Optical analysis system and method for real time multivariate optical computing
    171.
    发明授权
    Optical analysis system and method for real time multivariate optical computing 有权
    用于实时多元光学计算的光学分析系统和方法

    公开(公告)号:US08154726B2

    公开(公告)日:2012-04-10

    申请号:US12094462

    申请日:2006-11-27

    Abstract: An optical analysis system and method for determining information carried by light include a multivariate optical element disposed in the system to receive a source light from an illumination source; filtering the source light through a spectral element in the optical element analysis system; reflecting the filtered light through an inner region of a cavity in a first direction of a sample to be measured, the cavity defining a second region disposed about the inner region; focusing the reflected light proximate the sample; reflecting the focused light from the sample through the second region in a second direction of a beamsplitter, the light being reflected from the sample carrying data from the sample; splitting the sample carrying light with the beamsplitter into a first light and a second light; optically filtering the data of the first light with the multivariate optical element into an orthogonal component; directing the first light filtered by the multivariate optical element onto a first photodetector; directing the second light onto a second photodetector; and comparing the orthogonal component to information present in the second light to determine a property of the sample.

    Abstract translation: 用于确定由光携带的信息的光学分析系统和方法包括设置在系统中以从照明源接收源光的多变量光学元件; 通过光学元件分析系统中的光谱元件对源光进行滤光; 通过待测样品的第一方向的空腔的内部区域反射经过滤光,所述空腔限定围绕所述内部区域设置的第二区域; 将反射光聚焦在样品附近; 在分束器的第二方向上反射来自样品的聚焦光通过第二区域,从样品反射的光从样品携带数据; 将带有分束器的携带光的样品分成第一光和第二光; 用多元光学元件将第一光的数据光学滤波为正交分量; 将由多元光学元件滤波的第一光引导到第一光电检测器上; 将第二光引导到第二光电检测器上; 以及将所述正交分量与存在于所述第二光中的信息进行比较,以确定所述样本的性质。

    OPTICAL CHARACTERISTIC MEASUREMENT DEVICE AND OPTICAL CHARACTERISTIC MEASUREMENT METHOD SUITABLE FOR SPECTRUM MEASUREMENT
    173.
    发明申请
    OPTICAL CHARACTERISTIC MEASUREMENT DEVICE AND OPTICAL CHARACTERISTIC MEASUREMENT METHOD SUITABLE FOR SPECTRUM MEASUREMENT 有权
    光学特性测量装置和光学特性测量方法适用于光谱测量

    公开(公告)号:US20120075628A1

    公开(公告)日:2012-03-29

    申请号:US13306941

    申请日:2011-11-29

    CPC classification number: G01J3/02 G01J1/0219 G01J3/0232 G01J3/28

    Abstract: An optical characteristic measurement device includes a photodetector and a processor. The photodetector has a detection surface greater than a light incident surface receiving light from a spectrometer. The processor is configured to obtain a measurement spectrum detected in a first detection area corresponding to the light incident surface and a signal intensity detected in a second detection area different from the light incident surface, correct a pattern prepared in advance and exhibiting a noise characteristic of the photodetector based on the signal intensity to calculate a first correction spectrum, subtract a correction value calculated based on the signal intensity from each component value of the measurement spectrum to calculate a second correction spectrum, and subtract each component value of the first correction spectrum from a corresponding component value of the second correction spectrum to calculate an output spectrum.

