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    Optical analyzer for agricultural products
    21.
    发明授权
    Optical analyzer for agricultural products 失效
    农业产品光学分析仪

    公开(公告)号：US4037970A

    公开(公告)日：1977-07-26

    申请号：US653848

    申请日：1976-01-30

    Applicant: Donald R. Webster ,  Eugene R. Ganssle

    Inventor： Donald R. Webster ,  Eugene R. Ganssle

    IPC: G01J1/18 ,  G01J3/12 ,  G01J3/28 ,  G01N21/31 ,  G01N21/35 ,  G01N33/10 ,  G01J3/48

    CPC classification number: G01N21/314 ,  G01N33/10 ,  G01J2001/182 ,  G01J2003/1243 ,  G01J2003/2866 ,  G01N2021/3129 ,  G01N2021/3159 ,  G01N2021/4769 ,  G01N21/35 ,  G01N21/3563 ,  G01N21/4738 ,  G01N2201/1283

    Abstract: An automatic test instrument for gaging the percentage of various constituents in organic substances by comparing the reflective optical density of the subject at various wavelengths. Narrow band optical filters are connected together in the form of a rotatable paddle wheel positioned so that the filters can be individually swept through the incident light path between the specimen and wideband light source. As the filter wheel turns, the band of light passed by each filter is progressively shifted with the changing angle of the filter relative to the light path. The filter wheel configuration includes opaque vanes extending from the ends of the filters to periodically interrupt the passage of light to the specimen. Photocells are positioned to sense the level of light reflected from the specimen. The output of the photocells is sampled at predetermined times relative to the rotation of the filter wheel to yield values indicative of reflected intensity at certain wavelengths. Using these values, an electronic circuit in one embodiment calculates three optical density difference values corresponding to moisture, protein and oil content of the specimen. The difference values are automatically inserted in three linear equations which are solved to obtain readings representing the true percentages of oil, water and protein contained in the specimen. Each time a new specimen is loaded for testing, the instrument is automatically calibrated against a standard sample, preferably Teflon (Trademark). The output of the photocells is amplified in a special circuit which subtracts the level of dark period current from the output when the photocells are illuminated.

    SPECIMEN PROCESSING AND ANALYZING SYSTEMS AND METHODS USING PHOTOMETRY
    25.
    发明申请
    SPECIMEN PROCESSING AND ANALYZING SYSTEMS AND METHODS USING PHOTOMETRY 审中-公开
    样本处理和分析系统和使用光度法的方法

    公开(公告)号：WO1993009440A1

    公开(公告)日：1993-05-13

    申请号：PCT/US1992009097

    申请日：1992-10-27

    Applicant: BAXTER DIAGNOSTICS INC.

    Inventor： BAXTER DIAGNOSTICS INC. ,  GRINER, Christopher, D.

    IPC: G01N35/02

    CPC classification number: G01N21/253 ,  G01N21/274 ,  G01N35/028 ,  G01N2201/0407 ,  G01N2201/0446 ,  G01N2201/08 ,  G01N2201/1283

    Abstract: A system (10) uses a photometer that establishes an optical channel between a light emitter (102) and a light detector (106). The photometer analyzes a specimen while it occupies a well (48) in a tray (12). A movable platform (74) transports the tray (12) to the optical channel for analysis and removes the tray (12) from the optical channel after analysis. The system calibrates the movable platform (74) to assure proper alignment between the specimen and the photometric apparatus used to analyze the specimen. The system also calibrates the optical channel without use of an external reference.

