Waveguide structure
    1.
    发明授权
    Waveguide structure 失效
    波导结构

    公开(公告)号:US07693384B2

    公开(公告)日:2010-04-06

    申请号:US12111884

    申请日:2008-04-29

    CPC classification number: G02B6/12007

    Abstract: A waveguide structure is provided. The waveguide structure includes: a slot channel waveguide including first and second patterns, which are spaced apart from each other to define a slot; a first upper layer covering at least a portion of the slot channel waveguide; and a second upper layer covering the remaining portion of the slot channel waveguide. A thermo-optic coefficient (TOC) of the channel waveguide times a TOC of the second upper layer is a negative number.

    Abstract translation: 提供了一种波导结构。 波导结构包括:缝隙通道波导,包括第一和第二图案,它们彼此间隔开以限定狭槽; 覆盖所述槽道波导的至少一部分的第一上层; 以及覆盖槽道波导的剩余部分的第二上层。 通道波导的热光系数(TOC)乘以第二上层的TOC是负数。

    WAVEGUIDE STRUCTURE AND ARRAYED WAVEGUIDE GRATING STRUCTURE
    2.
    发明申请
    WAVEGUIDE STRUCTURE AND ARRAYED WAVEGUIDE GRATING STRUCTURE 有权
    波导结构和阵列波导光栅结构

    公开(公告)号:US20090252457A1

    公开(公告)日:2009-10-08

    申请号:US12199517

    申请日:2008-08-27

    CPC classification number: G02B6/12011 G02B2006/12119

    Abstract: Provided are a waveguide structure and an arrayed waveguide grating structure. The arrayed waveguide grating structure includes an input star coupler, an output star coupler, and a plurality of arrayed waveguides optically connecting the input star coupler and the output star coupler. Each of the arrayed waveguides includes at least one section having a high confinement factor and at least two sections having a relatively low confinement factor. The sections of the arrayed waveguides having a high confinement factor have the same structure.

    Abstract translation: 提供了一种波导结构和阵列波导光栅结构。 阵列波导光栅结构包括输入星形耦合器,输出星形耦合器以及光学地连接输入星形耦合器和输出星形耦合器的多个阵列波导。 每个阵列波导包括具有高约束因子的至少一个部分和具有相对较低约束因子的至少两个部分。 具有高约束因子的阵列波导的部分具有相同的结构。

    Waveguide structure and arrayed waveguide grating structure
    3.
    发明授权
    Waveguide structure and arrayed waveguide grating structure 有权
    波导结构和阵列波导光栅结构

    公开(公告)号:US07848602B2

    公开(公告)日:2010-12-07

    申请号:US12199517

    申请日:2008-08-27

    CPC classification number: G02B6/12011 G02B2006/12119

    Abstract: Provided are a waveguide structure and an arrayed waveguide grating structure. The arrayed waveguide grating structure includes an input star coupler, an output star coupler, and a plurality of arrayed waveguides optically connecting the input star coupler and the output star coupler. Each of the arrayed waveguides includes at least one section having a high confinement factor and at least two sections having a relatively low confinement factor. The sections of the arrayed waveguides having a high confinement factor have the same structure.

    Abstract translation: 提供了一种波导结构和阵列波导光栅结构。 阵列波导光栅结构包括输入星形耦合器,输出星形耦合器以及光学地连接输入星形耦合器和输出星形耦合器的多个阵列波导。 每个阵列波导包括具有高约束因子的至少一个部分和具有相对较低约束因子的至少两个部分。 具有高约束因子的阵列波导的部分具有相同的结构。

    Method for recognizing step movement sequence of control rod drive mechanism of nuclear reactor
    5.
    发明申请
    Method for recognizing step movement sequence of control rod drive mechanism of nuclear reactor 有权
    识别核反应堆控制棒驱动机构的步进运动顺序的方法

    公开(公告)号:US20050286673A1

    公开(公告)日:2005-12-29

    申请号:US10874235

    申请日:2004-06-24

    Abstract: A method for recognizing the step movement sequence of a control rod drive mechanism of a nuclear reactor, which withdraws and inserts a control rod of a nuclear reactor, includes the steps of: measuring current and voltage flowing through an electromagnetic coil used in the control rod drive mechanism of the nuclear reactor; calculating inductance of the coil by using the measured current and voltage; calculating a distance between a rotor and a stator of the control rod drive mechanism on the basis of the calculated inductance; and recognizing the step movement sequence of the control rod drive mechanism on the basis of the calculated distance. This method ensures good reliability in determining the step movement sequence, allows easy implementation using a digital signal processor, and is hardly affected by external factors such as noise.

