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    Terahertz transceivers and methods for emission and detection of terahertz pulses using such transceivers
    1.
    发明授权
    Terahertz transceivers and methods for emission and detection of terahertz pulses using such transceivers 有权
    太赫兹收发器和使用这种收发器发射和检测太赫兹脉冲的方法

    公开(公告)号：US06844552B2

    公开(公告)日：2005-01-18

    申请号：US09826458

    申请日：2001-04-05

    申请人： Xi-Cheng Zhang ,  Masahiko Tani ,  Zhiping Jiang ,  Qin Chen

    发明人： Xi-Cheng Zhang ,  Masahiko Tani ,  Zhiping Jiang ,  Qin Chen

    IPC分类号： G01N21/17 ,  G01J11/00 ,  G01N21/35 ,  G01J5/02

    CPC分类号： G01N21/3581 ,  G01J11/00

    摘要： A system for emitting and detecting terahertz frequency electromagnetic pulses. The system comprises a single transceiver device, which may be an electro-optic crystal or photoconductive antenna, for both emitting and detecting the pulses. A related method comprises using a single transceiver device to both emit and detect electromagnetic terahertz frequency pulses. The transceiver device is excited by a pump pulse to emit a terahertz output pulse, which is modulated with a chopper. An object reflects the terahertz pulse and the reflected pulse is detected in the transceiver using a probe pulse. A lock-in amplifier set to the same frequency of the chopper is used to reduce noise in the signal detected by the transceiver. An image of the object may be created using the intensity or the timing of the peak amplitude of the terahertz pulses reflected from the object.

    摘要翻译： 用于发射和检测太赫兹频率电磁脉冲的系统。 该系统包括单个收发器装置，其可以是电光晶体或光电导天线，用于发射和检测脉冲。 相关方法包括使用单个收发器装置来发射和检测电磁太赫兹频率脉冲。 收发器设备被泵浦脉冲激发以发射用斩波器调制的太赫兹输出脉冲。 一个对象反映了太赫兹脉冲，并且使用探针脉冲在收发器中检测到反射的脉冲。 设置为与斩波器相同频率的锁定放大器用于降低由收发器检测到的信号中的噪声。 可以使用从对象反射的太赫兹脉冲的峰值振幅的强度或定时来创建对象的图像。

    Terahertz imaging with dynamic aperture
    2.
    发明授权
    Terahertz imaging with dynamic aperture 有权
    太赫兹成像与动态光圈

    公开(公告)号：US06734974B2

    公开(公告)日：2004-05-11

    申请号：US10056866

    申请日：2002-01-25

    申请人： Zhiping Jiang ,  Qin Chen ,  Xie George Xu ,  Xi-Cheng Zhang

    发明人： Zhiping Jiang ,  Qin Chen ,  Xie George Xu ,  Xi-Cheng Zhang

    IPC分类号： G01N2100

    CPC分类号： G01N21/3581 ,  G02F1/3534 ,  G02F2203/13

    摘要： A method of improving spatial resolution of a pump-probe terahertz (THz) imaging system for producing an image of an object. The method provides a chopped optical gating beam focused on a semiconductive layer that is either part of the object or a discrete layer placed over the object. The gating beam is focused on a gating pulse focal spot having a diameter effective to cause measurable modulation in transmission of a THz beam through the semiconductive layer when the gating pulse is on as compared to when the gating pulse is off, creating alternating modulated THz beams for detection and processing. Systems for performing the method in transmission and reflection modes are also described.

    摘要翻译： 一种提高泵浦太赫兹（THz）成像系统的空间分辨率的方法，用于产生物体的图像。 该方法提供了聚焦在作为物体的一部分或放置在物体上的离散层的半导体层的切割的光学门控光束。 选通光束聚焦在门控脉冲焦点上，该脉冲焦点有效地在与选通脉冲关闭时相比门控脉冲打开时在THz光束透过半导体层的传输中产生可测量的调制，产生交替调制的THz光束 用于检测和处理。 还描述了用于在传输和反射模式中执行该方法的系统。

    Integrated focusing and reflecting structure in an optical assembly
    4.
    发明授权
    Integrated focusing and reflecting structure in an optical assembly 有权
    光学组件中的集成聚焦和反射结构

    公开(公告)号：US07682090B2

    公开(公告)日：2010-03-23

    申请号：US11305455

    申请日：2005-12-16

    申请人： Qin Chen ,  John Hsieh

    发明人： Qin Chen ,  John Hsieh

    IPC分类号： G02B6/42

    CPC分类号： G02B6/4246 ,  G02B6/4206 ,  G02B6/4214

    摘要： An integrated reflecting and focusing structure for use in optical transmitters and receivers to redirect optical signals when an optoelectronic device of the transmitter or receiver is positioned in an off-center relationship with respect to an intended light path is disclosed. The integrated reflecting and focusing structure simplifies construction while reducing complexity of the device. In one embodiment, an optical subassembly is disclosed and includes a housing and an optical fiber that is coupled to the housing. An optoelectronic component, such as a laser diode, is positioned in the housing and is configured to produce a light beam. The subassembly further includes an integrated focusing and reflecting prism that serves as a means for simultaneously redirecting and focusing the light beam while in transit between the laser diode and the optical fiber. The focusing feature combined with redirection of the light beam obviates the need for a separate lens assembly.