    Abstract translation: 系统（10）使用在光发射器（102）和光检测器（106）之间建立光通道的光度计。 光度计在托盘（12）中占据井（48）时对样本进行分析。 可移动平台（74）将托盘（12）运送到光学通道用于分析，并在分析之后从光学通道中移除托盘（12）。 系统校准可移动平台（74），以确保样品与用于分析样品的测光设备之间的正确对准。 该系统还可以校准光通道而不使用外部参考。

    Method and apparatus for zero-calibration of a spectroscopy system
    26.
    发明公开
    Method and apparatus for zero-calibration of a spectroscopy system 失效
    Verfahren und Vorrichtung zur Null-Eichung eines Spektroskopiesystems。

    公开(公告)号：EP0618442A1

    公开(公告)日：1994-10-05

    申请号：EP94302097.4

    申请日：1994-03-23

    Applicant: ALBION INSTRUMENTS

    Inventor： Mitchell, John ,  Gregonis, Donald E. ,  Miles, Scott D. ,  Beck, Kent F.

    IPC: G01N21/65 ,  G01J3/44

    CPC classification number: G01N21/65 ,  G01N2201/127 ,  G01N2201/1283

    Abstract: A Raman spectroscopy system and method for determining a zero-calibration level. A gas sample chamber (54) is located within a resonant cavity. A light source (22) is located to cause light to be incident on the gas sample, the light resonates in the resonant cavity. Typically, the light source and resonator cavity in conjunction form a laser source which propagates coherent, monochromatic laser light energy through the gas sample. This causes Raman scattering from the gases constituent in the gas sample. The amount of Raman scattered light is measured at detectors (72) along with light due to dark noise inherent in the detectors and glow from the laser source, i.e., light at wavelengths other than the laser light wavelength produced by the laser source. The resonator cavity is obstructed, via a ball (380) inserted into the path of the laser beam for example, to prevent resonance. If the light source and resonant cavity in conjunction form a laser, prevention of resonance causes cessation of lasing. Thus, substantially no Raman scattering occurs and detectors measure light due primarily to background noise. The origin of the measurement scale for the detectors may then be set at the measured intensity, i.e., a zero-calibration level for the detectors may be determined.

    Abstract translation: 用于确定零校准水平的拉曼光谱系统和方法。 气体样品室（54）位于谐振腔内。 定位光源（22）以使光入射到气体样品上，所述光在谐振腔中共振。 通常，光源和谐振腔共同形成激光源，其通过气体样品传播相干的单色激光光能。 这导致来自气体样品中的气体成分的拉曼散射。 由于检测器固有的暗噪声和来自激光源的辉光，即在由激光源产生的激光波长以外的波长处的光，在检测器（72）处测量拉曼散射光的量。 通过例如插入激光束的路径中的球（380）阻挡谐振腔，以防止共振。 如果光源和谐振腔结合形成激光，防止共振就会导致激光的停止。 因此，基本上不发生拉曼散射，并且检测器主要由背景噪声测量光。 然后可以将所述检测器的测量标尺的原点设置为所测量的强度，即可以确定检测器的零校准水平。

    SPECIMEN PROCESSING AND ANALYZING SYSTEMS AND METHODS USING PHOTOMETRY
    28.
    发明公开
    SPECIMEN PROCESSING AND ANALYZING SYSTEMS AND METHODS USING PHOTOMETRY 失效
    系统进行处理和分析PROBER使用光度法。

    公开(公告)号：EP0565693A1

    公开(公告)日：1993-10-20

    申请号：EP92922900.0

    申请日：1992-10-27

    Applicant: BAXTER DIAGNOSTICS INC.

    Inventor： GRINER, Christopher, D.

    IPC: G01N21 ,  G01N35

    CPC classification number: G01N21/253 ,  G01N21/274 ,  G01N35/028 ,  G01N2201/0407 ,  G01N2201/0446 ,  G01N2201/08 ,  G01N2201/1283

    Abstract: Un système (10) utilise un photomètre qui établit un canal optique entre un émetteur de lumière (102) et un détecteur de lumière (106). Le photomètre analyse un spécimen lorsqu'il se trouve dans l'avéole (48) d'un plateau (12). Une plate-forme mobile (74) transporte le plateau (12) vers le canal optique en vue d'une analyse et retire le plateau (12) du canal optique après l'analyse. Le système calibre la plate-forme mobile (74) afin d'assurer un alignement correct entre le spécimen et l'appareil photométrique utilisé pour analyser le spécimen. Le système calibre également le canal optique sans utiliser une référence externe.

