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    DETERMINING PARAMETERS OF THE DIELECTRIC FUNCTION OF A SUBSTANCE IN AQUEOUS SOLUTION BY SELF-REFERENCED REFLECTION THZ SPECTROSCOPY
    1.
    发明申请
    DETERMINING PARAMETERS OF THE DIELECTRIC FUNCTION OF A SUBSTANCE IN AQUEOUS SOLUTION BY SELF-REFERENCED REFLECTION THZ SPECTROSCOPY 审中-公开
    通过自反射反射THZ光谱测定水溶液中物质的介电函数的参数

    公开(公告)号：WO2008003328A1

    公开(公告)日：2008-01-10

    申请号：PCT/DK2007/050083

    申请日：2007-07-05

    申请人： DANMARKS TEKNISKE UNIVERSITET ,  JEPSEN, Peter Uhd

    发明人： JEPSEN, Peter Uhd

    IPC分类号： G01N21/35

    CPC分类号： G01N21/3586 ,  G01N21/3577

    摘要： Method and apparatus for determining dielectric function of liquid solutions and thereby concentrations of substances in aqueous solution or the volatile/non-volatile nature of the liquid by self-referenced reflection THz spectroscopy. Having the aqueous solution in any container with a window allows irradiating coherent THz radiation with frequencies within the range 0.05 - 2 THz on the front of the window, and recording both a reference signal reflected from the front of the window and a sample signal reflected from the back of the window in contact with the aqueous solution. From these signals, the complex index of refraction, (I) or the complex reflection coefficient (II), can be calculated. The calculated components are compared with previously determined components from samples with known concentrations, whereby a concentration of the substance in the mixture can be estimated. The invention is particularly useful for determining alcohol (ethanol) content in aqueous solution containing other substances and particles.

    摘要翻译： 用于通过自参照的反射太赫兹光谱测定液体溶液的介电功能以及水溶液中的物质浓度或液体的挥发/非挥发性质的方法和装置。 将水溶液放置在具有窗口的任何容器中，允许在窗口前方照射频率在0.05-2Hz之间的相干THz辐射，并记录从窗前方反射的参考信号和从 窗口的背面与水溶液接触。 从这些信号可以计算出复数折射率（I）或复数反射系数（II）。 将计算的组分与具有已知浓度的样品的先前确定的组分进行比较，由此可以估计混合物中物质的浓度。 本发明特别可用于测定含有其它物质和颗粒的水溶液中的醇（乙醇）含量。

    WIRELESS DATA SIGNAL TRANSMISSION SYSTEM
    5.
    发明申请
    WIRELESS DATA SIGNAL TRANSMISSION SYSTEM 审中-公开
    无线数据信号传输系统

    公开(公告)号：WO2014146667A1

    公开(公告)日：2014-09-25

    申请号：PCT/DK2014/050058

    申请日：2014-03-13

    申请人： DANMARKS TEKNISKE UNIVERSITET

    发明人： OXENLØWE, Leif Katsuo ,  GALILI, Michael ,  JEPSEN, Peter Uhd

    IPC分类号： H04B10/11 ,  H04J14/08

    CPC分类号： H04J14/08 ,  H04B2210/006

    摘要： The present invention relates to a method for providing a radio frequency signal for transmission, a system for providing a radio frequency signal for transmission and a method for wireless data transmission between a transmitter and a receiver.

    摘要翻译： 本发明涉及一种用于提供用于传输的射频信号的方法，一种用于提供用于传输的射频信号的系统和用于在发射机和接收机之间进行无线数据传输的方法。

    THZ CROSS-CORRELATION DEVICE
    6.
    发明申请
    THZ CROSS-CORRELATION DEVICE 审中-公开

    公开(公告)号：WO2023025709A1

    公开(公告)日：2023-03-02

    申请号：PCT/EP2022/073292

    申请日：2022-08-22

    申请人： DANMARKS TEKNISKE UNIVERSITET

    发明人： LANGE, Simon, Lehnskov ,  GARCIA, Oscar, Garcia ,  BÆK, Thorsten ,  JEPSEN, Peter Uhd

    IPC分类号： G01N21/3586

    摘要： A terahertz (THz) cross-correlation device for material characterization of a sample comprising an optical source for outputting a continuous-wave (CW) optical signal; THz antennas providing a THz transmitter and a THz receiver optically coupled to the optical source, and an optical delay setup configured to adjust a synchronization of the THz receiver to the THz transmitter by the CW optical signal. The optical source is configured to provide a CW optical signal having an at least substantially continuous broadband spectrum and the optical paths for the CW signal are provided by optical waveguides such as optical fibres or integrated waveguides. The optical delay setup comprises a double-pass polarization-conserving fibre stretcher comprising a circulator, a fibre stretcher, and a Faraday mirror; and/or a variable solid state optical delay (SSOD).