A61M2205/3375 ,  G01F23/2961

    摘要： An acoustic sensor detects presence and/or absence of fluid in a fluid delivery medium. The acoustic sensor detects fluid absence based on the difference of the speed of sound between air and a fluid. For example, the acoustic sensor may detect fluid absence based on a phase shift between acoustic signals transmitted through the fluid delivery medium when fluid is present as compared to acoustic signals transmitted through the fluid delivery medium when fluid is absent, e.g., when air or bubbles are present in the fluid delivery medium.

    摘要翻译： 声传感器检测流体输送介质中流体的存在和/或不存在。 声学传感器基于空气和流体之间的声速的差异来检测流体不存在。 例如，当存在流体时，声传感器可以基于通过流体输送介质传输的声信号之间的相移来检测流体不存在，与当流体不存在时通过流体输送介质传播的声信号相比，例如当空气或气泡 存在于流体输送介质中。