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    • 5. 发明申请
    • Interferometric method for the measurement of separations between planes with subnanometer precision
    • 用于测量具有亚纳米计精度的平面之间的分离的干涉测量方法
    • US20060098207A1
    • 2006-05-11
    • US11316619
    • 2005-12-16
    • Edmund KochPeter Koch
    • Edmund KochPeter Koch
    • G01B11/02
    • G01B11/0675
    • Method for the interferometric determination of the change to an optical spacing between two planes in a sample at a transition from a first to a second measurement point on the sample, the sample being illuminated with high band width light and the sample is at least partly transmitting for the light and the planes that are partly reflecting, with the steps of the spectral dispersion of the superposition of the light beams reflected at the planes for both measurement points. A determination of the modulation frequencies and phase positions of the spectrograms and the differentiation of these results can be made for providing a conclusion concerning a first value for the optical separation change of the planes from the difference of the modulation frequencies alone and calculation of a second, more precise value for the optical separation change from the first value, while taking account of the phase difference.
    • 用于在从样品上的第一测量点到第二测量点的转变处干涉测定样品中两个平面之间的光学间隔的变化的方法,所述样品被高带宽光照射,并且所述样品至少部分透射 对于部分反射的光和平面,在两个测量点的平面处反射的光束的叠加的频谱色散的步骤。 可以确定光谱图的调制频率和相位位置以及这些结果的区分,以便提供关于单独的调制频率的差异的平面的光学分离变化的第一值的结论,以及第二 ,同时考虑到相位差,光学分离的更精确的值从第一个值变化。
    • 6. 发明授权
    • Optical gas analyzer
    • 光学气体分析仪
    • US5739535A
    • 1998-04-14
    • US731204
    • 1996-10-10
    • Edmund KochPeter DreyerOtto RosinkeGerd PeterWajih Al-Soufi
    • Edmund KochPeter DreyerOtto RosinkeGerd PeterWajih Al-Soufi
    • G01N21/35G01N21/25
    • G01N21/3504
    • An optical gas analyzer for measuring the percentage of components in a gas phase by IR absorption, containing a power source, a measuring path containing the gas sample, a photoelectric receiver with an evaluation circuit arranged downstream of it, which receiver detects the IR radiation from the measuring path, and a plurality of filters, which can be introduced one after another into the beam path at a predetermined filter change frequency f, wherein measured signals belonging to the filters are sent by the receiver due to the radiation extinction in the measuring path, is to be improved such that different components in the gas sample can be detected in a simple manner and at good selectivity. To accomplish this object, the receiver is a pyroelectric detector, the evaluation circuit has elements for the evaluation of the voltage signal of the pyroelectric detector, the filter change frequency f is set at a value in the range of the declining branch of the frequency response of the voltage signal, and the pyroelectric detector is selected to be such that the declining branch of the voltage signal has a decline of -20 dB per decade.
    • 一种光学气体分析仪,用于通过IR吸收测量气相中的组分的百分比,其包含电源,包含气体样品的测量路径,具有布置在其下游的评估电路的光电接收器,该接收器检测来自 测量路径和多个滤波器,其可以以预定的滤波器变化频率f一个接一个地引入到光束路径中,其中属于滤波器的测量信号由于在测量路径中的辐射消光而由接收器发送 ,可以以简单的方式和良好的选择性检测气体样品中的不同成分。 为了实现该目的,接收机是热电检测器,评估电路具有用于评价热电检测器的电压信号的元件,滤波器变化频率f被设定在频率响应的下降支路的范围内的值 的电压信号,并且热电检测器被选择为使得电压信号的衰减分支具有每十年降低-20dB。
    • 9. 发明授权
    • System for measuring the concentration of a gaseous component by
detecting positions of mode jumps in a laser diode
    • 通过检测激光二极管中的模式脉冲的位置来测量气体组分的浓度的系统
    • US5202560A
    • 1993-04-13
    • US904676
    • 1992-06-26
    • Edmund KochJens-Uwe HagenahChristoph MaurerUlrich HeimWilfried DiekmannJohann Otten
    • Edmund KochJens-Uwe HagenahChristoph MaurerUlrich HeimWilfried DiekmannJohann Otten
    • H01S5/0683H01S5/0687
    • H01S5/0687H01S5/06837
    • The invention is directed to a method of operating a laser diode in a measuring system for spectroscopically measuring the concentration of a gaseous component in a gas sample. This method is improved in that the mode jumps of the laser diode are easily recognized when adjusting the temperature-current operating point of the laser diode. An optical filter is placed in the beam path for adjusting the temperature-current operating point of the laser diode and, by changing the temperature T and the operating current I of the laser diode while simultaneously receiving the output signal supplied by an evaluation unit, the spectral positions of the mode jumps of the laser diode are determined which are included in the absorption lines of the gas sample. Thereafter, the temperature-current operating point is adjusted so that the distance of this operating point to the positions of the mode jumps is not less than a fixed spacing. The invention is also directed to a measuring system for spectroscopically measuring the concentration of a gaseous component in a gas sample.
    • 本发明涉及一种在测量系统中操作激光二极管的方法,用于光谱测量气体样品中气态组分的浓度。 改进了这种方法,因为当调节激光二极管的温度 - 电流工作点时,可以容易地识别出激光二极管的模式跳变。 光滤波器被放置在光束路径中,用于调节激光二极管的温度 - 电流工作点,并且通过改变激光二极管的温度T和工作电流I同时接收由评估单元提供的输出信号, 确定激光二极管的模式跳跃的光谱位置,其包括在气体样品的吸收线中。 此后,调整温度 - 电流工作点,使得该工作点与模式跳跃位置的距离不小于固定间距。 本发明还涉及用于光谱测量气体样品中气态组分浓度的测量系统。
    • 10. 发明授权
    • Method and device for reading deep barcodes by way of optical interference
    • 通过光学干涉读取深条形码的方法和装置
    • US07484665B2
    • 2009-02-03
    • US10551308
    • 2004-03-13
    • Peter KochGereon HuettmannEdmund KochEva Lankenau
    • Peter KochGereon HuettmannEdmund KochEva Lankenau
    • G06K7/10
    • G06K7/10712G06K19/06046G06K2019/06234
    • This invention relates to a method for reading, while using optical interference, a barcode that extends into the depth of a substrate. The barcode is represented by an area with marks in the substrate that is partially transparent to electromagnetic radiation. The inventive method comprises the steps of irradiating the substrate with short coherence length light from a broad-band light source, dividing the light up into reference light and measuring light, returning the reference light and the measuring light back-scattered or reflected in the marked area to an analytical unit, determining the reflectance or the reflectivity of the substrate for all layer depths in the marked area from the interference of the reference light and the measuring light and interpreting the result as a barcode.
    • 本发明涉及一种在使用光学干涉的情况下读取延伸到基板深度的条形码的方法。 条形码由在基板中具有对电磁辐射部分透明的标记的区域表示。 本发明的方法包括以下步骤:从宽带光源照射具有短相干长度光的基板,将光分成参考光和测量光,返回参考光和被散射或反射在标记的光 区域到分析单元,从参考光和测量光的干涉中确定标记区域中所有层深度的衬底的反射率或反射率,并将结果解释为条形码。