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    • 2. 发明授权
    • Grating spectrometer
    • 光栅光谱仪
    • US4563090A
    • 1986-01-07
    • US502991
    • 1983-06-10
    • Wolfgang Witte
    • Wolfgang Witte
    • G01J3/30G01J3/28G01J3/18
    • G01J3/28
    • In a grating spectrometer a signal spectrum is measured repeatedly while inserting different filters. The number of the filters and measurements correspond to the number of the occurring grating orders not suppressed. The signal spectra and the transmission characteristics of the filters are stored. A system of equations is achieved, from which a computer calculates the signal partial spectra associated with the individual grating orders. A total spectrum is composed from these signal partial spectra. Separation of the higher grating orders need not be effected optically, for example by cut-off filters.
    • 在光栅光谱仪中,在插入不同的滤光片时重复测量信号光谱。 滤波器和测量的数量对应于未被抑制的出现的光栅顺序的数量。 存储滤波器的信号频谱和传输特性。 实现了一种方程组,计算机计算与各个光栅顺序相关联的信号分光谱。 总谱由这些信号部分谱组成。 较高光栅级数的分离不需要光学地进行,例如通过截止滤光器。
    • 4. 发明授权
    • Monochromator
    • 单色器
    • US4575243A
    • 1986-03-11
    • US502990
    • 1983-06-10
    • Wolfgang Witte
    • Wolfgang Witte
    • G01J3/12G01J3/18
    • G01J3/18G01J3/0208G01J3/0229
    • A monochromator comprises a first and a second concave grating. An entrance slit is imaged by the concave grating in the plane as a spectrum. A disc comprises a spiral slot. A section of the slot forms an intermediate slit periodically sweeping transversely across the spectrum. A concave mirror images the fanning point of the concave grating. Thereby the fanned beams are recombined to a single beam. An exit slit is located in an image plane in which an image of the entrance slit is generated. The spectrum can be scanned quickly and cyclically without the gratings having to be rotated. There is also the effect of a double monochromator. Another embodiment comprises two concave mirrors to generate the image.
    • 单色器包括第一和第二凹光栅。 入射狭缝通过平面内的凹形光栅作为光谱成像。 盘包括螺旋槽。 槽的一部分形成横向横穿光谱周期扫描的中间狭缝。 凹面镜成像凹面光栅的扇形点。 因此,扇形光束被重新组合成单​​个光束。 出口狭缝位于其中产生入口狭缝的图像的图像平面中。 可以快速和周期地扫描光谱,而不必旋转光栅。 还有一个双色仪的效果。 另一个实施例包括两个凹面镜以产生图像。
    • 9. 发明授权
    • Apparatus for determining the concentration of the components of a sample
    • 用于确定样品组分浓度的装置
    • US4267572A
    • 1981-05-12
    • US26710
    • 1979-04-03
    • Wolfgang Witte
    • Wolfgang Witte
    • G01J3/28G06F17/00G06F15/20
    • G01J3/28
    • Apparatus for determining the concentration of the various components of a sample, which includes a spectrophotometer for receiving a sample to be analyzed and performing extinctions of the sample at a plurality of preselected wavelengths to form a sample spectrum; memory devices for storing a standard spectra of each of the individual components; circuitry for weighting the sample spectrum at different wavelengths in conformity with each of the standard spectra and providing estimated values of the concentrations of the components from the sample spectra thus weighted; circuitry for reconstructing the sample spectrum as a linear combination of the estimated values of the concentrations and the standard spectra; a subtractor for forming a difference spectrum from the sample spectrum and the reconstructed sample spectrum; circuitry for weighting the difference spectrum at different wavelengths in conformity with each of the standard spectra and providing corrective values of the concentrations of the components from the difference spectrum thus weighted, and means for reconstructing the difference spectrum as a linear combination from the corrective values of the concentrations and the standard spectra; a subtractor for forming a second difference spectrum from the first difference spectrum and the reconstructed difference spectrum; updating means for correcting the estimated values by the corrective values, and a readout device for reading out the corrected values of the concentrations of the components.
    • 用于确定样品的各种组分的浓度的装置,其包括用于接收待分析样品的分光光度计,并以多个预选波长执行样品的消光以形成样品光谱; 用于存储每个单独部件的标准光谱的存储器件; 用于根据每个标准光谱对不同波长的样品光谱进行加权的电路,并从如此加权的样品光谱提供组分浓度的估计值; 用于将样品光谱重建为浓度和标准光谱的估计值的线性组合的电路; 用于从样本谱和重建的样本谱形成差分谱的减法器; 电路,用于根据每个标准光谱对不同波长的差分光谱进行加权,并从如此加权的差分光谱中提供分量的浓度的校正值,以及用于从差分光谱重建差分谱作为线性组合的装置, 浓度和标准光谱; 用于从所述第一差分谱和所述重建的差谱形成第二差分谱的减法器; 用于通过校正值校正估计值的更新装置,以及读出组件浓度校正值的读出装置。