    Abstract translation: 光学特性测量装置包括光电检测器和处理器。 光电检测器具有大于接收来自光谱仪的光的光入射表面的检测表面。 处理器被配置为获得在与光入射面对应的第一检测区域中检测的测量光谱和在与光入射面不同的第二检测区域中检测的信号强度,校正预先准备的图案,并且显示噪声特性 光电检测器基于信号强度计算第一校正光谱,从每个测量光谱的分量值中减去基于信号强度计算的校正值,以计算第二校正光谱,并将第一校正光谱的每个分量值从 第二校正频谱的相应分量值来计算输出频谱。

    Method and apparatus for measuring the optical absorption of samples
    175.
    发明授权
    Method and apparatus for measuring the optical absorption of samples 有权
    测量样品光吸收的方法和装置

    公开(公告)号:US08035816B2

    公开(公告)日:2011-10-11

    申请号:US12295845

    申请日:2007-04-10

    Abstract: In a method and apparatus for measuring the optical absorption of samples having a light source (1), a photoelectric converter (8), a measurement beam path extending between the light source (1) and the converter (8), in which path the sample to be examined is arranged, a reference beam path extending between the light source (1) and the converter (8), in which path a reference sample is arranged, and a motor-driven chopper disc (10), the chopper disc (10) is configured with a first number of first openings (15) unblocking only the measurement beam path and a second number of second openings (16) unblocking only the path for the reference beam. A lock-in amplifier (21) and a device (17) for synchronising the lock-in amplifier (21) with the chopper disc (10) is connected to the converter (8) and an evaluation circuit (26) establishes the quotient of the transmitted intensity of the reference beam path detected by the converter (8) and the transmitted intensity of the measurement beam path detected by the converter (8) as a measurement for the concentration of the sample in such a way that the decrease in the intensity of the beam by absorption leads to an increase in sensitivity.

    Abstract translation: 在用于测量具有光源(1)的样品的光吸收的方法和装置中,光电转换器(8),在光源(1)和转换器(8)之间延伸的测量光束路径,其中路径 布置要检查的样本,在光源(1)和转换器(8)之间延伸的参考光束路径,其中布置参考样本的路径,以及电动驱动的斩波盘(10),斩波盘 10)配置有仅解除测量光束路径的第一数量的第一开口(15)和仅解除参考光束的路径的第二数量的第二开口(16)。 锁定放大器(21)和用于使锁定放大器(21)与斩波盘(10)同步的装置(17)连接到转换器(8),并且评估电路(26)建立 由转换器(8)检测的参考光束路径的透射强度和由转换器(8)检测的测量光束路径的透射强度作为样品浓度的测量,使得强度的降低 通过吸收导致光束的增加。

    SPECTROMETER FOR MEASURING MOVING SAMPLE MATERIAL AND THE METHOD
    177.
    发明申请
    SPECTROMETER FOR MEASURING MOVING SAMPLE MATERIAL AND THE METHOD 有权
    用于测量移动样品材料的光谱仪及其方法

    公开(公告)号:US20100284005A1

    公开(公告)日:2010-11-11

    申请号:US12676984

    申请日:2008-09-03

    Abstract: An optical or infrared spectrometer is suitable for on-line measurements for industrial, agricultural, field, commercial and other applications. Optical spectrometers are very useful for various analytical measurements. On-line operation is needed for obtaining real-time information, which is useful e.g. for process automation and quality control needs. The invention is based on optical design optimized for measuring moving samples at a distance and includes a light guide for signal homogenization, a linear variable filter for defining multiple measurement wavelengths as well as a linear detector array for detecting optical signals relating to the different wavelengths. There is an element for cooling and stabilizing the operating temperature of both the linear detector array and the linear variable filter, while the spectrometer is operating in variable environmental conditions. Thanks to the optical signal chain designed to maximize the radiance at the detector, the proposed spectrometer can provide high signal-to-noise ratio and high speed.