    Abstract translation: 用于识别放出并插入核反应堆的控制棒的核反应堆的控制棒驱动机构的步进运动顺序的方法包括以下步骤:测量流过控制棒中使用的电磁线圈的电流和电压 核反应堆的驱动机制; 使用测量的电流和电压计算线圈的电感; 基于计算的电感计算控制棒驱动机构的转子和定子之间的距离; 并基于计算出的距离识别控制棒驱动机构的步进运动顺序。 该方法确保了确定步进运动顺序的良好可靠性,允许使用数字信号处理器轻松实现,并且几乎不受外部因素如噪声的影响。

    Method for recognizing step movement sequence of control rod drive mechanism of nuclear reactor
    8.
    发明授权
    Method for recognizing step movement sequence of control rod drive mechanism of nuclear reactor 有权
    识别核反应堆控制棒驱动机构的步进运动顺序的方法

    公开(公告)号:US07505545B2

    公开(公告)日:2009-03-17

    申请号:US10874235

    申请日:2004-06-24

    Abstract: A method for recognizing the step movement sequence of a control rod drive mechanism of a nuclear reactor, which withdraws and inserts a control rod of a nuclear reactor, includes the steps of: measuring current and voltage flowing through an electromagnetic coil used in the control rod drive mechanism of the nuclear reactor; calculating inductance of the coil by using the measured current and voltage; calculating a distance between a rotor and a stator of the control rod drive mechanism on the basis of the calculated inductance; and recognizing the step movement sequence of the control rod drive mechanism on the basis of the calculated distance. This method ensures good reliability in determining the step movement sequence, allows easy implementation using a digital signal processor, and is hardly affected by external factors such as noise.

    Abstract translation: 用于识别放出并插入核反应堆的控制棒的核反应堆的控制棒驱动机构的步进运动顺序的方法包括以下步骤:测量流过控制棒中使用的电磁线圈的电流和电压 核反应堆的驱动机制; 使用测量的电流和电压计算线圈的电感; 基于计算的电感计算控制棒驱动机构的转子和定子之间的距离; 并基于计算出的距离识别控制棒驱动机构的步进运动顺序。 该方法确保了确定步进运动顺序的良好可靠性,允许使用数字信号处理器轻松实现,并且几乎不受外部因素如噪声的影响。

    Method for detecting a fault of a power module for a control system of a control rod drive mechanism of a nuclear reactor
    9.
    发明申请
    Method for detecting a fault of a power module for a control system of a control rod drive mechanism of a nuclear reactor 审中-公开
    用于检测核反应堆的控制棒驱动机构的控制系统的功率模块的故障的方法

    公开(公告)号:US20060159215A1

    公开(公告)日:2006-07-20

    申请号:US11253572

    申请日:2005-10-20

    CPC classification number: G21C17/00 Y02E30/39

    Abstract: In a method for detecting a fault of a power module for a control system of a control rod drive mechanism of a nuclear reactor, a fault of the power module is separately detected in a “go” mode, a “hold” mode and a “double hold” mode of a control rod. In the “go” mode, fault is detected by comparing voltage ripples of a movable gripper coil, a stationary gripper coil and a lifting coil of the control rod drive mechanism. In the “hold” mode, fault is detected by means of power spectrum analysis at a predetermined frequency using a Discrete Fourier Transform (DFT) for a stationary gripper coil, and by means of a Root Means Square (RMS) calculation of coil voltage for a movable gripper coil. In the “double hold” mode, fault is detected using power spectrum analysis at a predetermined frequency using a DFT for both stationary and movable gripper coils.

    Abstract translation: 在用于检测核反应堆的控制棒驱动机构的控制系统的功率模块的故障的方法中,以“去”模式,“保持”模式和“保持”模式分别检测功率模块的故障, 双重握住“模式的控制杆。 在“去”模式中,通过比较可动夹线圈,固定夹线圈和控制杆驱动机构的提升线圈的电压纹波来检测故障。 在“保持”模式中,通过使用用于固定夹持器线圈的离散傅立叶变换(DFT)的预定频率的功率谱分析来检测故障,并且通过用于线圈电压的根平均方差(RMS)计算线圈电压 可动夹线圈。 在“双重保持”模式中,使用用于固定和可动夹持器线圈的DFT以预定频率使用功率谱分析来检测故障。

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