    摘要翻译： 公开了一种用于光发射机和接收机的集成反射和聚焦结构，用于在发射机或接收机的光电子器件相对于预定光路定位偏心关系时重定向光信号。 集成的反射和聚焦结构简化了构造，同时降低了设备的复杂性。 在一个实施例中，公开了一种光学子组件，并且包括壳体和耦合到壳体的光纤。 诸如激光二极管的光电子部件被定位在壳体中并且被配置为产生光束。 子组件还包括集成的聚焦和反射棱镜，其用作在激光二极管和光纤之间传输的同时重新定向和聚焦光束的装置。 聚焦特征结合光束的重定向消除了对单独的透镜组件的需要。

    Integrated focusing and reflecting structure in an optical assembly
    5.
    发明申请
    Integrated focusing and reflecting structure in an optical assembly 有权
    光学组件中的集成聚焦和反射结构

    公开(公告)号：US20070140625A1

    公开(公告)日：2007-06-21

    申请号：US11305455

    申请日：2005-12-16

    申请人： Qin Chen ,  John Hsieh

    发明人： Qin Chen ,  John Hsieh

    IPC分类号： G02B6/36

    CPC分类号： G02B6/4246 ,  G02B6/4206 ,  G02B6/4214

    摘要： An integrated reflecting and focusing structure for use in optical transmitters and receivers to redirect optical signals when an optoelectronic device of the transmitter or receiver is positioned in an off-center relationship with respect to an intended light path is disclosed. The integrated reflecting and focusing structure simplifies construction while reducing complexity of the device. In one embodiment, an optical subassembly is disclosed and includes a housing and an optical fiber that is coupled to the housing. An optoelectronic component, such as a laser diode, is positioned in the housing and is configured to produce a light beam. The subassembly further includes an integrated focusing and reflecting prism that serves as a means for simultaneously redirecting and focusing the light beam while in transit between the laser diode and the optical fiber. The focusing feature combined with redirection of the light beam obviates the need for a separate lens assembly.

    摘要翻译： 公开了一种用于光发射机和接收机的集成反射和聚焦结构，用于在发射机或接收机的光电子器件相对于预定光路定位偏心关系时重定向光信号。 集成的反射和聚焦结构简化了构造，同时降低了设备的复杂性。 在一个实施例中，公开了一种光学子组件，并且包括壳体和耦合到壳体的光纤。 诸如激光二极管的光电子部件被定位在壳体中并且被配置为产生光束。 子组件还包括集成的聚焦和反射棱镜，其用作在激光二极管和光纤之间传输的同时重新定向和聚焦光束的装置。 聚焦特征结合光束的重定向消除了对单独的透镜组件的需要。

    Film capacitor
    7.
    发明授权
    Film capacitor 有权
    薄膜电容器

    公开(公告)号：US09390857B2

    公开(公告)日：2016-07-12

    申请号：US12241136

    申请日：2008-09-30

    申请人： Daniel Qi Tan ,  Patricia Chapman Irwin ,  Yang Cao ,  Qin Chen

    发明人： Daniel Qi Tan ,  Patricia Chapman Irwin ,  Yang Cao ,  Qin Chen

    IPC分类号： H01G4/06 ,  H01G4/20

    CPC分类号： H01G4/206 ,  H01G4/06 ,  H01G4/20

    摘要： A capacitor comprises a substrate layer, a first electrode layer disposed on the substrate layer, and a first dielectric layer disposed on the electrode layer. The dielectric layer comprises inorganic ferroelectric or antiferroelectric particles, and a polymeric material having an elongation less than or equal to about 5 percent.

