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    • 3. 发明授权
    • Electromagnetic field measurement apparatus
    • 电磁场测量装置
    • US08654331B2
    • 2014-02-18
    • US12865908
    • 2009-02-04
    • Mizuki IwanamiTsuneo TsukagoshiRisato OhhiraMasafumi NakadaTomonori Yamada
    • Mizuki IwanamiTsuneo TsukagoshiRisato OhhiraMasafumi NakadaTomonori Yamada
    • G01J4/00
    • G01R29/0885
    • There is provided an electromagnetic field measurement apparatus capable of achieving correct and timely circuit operation detection in an area where electronic devices are mounted at high density. An electromagnetic field measurement apparatus includes: a laser light source; a polarized wave controller that linearly polarizes laser light; an optical fiber probe that has an electrooptic material or a magnetooptic material at its leading end and in which the laser light reflected at the leading end is subjected to polarization modulation in accordance with an electric field intensity or a magnetic field intensity; and an analyzer that converts the laser light reflected by the optical fiber probe into intensity modulated light. The laser light source emits time-multiplexed laser light of a plurality of wavelengths different from one another. The electromagnetic field measurement apparatus further includes: an optical circulator that outputs the laser light linearly polarized by the polarized wave controller to a multiplexer/demultiplexer and outputs the laser light input from the multiplexer/demultiplexer to the analyzer; and a multiplexer/demultiplexer that outputs the laser light to different optical fiber probes according to the wavelength of the laser light and outputs the laser light to the optical circulator.
    • 提供一种电磁场测量装置,其能够在电子设备以高密度安装的区域中实现正确和及时的电路操作检测。 电磁场测量装置包括:激光源; 使激光线性偏振的极化波控制器; 在其前端具有电光材料或磁光材料的光纤探针,其中在前端反射的激光根据电场强度或磁场强度进行偏振调制; 以及将由光纤探针反射的激光转换成强度调制光的分析器。 激光光源发射多个彼此不同的波长的多路复用激光。 电磁场测量装置还包括:光学循环器,其将由偏振波控制器线性偏振的激光输出到多路复用器/解复用器,并将从多路复用器/解复用器输入的激光输出到分析器; 以及根据激光的波长将激光输出到不同的光纤探针的多路复用器/解复用器,并将激光输出到光循环器。
    • 5. 发明申请
    • IMPULSE IMMUNITY TEST APPARATUS
    • 刺激免疫测试装置
    • US20100090710A1
    • 2010-04-15
    • US12530168
    • 2008-03-06
    • Tsuneo TsukagoshiTakeshi WatanabeToshiyuki NakaieNobuchika Matsui
    • Tsuneo TsukagoshiTakeshi WatanabeToshiyuki NakaieNobuchika Matsui
    • G01R27/28
    • G01R31/002G01R31/2841G01R31/3004
    • The application methods in the related art cannot apply a sufficient voltage with a rectangular wave having a short rise time to an electronic circuit. Furthermore, electrostatic discharge test can apply a sufficient voltage but can only apply an oscillating waveform.A TLP generator is used as a rectangular wave generator. The sum of an injection resistance and a matching resistance is set so as to match the characteristic impedance of a transmission line for transmitting a rectangular wave to a test target. A capacitor is connected to a return line of the applied rectangular wave. With this configuration, stable application can be achieved. An error observation function of an electronic circuit gradually increases a peak value of the rectangular wave and determines the immunity based on an application voltage to cause an error for the first time.
    • 现有技术中的应用方法不能将具有上升时间短的矩形波的足够电压应用于电子电路。 此外,静电放电试验可以施加足够的电压,但只能施加振荡波形。 TLP发生器用作矩形波发生器。 将注入电阻和匹配电阻的和设定为与用于将矩形波发送到测试对象的传输线的特性阻抗相匹配。 电容器连接到所施加的矩形波的返回线。 利用这种配置,可以实现稳定的应用。 电子电路的误差观察功能逐渐增加矩形波的峰值,并且基于施加电压确定第一次引起误差的抗扰度。
    • 6. 发明授权
    • Probe for electric/magnetic field
    • 探头电/磁场
    • US09182427B2
    • 2015-11-10
    • US13380485
    • 2010-06-23
    • Mizuki IwanamiTsuneo Tsukagoshi
    • Mizuki IwanamiTsuneo Tsukagoshi
    • G01R15/24G01R29/08G01R33/032G02B6/24
    • G01R15/247G01R15/24G01R29/0885G01R33/032G02B6/241
    • In an electric/magnetic field probe using an optical fiber, when a stress is applied to the fiber, the polarization state of the light propagating in the fiber changes, and the signal level of the electric or magnetic field detection becomes unstable. For coping with this problem, for suppressing the curve or waggle of the optical fiber caused by a stress applied to the fiber, an electric/magnetic field sensor unit composed of the fiber and EO/MO material is fixed on a quartz substrate, for example, and the part of the fiber other than the sensor unit is stored in an acrylic tube and fixed. Further, polarization adjustment parts like a polarization controller, an optical analyzer or the like is installed in the housing, so that a stress caused by wind pressure or contact is not applied to the fiber connected to the parts.
