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公开(公告)号：US07382456B2
公开(公告)日：2008-06-03
申请号：US11636810
申请日：2006-12-11
Applicant: Sebastien Tixier , Daniel A. Gordon , Frank M. Haran
Inventor： Sebastien Tixier , Daniel A. Gordon , Frank M. Haran
CPC classification number: G01N21/251 , G01J3/36 , G01N21/31 , G01N21/3559 , G01N21/3563 , G01N21/86 , G01N2021/3137 , G01N2021/3148 , G01N2021/3155 , G01N2021/3166 , G01N2021/3188 , G01N2021/8663 , G01N2021/869
Abstract: A spectroscopic sensor for measuring flat sheet product is disclosed. The disclosed sensor uses a combination of spectrometers and single-channel detectors and filters together with a broadband source of illumination to optimally measure multiple properties of a flat sheet product. A spectrometer is used to measure over a spectral range where an easily configurable set of wavelength channels is needed and where the signal-to-noise ratios and spectral resolutions of the channels are consistent with the spectral range and number of pixels of the spectrometer; while one or more single channel detector and filter combinations are used to measure, with high signal-to-noise ratio, at specific wavelengths within or outside the spectral range of the spectrometer(s). Therefore, the single channel detectors can be used to complement the information provided by a spectrometer or to extend the working range of a spectrometer by providing single wavelength measurements anywhere in the visible, near-IR or mid-IR spectral regions.
Abstract translation: 公开了一种用于测量平板产品的光谱传感器。 所公开的传感器使用光谱仪和单通道检测器和滤波器的组合以及宽带光源来最佳地测量平板产品的多个性质。 光谱仪用于在光谱范围内测量，其中需要容易配置的一组波长信道，并且其中信道的信噪比和光谱分辨率与光谱仪的光谱范围和像素数量一致; 而一个或多个单通道检测器和滤波器组合用于以高的信噪比来测量在光谱仪的光谱范围内或外的特定波长。 因此，可以使用单通道检测器来补充光谱仪提供的信息，或通过在可见光，近红外或中红外光谱区域中的任何地方提供单个波长测量来扩展光谱仪的工作范围。
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Patent Agency Ranking
公开(公告)号：US5019710A
公开(公告)日：1991-05-28
申请号：US331404
申请日：1989-03-30
Applicant: Gunnar Wennerberg , Daniel A. Gordon , Harriss T. King
Inventor： Gunnar Wennerberg , Daniel A. Gordon , Harriss T. King
CPC classification number: G01N21/86 , G01N2021/8645 , G01N2201/0826 , G01N2201/0833 , G01N2201/1085
Abstract: A system for detecting optically-sensitive properties of sheet materials during manufacture includes a first group of bundles of optical fibers that convey light to selected transmitting locations adjacent one face of the sheet material. The system further includes a second group of bundles of optical fibers that collect and convey light transmitted through the sheet material to a light detector. The light detector measures the intensity of light received from each of the bundles of the second group to provide measurements of optically-sensitive properties of the sheet material at selected cross-directional locations.
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公开(公告)号：US20070153281A1
公开(公告)日：2007-07-05
申请号：US11636810
申请日：2006-12-11
Applicant: Daniel A. Gordon , Frank M. Haran , Sebastien Tixier
Inventor： Daniel A. Gordon , Frank M. Haran , Sebastien Tixier
IPC: G01J3/51
CPC classification number: G01N21/251 , G01J3/36 , G01N21/31 , G01N21/3559 , G01N21/3563 , G01N21/86 , G01N2021/3137 , G01N2021/3148 , G01N2021/3155 , G01N2021/3166 , G01N2021/3188 , G01N2021/8663 , G01N2021/869
Abstract: A spectroscopic sensor for measuring flat sheet product is disclosed. The disclosed sensor uses a combination of spectrometers and single-channel detectors and filters together with a broadband source of illumination to optimally measure multiple properties of a flat sheet product. A spectrometer is used to measure over a spectral range where an easily configurable set of wavelength channels is needed and where the signal-to-noise ratios and spectral resolutions of the channels are consistent with the spectral range and number of pixels of the spectrometer; while one or more single channel detector and filter combinations are used to measure, with high signal-to-noise ratio, at specific wavelengths within or outside the spectral range of the spectrometer(s). Therefore, the single channel detectors can be used to complement the information provided by a spectrometer or to extend the working range of a spectrometer by providing single wavelength measurements anywhere in the visible, near-IR or mid-IR spectral regions.