    摘要翻译： 电容器包括衬底层，设置在衬底层上的第一电极层和设置在电极层上的第一电介质层。 介电层包括无机铁电或反铁电颗粒，以及具有小于或等于约5％的伸长率的聚合材料。

    AMORPHOUS POLYCARBONATE FILMS FOR CAPACITORS, METHODS OF MANUFACTURE, AND ARTICLES MANUFACTURED THEREFROM
    8.
    发明申请
    AMORPHOUS POLYCARBONATE FILMS FOR CAPACITORS, METHODS OF MANUFACTURE, AND ARTICLES MANUFACTURED THEREFROM 审中-公开
    用于电容器的非晶聚碳酸酯膜，制造方法及其制造的制品

    公开(公告)号：US20120287556A1

    公开(公告)日：2012-11-15

    申请号：US13469918

    申请日：2012-05-11

    申请人： Norberto Silvi ,  Qin Chen ,  Gary Stephen Balch ,  James Alan Mahood

    发明人： Norberto Silvi ,  Qin Chen ,  Gary Stephen Balch ,  James Alan Mahood

    IPC分类号： B32B5/00 ,  H01G4/32

    CPC分类号： H01B3/426 ,  C08J5/18 ,  C08J2369/00 ,  H01G4/008 ,  H01G4/18 ,  H01G4/32 ,  Y10T428/24355

    摘要： A uniaxially-stretched, extruded film comprising a polycarbonate, wherein the extruded film has at least one wrinkle-free region having a first surface and a second surface, the at least one extruded wrinkle-free region comprising: an extruded thickness of more than 0 and less than 7 micrometer, and a variation of the thickness of the film of +/−10% of the thickness of the film, and a surface roughness average that is less than +/−3% of the average thickness of the film as measured by optional profilometery; and further wherein the film has a dielectric constant at 1 kHz and room temperature of at least 2.7; a dissipation factor at 1 kHz and room temperature of 1% or less; and a breakdown strength of at least 300 Volt/micrometer.

    摘要翻译： 一种包含聚碳酸酯的单轴拉伸挤出薄膜，其中所述挤出薄膜具有至少一个具有第一表面和第二表面的无皱纹区域，所述至少一个挤出的无皱纹区域包括：挤出厚度大于0 并且小于7微米，膜的厚度的变化为膜的厚度的+/- 10％，并且表面粗糙度平均值小于膜的平均厚度的+/- 3％，作为 通过可选轮廓测量法测量; 并且其中所述膜具有1kHz的介电常数和至少2.7的室温; 1kHz时的耗散因数和1％以下的室温; 击穿强度至少为300伏特/微米。

    SYSTEM AND METHOD FOR MONITORING AND CONTROLLING PHYSICAL STRUCTURES
    9.
    发明申请
    SYSTEM AND METHOD FOR MONITORING AND CONTROLLING PHYSICAL STRUCTURES 审中-公开
    用于监测和控制物理结构的系统和方法

    公开(公告)号：US20120045330A1

    公开(公告)日：2012-02-23

    申请号：US13193663

    申请日：2011-07-29

    申请人： Juntao Wu ,  Danian Zheng ,  Ping Liu ,  Boon Kwee Lee ,  David James Monk ,  Qin Chen ,  Frederick Gorum Graham, III ,  William Thomas Spratt

    发明人： Juntao Wu ,  Danian Zheng ,  Ping Liu ,  Boon Kwee Lee ,  David James Monk ,  Qin Chen ,  Frederick Gorum Graham, III ,  William Thomas Spratt

    IPC分类号： F03D7/04 ,  G06K9/00

    CPC分类号： F03D7/042 ,  F05B2260/80 ,  F05B2270/80 ,  F05B2270/804 ,  G01S17/88 ,  G01S17/89 ,  G06T7/001 ,  G06T2207/10028 ,  G06T2207/30164 ,  Y02E10/723

    摘要： A system for controlling a wind turbine is disclosed. A system includes a light source and a beam scanner to scan the light pulses over the wind turbine. The system further receives backscattered light pulses and subsequently, provides a signal corresponding to the light pulses. The system adjusts a threshold of the signal based on a normalized value of a detected peak value of the signal. The system associates a time of flight with each of the received backscattered light pulse. The system generates an image of the wind turbine based on the time of flight associated with the light pulses and subsequently, compares the generated image with at least one known image of the wind turbine. The system generates a health profile of the wind turbine based on the comparison and subsequently, change one or more parameters of the wind turbine based on the health profile.

    摘要翻译： 公开了一种用于控制风力涡轮机的系统。 系统包括光源和光束扫描器以扫描风力涡轮机上的光脉冲。 该系统还接收反向散射光脉冲，随后提供对应于光脉冲的信号。 该系统基于检测到的信号的峰值的归一化值来调整信号的阈值。 该系统将飞行时间与接收的反向散射光脉冲中的每一个相关联。 系统基于与光脉冲相关的飞行时间生成风力涡轮机的图像，并且随后将生成的图像与风力涡轮机的至少一个已知图像进行比较。 该系统基于比较生成风力涡轮机的运行状况，随后根据健康状况改变风力涡轮机的一个或多个参数。