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    • 87. 发明专利
    • Dispersion interferometer, and method of measuring physical quantity of measuring object
    • 分散干扰仪和测量物理量测量对象的方法
    • JP2010107470A
    • 2010-05-13
    • JP2008282085
    • 2008-10-31
    • National Institutes Of Natural Sciences大学共同利用機関法人自然科学研究機構
    • AKIYAMA TAKESHIKAWABATA KAZUOOKAJIMA SHIGEKINAKAYAMA KAZUYA
    • G01N21/45G01B9/02G01B11/06G01J9/02
    • PROBLEM TO BE SOLVED: To provide a dispersion interferometer usable for actual time control, and capable of removing an influence of a high-frequency noise, reducing a measurement error caused by signal intensity change, and heightening accuracy, by extracting a phase from a signal intensity ratio of a fundamental wave and a double harmonic which are Fourier components of a modulated signal.
      SOLUTION: A nonlinear crystal element 10 of this dispersion interferometer changes a part of laser light (fundamental wave W1) into a double harmonic W2. A photoelastic element 12 generates phase modulation in the fundamental wave W1 as much as a modulated angle frequency ω
      m portion. A nonlinear crystal element 14 changes the fundamental wave W1 transmitted through plasma 30 into the double harmonic W2. A wavelength selection filter 16 allows selectively transmission of the double harmonic W2. The interferometer determines an intensity ratio between a fundamental wave component of the modulated angle frequency ω
      m and a double harmonic component in an interference signal, and calculates a line average electron density which is a physical quantity of the plasma 30 based on the intensity ratio and a phase variation.
      COPYRIGHT: (C)2010,JPO&INPIT
    • 要解决的问题:为了提供可用于实际时间控制的分散干涉仪,并且能够通过提取相位来提取相位,从而消除高频噪声的影响,减少由信号强度变化引起的测量误差和提高精度 根据作为调制信号的傅立叶分量的基波和双倍谐波的信号强度比。 解决方案:该分散干涉仪的非线性晶体元件10将一部分激光(基波W1)变换成双倍谐波W2。 光弹元件12在基波W1中产生多达调制角频率ω的部分的相位调制。 非线性晶体元件14将通过等离子体30传输的基波W1改变为双倍谐波W2。 波长选择滤波器16允许选择性地传输双倍谐波W2。 干涉仪确定调制角频率ω m 的基波分量与干扰信号中的双谐波分量之间的强度比,并计算作为等离子体的物理量的线平均电子密度 30,基于强度比和相位变化。 版权所有(C)2010,JPO&INPIT
    • 88. 发明专利
    • Antenna array
    • 天线阵列
    • JP2010062994A
    • 2010-03-18
    • JP2008228479
    • 2008-09-05
    • National Institutes Of Natural Sciences大学共同利用機関法人自然科学研究機構
    • NAGAYAMA YOSHIO
    • H01Q13/02H01Q21/08
    • H01Q1/247H01Q21/064
    • PROBLEM TO BE SOLVED: To provide an antenna array capable of using a discrete active element suitable for mass production in which the space for the discrete active element can be secured when integrally assembling a dielectric substrate to mount thereon a circuit including the active element to a waveguide and micro fabrication, that is a semiconductor integrated circuit manufacturing technique, is not required for the circuit to be provided on the dielectric substrate. SOLUTION: A one-dimensional antenna array includes a pair of frames 20A, 20B, each frame including a plate 40 and a frame 50 comprising an opening 51. The frames 20A, 20B are superimposed with each other and grooves 42 are opposed to each other, thereby forming a plurality of waveguides and horn formation recesses 44 are opposed to each other, thereby forming a horn. The frames 50 are superimposed with each other. A dielectric substrate 30 is held between the plate 40 and the frame 50. A plurality of microwave receiving circuits on the dielectric substrate 30 are electromagnetically connected with waveguides. COPYRIGHT: (C)2010,JPO&INPIT
    • 要解决的问题:提供一种天线阵列,其能够使用适于批量生产的离散有源元件,其中当将电介质基板整体组装在其上以在其上安装有包括有源元件的电路时,可以确保用于分立有源元件的空间 元件到波导和微制造,即半导体集成电路制造技术,不需要在电介质基板上提供电路。 解决方案:一维天线阵列包括一对框架20A,20B,每个框架包括板40和包括开口51的框架50.框架20A,20B彼此重叠并且槽42相对 从而形成多个波导和喇叭形成凹部44彼此相对,从而形成喇叭。 框架50彼此重叠。 电介质基板30保持在板40和框架50之间。电介质基板30上的多个微波接收电路与波导电磁连接。 版权所有(C)2010,JPO&INPIT