Abstract translation: 公开了一种用于测量平板产品的光谱传感器。 所公开的传感器使用光谱仪和单通道检测器和滤波器的组合以及宽带光源来最佳地测量平板产品的多个性质。 光谱仪用于在光谱范围内测量，其中需要容易配置的一组波长信道，并且其中信道的信噪比和光谱分辨率与光谱仪的光谱范围和像素数量一致; 而一个或多个单通道检测器和滤波器组合用于以高的信噪比来测量在光谱仪的光谱范围内或外的特定波长。 因此，可以使用单通道检测器来补充光谱仪提供的信息，或通过在可见光，近红外或中红外光谱区域中的任何地方提供单个波长测量来扩展光谱仪的工作范围。
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公开(公告)号：US5793486A
公开(公告)日：1998-08-11
申请号：US752579
申请日：1996-11-21
Applicant: Daniel A. Gordon , Mark J. Alguard
Inventor： Daniel A. Gordon , Mark J. Alguard
Abstract: Disclosed is an apparatus for measuring on-line the color and color-related properties of a moving sheet. Contrast ratio reflectance measurements are made for providing opacity corrections substantially in real time for a full color spectrum. An optical color sensor in accordance with the invention includes a pair of synchronized spectrometers, the first spectrometer being aligned to view a region of the sheet backed with a highly reflective ("white") material and the second spectrometer being aligned to view a region of the sheet backed with a highly absorptive ("black") material. The use of two spectrometers permits substantially simultaneous "black" and "white" measurements for a full color spectrum. The optical color sensing system further includes two light sources, a flashlamp and a continuously energized tungsten filament lamp. Light beams from the two sources are combined to form a sheet-illuminating third beam approximating the D65 standard source. The intensity of the flashlamp is electronically controlled to maintain the balance of UV to visible light that characterizes the standard source. The color sensor further includes a sheet backing system including a rotatable standard wheel carrying a white standard tile. Provision is made to permit rotation of the standard wheel and to standardize the sensor off-sheet while maintaining isolation of the white standard tile from the paper mill environment. The sheet backing system includes a paper guide plate defining an annular vortex space into which air is introduced from a pressurized source. A low pressure region thereby produced in the vortex space draws the paper sheet toward the guide plate. At the same time, circulating air spirals outwardly from the vortex space to form a thin air film or air bearing between the sheet and the paper guide. Sheet flutter is thereby minimized and damage to the sheet is prevented.