    Spectrophotometer having means for simultaneous modulation, switching and wavelength selection of a light source
    30.
    发明公开
    Spectrophotometer having means for simultaneous modulation, switching and wavelength selection of a light source 失效
    分光光度计具有用于同时调制，开关和光源的波长选择。

    公开(公告)号：EP0479379A2

    公开(公告)日：1992-04-08

    申请号：EP91202513.7

    申请日：1991-09-27

    Applicant: EASTMAN KODAK COMPANY

    Inventor： Lowne, Alan John, c/o EASTMAN KODAK CO. ,  Sandifer, James Roy, c/o EASTMAN KODAK CO. ,  Uerz, David Scott, c/o EASTMAN KODAK CO. ,  Switalski, Steven Casimir, c/o EASTMAN KODAK CO. ,  Liu, Huse-Yang, c/o EASTMAN KODAK CO.

    IPC: G01J3/08 ,  G02B26/04 ,  G01N21/31

    CPC classification number: G01J3/42 ,  G01J3/02 ,  G01J3/0218 ,  G01J3/0232 ,  G01J3/0235 ,  G01J3/0289 ,  G01J3/08 ,  G01J3/44 ,  G01J2001/4242 ,  G01J2003/1213 ,  G01J2003/2866 ,  G01N21/314 ,  G01N21/359 ,  G01N2021/3133 ,  G01N2021/3159 ,  G01N2021/3174 ,  G01N2021/4742 ,  G01N2201/0826 ,  G01N2201/1283 ,  G02B26/04

    Abstract: In known spectrophometers, a single light source is used to illuminate both a sample and a reference. A single detector is used to detect the light at both the sample and the reference. A chopper wheel having aperture portions is used to allow the light to pass through a selected filter in the apertures. However, in such devices, the beams from the sample and the reference arrive at the detector at the same time and movable shutters need to be employed. Described herein is a spectrophotometer (10) comprising a single light source (12), a single detector (14), optics (30, 36, 340, 42, 44, 46, 48, 50, 52, 54, 56, 58, 90, 92, 100) for dually and alternatively reading a sample (94) and a reference (96), and which employs only one moving part. That moving part is a chopper (42) containing multiple pass-through apertures (60a, 60b, 60c, 60d, 60e, 60f), each filled with a unique bandpass filter to select wavelengths to specifically illuminate the sample (94) or reference (96). To inform the spectrophotometer (10) whether and when it is reading the sample (94) or the reference (96), energy relay means (70a, 70b, 70c, 70d, 70e, 70f, 70g, 70h, 70i, 70j, 70k, 70l) are provided between an energy emitter (80) and an energy detector (82) in an amount of at least twice the number of the pass-through apertures (60a, 60b, 60c, 60d, 60e, 60f).

    Abstract translation: 在已知的spectrophometers，单个光源用于照射这两个样品和参考。 单个检测器用于在两个样品和参考检测的光。 具有开口部的斩波轮用于允许光穿过光圈选择的滤波器。 但是，在谋求器件中，从样品与参考光束在检测器到达Sametime和可动百叶窗需要采用。 描述中是分光光度计（10），包括一个单一的光源（12），一个单一的检测器（14），光学元件（30，36，340，42，44，46，48，50，52，54，56，58， 90，92，100），用于双重和可选地读取样品（94）和参考（96），并且其仅使用一个移动部分。 即移动部件是一个斩波器（42）通过通Aperture的（60A，60F 60B，60C，60D，60E），每个填充有独特的带通滤波器包含多个选择波长特异性照射样本（94）或参考（ 96）。 为了通知分光光度计（10）是否与当读取样品（94）或所述基准（96），能量中继器的装置（70A，70B，70C，70D，70E，70F，70克，70H，70I，70J，70K ，在能量发射器（80）和在上的量的能量检测器（82）之间设置70L）的至少两倍的直通Aperture的（60A，60B，60C，60D，60E的数目，60F）。

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