公开(公告)号：US20170299517A1

公开(公告)日：2017-10-19

申请号：US15485839

申请日：2017-04-12

申请人： Ezzat Hegazi ,  Vincent Cunningham ,  Christof Brunner ,  Christoph Stamm

发明人： Ezzat Hegazi ,  Vincent Cunningham ,  Christof Brunner ,  Christoph Stamm

IPC分类号： G01N21/64 ,  G01N33/28 ,  G01N21/25 ,  G02B7/182 ,  G02B5/10

CPC分类号： G01N21/645 ,  G01N21/255 ,  G01N33/2823 ,  G01N2201/061 ,  G02B5/10 ,  G02B7/004 ,  G02B7/1821 ,  G02B7/1825

摘要： An opto-mechanical apparatus including a hollow housing member having a first end and a second end, the housing member having a longitudinal axis, a parabolic mirror positioned on a side of to the first end of the housing member, and a mirror adjustment mechanism attached to the second end of the housing member, the mirror adjustment mechanism connected to the parabolic mirror through the housing member, the mirror adjustment mechanism configured to adjust an axial position of the parabolic mirror along the longitudinal axis and to adjust a radial position of the parabolic mirror about the longitudinal axis.

公开(公告)号：US20170299516A1

公开(公告)日：2017-10-19

申请号：US15485803

申请日：2017-04-12

申请人： Ezzat Hegazi ,  Vincent Cunningham ,  Christof Brunner ,  Christoph Stamm

发明人： Ezzat Hegazi ,  Vincent Cunningham ,  Christof Brunner ,  Christoph Stamm

IPC分类号： G01N21/64 ,  G01N33/28

CPC分类号： G01N21/645 ,  G01N21/85 ,  G01N33/28 ,  G01N2021/6463 ,  G01N2201/0621 ,  G01N2201/0696

摘要： Methods and systems for determining contamination in a petroleum-based sample, including irradiating the petroleum-based sample with a light beam from a light source such that a fluorescence signal is generated, guiding, by a mirror, the fluorescence signal to a gear-less rotating diffraction grating, the gear-less rotating diffraction grating spatially separating a fluorescence wavelength from the florescence signal, detecting, by an optical detector, fluorescence wavelength, transforming the fluorescence wavelength into a spectral contour diagram, the spectral contour diagram comprising a fluorescence wavelength variation over time, and determining, the contamination in the petroleum-based sample using the spectral contour diagram.

公开(公告)号：US20070237679A1

公开(公告)日：2007-10-11

申请号：US11392814

申请日：2006-03-30

申请人： Ezzat Hegazi

发明人： Ezzat Hegazi

IPC分类号： G01N21/64

CPC分类号： G01N21/645 ,  G01N21/6402 ,  G01N21/6456 ,  G01N33/2829 ,  G01N2021/6421

摘要： The apparatus for measuring concentrations of fuel mixtures using depth-resolved laser-induced fluorescence is a fluorometer equipped with a sample container holder that is movable in the path of the beam from the light source. Fluorescent emissions from the sample mixture pass at 90° to the excitation light path through a slit that is narrow enough that the emission intensity is effectively produced by a thin layer of the sample and focused on a monochromator, with successive thin layers receiving nonuniform excitation radiation due to reduction of intensity along the excitation light source path with increasing depth penetration and due to reabsorption of emitted fluorescence from adjacent layers. The method has a first mode in which the emission spectrum is scanned at a fixed depth, and a second mode in which the sample is moved relative to the emission monochromator slit to vary the depth while keeping the emission wavelength fixed.

摘要翻译： 用于使用深度分辨激光诱导荧光测量燃料混合物浓度的装置是配备有可在来自光源的光束的路径中移动的样品容器保持器的荧光计。 来自样品混合物的荧光发射通过狭缝足够长的狭缝足以使得发射强度由样品的薄层有效地产生并且聚焦在单色仪上的狭缝的90°，其中连续的薄层接收不均匀的激发辐射 由于沿着激发光源路径的强度随着深度穿透度的增加而降低，并且由于从相邻层发射的荧光的再吸收。 该方法具有其中以固定深度扫描发射光谱的第一模式和第二模式，其中样本相对于发射单色仪狭缝移动以改变深度，同时保持发射波长固定。