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公开(公告)号：EP0122749B1
公开(公告)日：1988-04-20
申请号：EP84302282.3
申请日：1984-04-03
发明人： Shields, John
CPC分类号： G01N33/06 , G01N21/3577 , Y10S250/91
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公开(公告)号：EP0388082A3
公开(公告)日：1991-11-06
申请号：EP90302486.7
申请日：1990-03-08
发明人： Shields, Jack
CPC分类号： G01J3/02 , G01J3/0229 , G01J2001/448 , G01J2003/1247 , G01N21/3563 , G01N21/359 , G01N21/85 , G01N2021/3133 , G01N2021/3148 , G01N2021/3174 , G01N2021/8592
摘要： Apparatus for quantitative analysis of a material sample, such as whole grain, as a function of optical characteristics thereof includes a light source and a solid state detector of silicon or other suitable construction. A material sample is positioned between the light source and the detector, and light energy is focused through the sample onto the detector at a plurality of preselected wavelengths in the near-infrared range of 800-1100 nm. Illumination wavelength is selectively controlled by an opaque disc having a central axis and a plurality of apertures around the periphery at uniform radius from the disc axis. A plurality of filter elements are carried by the disc over respective ones of the peripheral apertures and have transmission characteristics corresponding to the plurality of preselected wavelengths. The filter elements are carried in a continuous circumferential array around the disc periphery, with the array including at least one opaque section for chopping light energy incident on the detector. The disc is rotated about its axis in a continuous motion so that each filter element in turn intersects light energy transmitted through the sample. Analysis electronics is responsive to light energy incident on the detector at the plurality of preselected wavelengths to indicate a preselected characteristic of the material sample.
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公开(公告)号：EP0404207A2
公开(公告)日：1990-12-27
申请号：EP90115140.7
申请日：1985-11-11
发明人： Shields, John
CPC分类号： G01N33/04 , G01N21/0332 , G01N21/314 , G01N21/3577 , G01N2021/3129 , G01N2201/126 , G01N2201/12753
摘要： An optical cell and detector assembly for a spectrophotometric analysing apparatus which comprises a sample cell having walls (12, 14) of optically transparent material defining a sample cavity (20) having closely adjacent the sample cavity (20) a radiation detector (30) and adjacent an opposite wall a lens (36) whereby to focus radiation passing through the cell on to the detector. The apparatus may also comprise optical means (42) for focussing the beam onto the sample cell, chopper means (44) for periodically obscuring the beam, and filter means (48) for selecting one or more wavelengths from the beam. The sample under test is an aqueous emulsion and the filters are chosen to determine the concentration of the non aqueous components of the emulsion by measuring the water displaced by the components.
摘要翻译： 一种用于分光光度分析装置的光学单元和检测器组件，其包括具有光学透明材料的壁（12,14）的样品池，所述光学透明材料限定了与样品腔（20）紧密相邻的样品腔（20），辐射检测器（30）和 在相对的壁上邻近透镜（36），从而将通过单元的辐射聚焦到检测器上。 该装置还可以包括用于将光束聚焦到采样单元上的光学装置（42），用于周期性地模糊光束的斩波装置（44）和用于从该光束中选择一个或多个波长的滤光装置（48）。 被测样品是水性乳液，并且通过测量被组分置换的水来选择过滤器以确定乳液的非水性组分的浓度。
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公开(公告)号：EP0404207B1
公开(公告)日：1995-09-13
申请号：EP90115140.7
申请日：1985-11-11
发明人： Shields, John
CPC分类号： G01N33/04 , G01N21/0332 , G01N21/314 , G01N21/3577 , G01N2021/3129 , G01N2201/126 , G01N2201/12753
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公开(公告)号：EP0388082A2
公开(公告)日：1990-09-19
申请号：EP90302486.7
申请日：1990-03-08
发明人： Shields, Jack
CPC分类号： G01J3/02 , G01J3/0229 , G01J2001/448 , G01J2003/1247 , G01N21/3563 , G01N21/359 , G01N21/85 , G01N2021/3133 , G01N2021/3148 , G01N2021/3174 , G01N2021/8592
摘要： Apparatus for quantitative analysis of a material sample, such as whole grain, as a function of optical characteristics thereof includes a light source and a solid state detector of silicon or other suitable construction. A material sample is positioned between the light source and the detector, and light energy is focused through the sample onto the detector at a plurality of preselected wavelengths in the near-infrared range of 800-1100 nm. Illumination wavelength is selectively controlled by an opaque disc having a central axis and a plurality of apertures around the periphery at uniform radius from the disc axis. A plurality of filter elements are carried by the disc over respective ones of the peripheral apertures and have transmission characteristics corresponding to the plurality of preselected wavelengths. The filter elements are carried in a continuous circumferential array around the disc periphery, with the array including at least one opaque section for chopping light energy incident on the detector. The disc is rotated about its axis in a continuous motion so that each filter element in turn intersects light energy transmitted through the sample. Analysis electronics is responsive to light energy incident on the detector at the plurality of preselected wavelengths to indicate a preselected characteristic of the material sample.