    Abstract translation: 光学或红外光谱仪适用于工业,农业,现场,商业和其他应用的在线测量。 光谱仪对于各种分析测量非常有用。 需要在线操作来获得实时信息,这是有用的。 用于过程自动化和质量控制需求。 本发明基于优化的光学设计,用于在一定距离测量移动样品,并且包括用于信号均匀化的光导,用于定义多个测量波长的线性可变滤波器以及用于检测与不同波长相关的光信号的线性检测器阵列。 在光谱仪工作在可变环境条件下,有一个用于冷却和稳定线性检测器阵列和线性可变滤波器的工作温度的元件。 由于设计了最大化检测器辐射度的光信号链,所提出的光谱仪可以提供高信噪比和高速度。

    Detecting different spectral components of an optical signal by means of an optical shutter
    178.
    发明授权
    Detecting different spectral components of an optical signal by means of an optical shutter 有权
    通过光学快门检测光信号的不同光谱分量

    公开(公告)号:US07570350B2

    公开(公告)日:2009-08-04

    申请号:US11396866

    申请日:2006-04-03

    Inventor: Bernd Nebendahl

    Abstract: Detecting different spectral components of a response signal received from a device under test -DUT- in response to a stimulus signal, with a first splitter receiving the response signal and wavelength depending splitting from response signal a first partial signal and a second partial signal, a second splitter receiving the second partial signal and wavelength depending splitting there from a third partial signal, an optical detector, for receiving the first partial signal and the third partial signal and determining a corresponding optical power, and an optical shutter arranged to be moved to either let through to or block from the optical detector one of: the first partial signal and the third partial signal.

    Abstract translation: 响应于刺激信号,检测从待测器件-DUT-接收的响应信号的不同频谱分量,其中第一分离器接收响应信号和波长依赖于从响应信号分离第一部分信号和第二部分信号, 第二分路器接收来自第三部分信号的第二部分信号和波长依赖性分离,光学检测器,用于接收第一部分信号和第三部分信号并确定相应的光功率;以及光学快门,被布置成移动到 让光检测器通过或阻挡第一部分信号和第三部分信号之一。

    METHOD AND APPARATUS FOR MEASURING THE OPTICAL ABSORPTION OF SAMPLES
    180.
    发明申请
    METHOD AND APPARATUS FOR MEASURING THE OPTICAL ABSORPTION OF SAMPLES 有权
    用于测量样品的光学吸收的方法和装置

    公开(公告)号:US20090168064A1

    公开(公告)日:2009-07-02

    申请号:US12295845

    申请日:2007-04-10

    Abstract: In a method and apparatus for measuring the optical absorption of samples having a light source (1), a photoelectric converter (8), a measurement beam path extending between the light source (1) and the converter (8), in which path the sample to be examined is arranged, a reference beam path extending between the light source (1) and the converter (8), in which path a reference sample is arranged, and a motor-driven chopper disc (10), the chopper disc (10) is configured with a first number of first openings (15) unblocking only the measurement beam path and a second number of second openings (16) unblocking only the path for the reference beam. A lock-in amplifier (21) and a device (17) for synchronising the lock-in amplifier (21) with the chopper disc (10) is connected to the converter (8) and an evaluation circuit (26) establishes the quotient of the transmitted intensity of the reference beam path detected by the converter (8) and the transmitted intensity of the measurement beam path detected by the converter (8) as a measurement for the concentration of the sample in such a way that the decrease in the intensity of the beam by absorption leads to an increase in sensitivity.

    Abstract translation: 在用于测量具有光源(1)的样品的光吸收的方法和装置中,光电转换器(8),在光源(1)和转换器(8)之间延伸的测量光束路径,其中路径 布置要检查的样本,在光源(1)和转换器(8)之间延伸的参考光束路径,其中布置参考样本的路径,以及电动驱动的斩波盘(10),斩波盘 10)配置有仅解除测量光束路径的第一数量的第一开口(15)和仅解除参考光束的路径的第二数量的第二开口(16)。 锁定放大器(21)和用于使锁定放大器(21)与斩波盘(10)同步的装置(17)连接到转换器(8),并且评估电路(26)建立 由转换器(8)检测的参考光束路径的透射强度和由转换器(8)检测的测量光束路径的透射强度作为样品浓度的测量,使得强度的降低 通过吸收导致光束的增加。

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