    • 在使用光纤的电/磁场探针中,当对光纤施加应力时,在光纤中传播的光的偏振状态发生变化,电场或磁场检测的信号电平变得不稳定。 为了解决这个问题,为了抑制由施加到纤维上的应力引起的光纤的曲线或摇摆,将由光纤和EO / MO材料构成的电/磁场传感器单元固定在石英基板上,例如 并且除了传感器单元之外的纤维的一部分存储在丙烯酸管中并固定。 此外,偏振控制器,光学分析仪等偏振调节部件安装在壳体中,使得由风压或接触引起的应力不对连接到部件的光纤施加。
    • 7. 发明授权
    • Communication medium
    • 通讯媒体
    • US09153866B2
    • 2015-10-06
    • US13884113
    • 2011-11-07
    • Hiroshi FukudaNaoki KobayashiTsuneo Tsukagoshi
    • Hiroshi FukudaNaoki KobayashiTsuneo Tsukagoshi
    • H01Q1/52H04B13/00
    • H01Q1/526H04B13/00
    • A communication medium includes: a first sheet conductor portion; a second sheet conductor portion that is arranged facing the first sheet conductor portion; and a conductor portion that surrounds an end part of the first sheet conductor portion and an end part of the second sheet conductor portion. The second sheet conductor portion includes: a shield part that has no opening part; a communication power feed part that has opening parts; and a matched line part that is provided between the shield part and the communication power feed part, and impedance of which matches with the shield part and the communication power feed part. The conductor portion surrounds the end part of the shield part.
    • 通信介质包括:第一片状导体部分; 布置成面对所述第一片状导体部的第二片状导体部; 以及包围第一片状导体部的端部和第二片状导体部的端部的导体部。 第二片状导体部包括:没有开口部的屏蔽部; 具有开口部的通信供电部; 以及设置在屏蔽部和通信供电部之间的匹配线部,其阻抗与屏蔽部和通信供电部相匹配。 导体部分围绕屏蔽部分的端部。
    • 8. 发明授权
    • Impulse immunity test apparatus
    • 脉冲免疫测试仪
    • US08410791B2
    • 2013-04-02
    • US12530168
    • 2008-03-06
    • Tsuneo TsukagoshiTakeshi WatanabeToshiyuki NakaieNobuchika Matsui
    • Tsuneo TsukagoshiTakeshi WatanabeToshiyuki NakaieNobuchika Matsui
    • G01R27/28G01R27/26
    • G01R31/002G01R31/2841G01R31/3004
    • The application methods in the related art cannot apply a sufficient voltage with a rectangular wave having a short rise time to an electronic circuit. Furthermore, electrostatic discharge test can apply a sufficient voltage but can only apply an oscillating waveform.A TLP generator is used as a rectangular wave generator. The sum of an injection resistance and a matching resistance is set so as to match the characteristic impedance of a transmission line for transmitting a rectangular wave to a test target. A capacitor is connected to a return line of the applied rectangular wave. With this configuration, stable application can be achieved. An error observation function of an electronic circuit gradually increases a peak value of the rectangular wave and determines the immunity based on an application voltage to cause an error for the first time.
    • 现有技术中的应用方法不能将具有上升时间短的矩形波的足够电压应用于电子电路。 此外,静电放电试验可以施加足够的电压,但只能施加振荡波形。 TLP发生器用作矩形波发生器。 将注入电阻和匹配电阻的和设定为与用于将矩形波发送到测试对象的传输线的特性阻抗相匹配。 电容器连接到所施加的矩形波的返回线。 利用这种配置,可以实现稳定的应用。 电子电路的误差观察功能逐渐增加矩形波的峰值,并且基于施加电压确定第一次引起误差的抗扰度。