摘要翻译： 作为其光学特性的函数的材料样品（例如全粒）的定量分析的装置包括光源和硅的固态检测器或其他合适的结构。 材料样品位于光源和检测器之间，并且光能量以800-1100nm的近红外范围内的多个预选波长在样品上聚焦到检测器上。 照明波长由具有中心轴和围绕圆周的多个孔的盘片轴的均匀半径选择性地控制。 多个滤光元件由盘承载在相应的外围孔上，具有对应于多个预选波长的透射特性。 过滤器元件以围绕盘周边的连续圆周阵列承载，阵列包括用于切割入射在检测器上的光能的至少一个不透明部分。 盘以连续运动的方式围绕其轴线旋转，使得每个过滤元件依次与透过样品的光能相交。 分析电子学响应于在多个预选波长处入射到检测器上的光能，以指示材料样品的预选特征。
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公开(公告)号：EP0404207A3
公开(公告)日：1992-02-05
申请号：EP90115140.7
申请日：1985-11-11
发明人： Shields, John
CPC分类号： G01N33/04 , G01N21/0332 , G01N21/314 , G01N21/3577 , G01N2021/3129 , G01N2201/126 , G01N2201/12753
摘要： An optical cell and detector assembly for a spectrophotometric analysing apparatus which comprises a sample cell having walls (12, 14) of optically transparent material defining a sample cavity (20) having closely adjacent the sample cavity (20) a radiation detector (30) and adjacent an opposite wall a lens (36) whereby to focus radiation passing through the cell on to the detector. The apparatus may also comprise optical means (42) for focussing the beam onto the sample cell, chopper means (44) for periodically obscuring the beam, and filter means (48) for selecting one or more wavelengths from the beam. The sample under test is an aqueous emulsion and the filters are chosen to determine the concentration of the non aqueous components of the emulsion by measuring the water displaced by the components.
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公开(公告)号：EP0182564B1
公开(公告)日：1991-03-13
申请号：EP85308178.4
申请日：1985-11-11
发明人： Shields, John
CPC分类号： G01N33/04 , G01N21/0332 , G01N21/314 , G01N21/3577 , G01N2021/3129 , G01N2201/126 , G01N2201/12753
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公开(公告)号：EP0182564A3
公开(公告)日：1988-09-21
申请号：EP85308178
申请日：1985-11-11
发明人： Shields, John
CPC分类号： G01N33/04 , G01N21/0332 , G01N21/314 , G01N21/3577 , G01N2021/3129 , G01N2201/126 , G01N2201/12753
摘要： 57 An optical cell and detector assembly for a spectrophotometric analysing apparatus which comprises a sample cell having walls of optically transparent material defining a sample cavity having closely adjacent the sample cavity a radiation detector and adjacent an opposite wall a lens whereby to focus radiation passing through the cell on to the detector. The apparatus may also comprise optical means for focussing the beam onto the sample cell, chopper means for periodically obscuring the beam, and filter means for selecting one or more wavelengths from the beam. The sample under test is an aqueous emulsion and the filters are chosen to determine the concentration of the non aqueous components of the emulsion by measuring the water displaced by the components.
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公开(公告)号：EP0182564A2
公开(公告)日：1986-05-28
申请号：EP85308178.4
申请日：1985-11-11
发明人： Shields, John
CPC分类号： G01N33/04 , G01N21/0332 , G01N21/314 , G01N21/3577 , G01N2021/3129 , G01N2201/126 , G01N2201/12753
摘要： 57 An optical cell and detector assembly for a spectrophotometric analysing apparatus which comprises a sample cell having walls of optically transparent material defining a sample cavity having closely adjacent the sample cavity a radiation detector and adjacent an opposite wall a lens whereby to focus radiation passing through the cell on to the detector. The apparatus may also comprise optical means for focussing the beam onto the sample cell, chopper means for periodically obscuring the beam, and filter means for selecting one or more wavelengths from the beam. The sample under test is an aqueous emulsion and the filters are chosen to determine the concentration of the non aqueous components of the emulsion by measuring the water displaced by the components.
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公开(公告)号：EP0122749A1
公开(公告)日：1984-10-24
申请号：EP84302282.3
申请日：1984-04-03
发明人： Shields, John
CPC分类号： G01N33/06 , G01N21/3577 , Y10S250/91
摘要： A method for the quantitative determination of fat in an aqueous fat emulsion sample, for example a milk sample, by an infra red transmission absorption technique employs a wave band characteristic of bending and scissoring of saturated carbon hydrogen bonds. A preferred waveband is that about 6.84 microns and it is further preferred to use the double wavelength, single cuvette system. Variations in accuracy caused by side chains or substituents on the fatty acid chains of the fat under test are substantially reduced.
摘要翻译： 通过红外透射吸收技术定量测定水性脂肪乳液样品（例如牛奶样品）中的脂肪的方法采用饱和碳氢键的弯曲和剪切特征的波段。 优选的波段是约6.84微米，并且更优选使用双波长单个比色皿系统。 侧链或所测脂肪酸链上的取代基引起的精度差异显着降低。
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