Abstract translation: 公开了一种用于在线测量移动片材的颜色和颜色相关性质的装置。 对比度反射率测量用于为全色谱实质上实时提供不透明度校正。 根据本发明的光学颜色传感器包括一对同步的光谱仪，第一光谱仪被对准以观察具有高反射（“白”）材料的片材的区域，并且第二光谱仪被对准以观察 该片材具有高吸收性（“黑色”）材料。 使用两个光谱仪可以实现全色同步的“黑色”和“白色”测量。 光学颜色感测系统还包括两个光源，闪光灯和连续通电的钨丝灯。 来自两个源的光束被组合以形成近似D65标准源的片状照明第三光束。 闪光灯的强度是电子控制的，以保持紫外线到可见光的平衡，表征标准源。 该颜色传感器还包括一个片材背衬系统，其包括一个承载白色标准砖的可旋转的标准轮。 规定允许标准轮的旋转并标准化传感器脱模，同时保持白色标准砖与造纸厂环境的隔离。 片材背衬系统包括限定了从加压源引入空气的环形涡流空间的导纸板。 由此在涡流空间中产生的低压区将纸张朝向引导板拉出。 同时，循环空气从涡流空间向外螺旋形成在薄片和导纸板之间形成薄的空气薄膜或空气轴承。 因此，片材颤动最小化并且防止了片材损坏。
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公开(公告)号：US5642192A
公开(公告)日：1997-06-24
申请号：US489362
申请日：1995-06-12
Applicant: Daniel A. Gordon , Mark J. Alguard
Inventor： Daniel A. Gordon , Mark J. Alguard
Abstract: Disclosed is an apparatus for measuring on-line the color and color-related properties of a moving sheet. Contrast ratio reflectance measurements are made for providing opacity corrections substantially in real time for a full color spectrum. An optical color sensor in accordance with the invention includes a pair of synchronized spectrometers, the first spectrometer being aligned to view a region of the sheet backed with a highly reflective ("white") material and the second spectrometer being aligned to view a region of the sheet backed with a highly absorptive ("black") material. The use of two spectrometers permits substantially simultaneous "black" and "white" measurements for a full color spectrum. The optical color sensing system further includes two light sources, a flashlamp and a continuously energized tungsten filament lamp. The color sensor further includes a sheet backing system including a rotatable standard wheel carrying a white standard tile. Provision is made to permit rotation of the standard wheel and to standardize the sensor off-sheet while maintaining isolation of the white standard tile from the paper mill environment. The sheet backing system includes a paper guide plate defining an annular vortex space into which air is introduced from a pressurized source. A low pressure region thereby produced in the vortex space draws the paper sheet toward the guide plate. At the same time, circulating air spirals outwardly from the vortex space to form a thin air film or air bearing between the sheet and the paper guide.
Abstract translation: 公开了一种用于在线测量移动片材的颜色和颜色相关性质的装置。 对比度反射率测量用于为全色谱实质上实时提供不透明度校正。 根据本发明的光学颜色传感器包括一对同步的光谱仪，第一光谱仪被对准以观察具有高反射（“白”）材料的片材的区域，并且第二光谱仪被对准以观察 该片材具有高吸收性（“黑色”）材料。 使用两个光谱仪可以实现全色同步的“黑色”和“白色”测量。 光学颜色感测系统还包括两个光源，闪光灯和连续通电的钨丝灯。 该颜色传感器还包括一个片材背衬系统，其包括一个承载白色标准砖的可旋转的标准轮。 规定允许标准轮的旋转并标准化传感器脱模，同时保持白色标准砖与造纸厂环境的隔离。 片材背衬系统包括限定了从加压源引入空气的环形涡流空间的导纸板。 由此在涡流空间中产生的低压区将纸张朝向引导板拉出。 同时，循环空气从涡流空间向外螺旋形成在薄片和导纸板之间形成薄的空气薄膜或空气轴承。
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6.发明授权
公开(公告)号：US4606644A
公开(公告)日：1986-08-19
申请号：US755222
申请日：1985-07-15
Applicant: Daniel A. Gordon
Inventor： Daniel A. Gordon
CPC classification number: G01N21/534 , G01N2021/536 , G01N2201/0813
Abstract: A gas measuring device has a source capable of emitting a beam of radiation aligned to impinge a detector. A housing means encloses the beam. The housing means has a plurality of apertures permitting the gas to enter the housing means, to intercept the beam, and to exit from the housing means. The device further comprises means to control the amount of thermal radiation reaching the detector.
Abstract translation: 气体测量装置具有能够发射对准的射束以撞击检测器的源。 外壳装置围住梁。 壳体装置具有允许气体进入壳体装置的多个孔，以拦截梁，并从壳体装置退出。 该装置还包括用于控制到达检测器的热辐射量的装置。
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