COAXIAL CABLE BRAGG GRATING SENSOR
    1.
    发明申请
    COAXIAL CABLE BRAGG GRATING SENSOR 有权
    同轴电缆布拉格光栅传感器

    公开(公告)号:US20120272741A1

    公开(公告)日:2012-11-01

    申请号:US13437770

    申请日:2012-04-02

    IPC分类号: G01B7/16 B23P21/00

    摘要: A coaxial cable sensor device with periodic impedance discontinuities along the length of its cable. The cable comprises an inner conductor, insulating material disposed around the length of the inner conductor, and an outer conductor disposed around the insulating material. The periodic impedance discontinuities are created by physical deformations or material alterations to at least one of the inner conductor, the outer conductor, and the insulating material. The sensor device may be used to measure temperature, pressure, strain, and acoustic waves in building structures, and is well suited for down-hole or underwater applications.

    摘要翻译: 同轴电缆传感器设备,其电缆长度为周期性阻抗不连续。 电缆包括内部导体,围绕内部导体的长度设置的绝缘材料和围绕绝缘材料设置的外部导体。 通过对内部导体,外部导体和绝缘材料中的至少一个的物理变形或材料改变产生周期性阻抗不连续性。 传感器装置可用于测量建筑结构中的温度,压力,应变和声波,并且非常适用于井下或水下应用。

    Coaxial cable Bragg grating sensor
    2.
    发明授权
    Coaxial cable Bragg grating sensor 有权
    同轴电缆布拉格光栅传感器

    公开(公告)号:US09046342B2

    公开(公告)日:2015-06-02

    申请号:US13437770

    申请日:2012-04-02

    摘要: A coaxial cable sensor device with periodic impedance discontinuities along the length of its cable. The cable comprises an inner conductor, insulating material disposed around the length of the inner conductor, and an outer conductor disposed around the insulating material. The periodic impedance discontinuities are created by physical deformations or material alterations to at least one of the inner conductor, the outer conductor, and the insulating material. The sensor device may be used to measure temperature, pressure, strain, and acoustic waves in building structures, and is well suited for down-hole or underwater applications.

    摘要翻译: 同轴电缆传感器设备,其电缆长度为周期性阻抗不连续。 电缆包括内部导体,围绕内部导体的长度设置的绝缘材料和围绕绝缘材料设置的外部导体。 通过对内部导体,外部导体和绝缘材料中的至少一个的物理变形或材料改变产生周期性阻抗不连续性。 传感器装置可用于测量建筑结构中的温度,压力,应变和声波,并且非常适用于井下或水下应用。

    COMMUNICATION DEVICE, METHOD FOR DISPLAYING FUNCTION OF COMMUNICATION DEVICE, AND A COMPUTER READABLE MEDIUM EMBODYING A DISPLAYING FUNCTION PROGRAM FOR COMMUNICATION DEVICE
    3.
    发明申请
    COMMUNICATION DEVICE, METHOD FOR DISPLAYING FUNCTION OF COMMUNICATION DEVICE, AND A COMPUTER READABLE MEDIUM EMBODYING A DISPLAYING FUNCTION PROGRAM FOR COMMUNICATION DEVICE 审中-公开
    通信装置,用于显示通信装置的功能的方法,以及计算机可读介质,用于通信装置的显示功能程序

    公开(公告)号:US20110009170A1

    公开(公告)日:2011-01-13

    申请号:US12922050

    申请日:2009-03-24

    申请人: Hai Xiao

    发明人: Hai Xiao

    IPC分类号: H04M1/02

    摘要: In order to realize a communication device with improved operability by a simple structure and reduced cost, the communication device (1) of the present invention includes a first housing (2), a second housing (3) overlapped with the first housing (2) as to expose at least one of predetermined areas with an operation unit (11) on the surface, a slide operation detection means (6) which detects which of the predetermined areas are exposed, a function setting means (7) which receives the detection result and sets the functions of the operation unit (11) according to the exposed areas, and a function display means (8) which displays the set function on the operation unit (11).

    摘要翻译: 为了通过简单的结构实现具有改善的可操作性的通信设备并降低成本,本发明的通信设备(1)包括与第一壳体(2)重叠的第一壳体(2),第二壳体(3) 为了在表面上露出具有操作单元(11)的至少一个预定区域,检测哪个预定区域被暴露的滑动操作检测装置(6),接收检测结果的功能设定装置(7) 并根据曝光区域设置操作单元(11)的功能,以及在操作单元(11)上显示设定功能的功能显示单元(8)。

    Self-calibrating optical fiber pressure, strain and temperature sensors
    4.
    发明授权
    Self-calibrating optical fiber pressure, strain and temperature sensors 有权
    自校准光纤压力,应变和温度传感器

    公开(公告)号:US6069686A

    公开(公告)日:2000-05-30

    申请号:US309660

    申请日:1999-05-11

    摘要: Broadband energy incident on a transducer having partially or fully reflective surfaces separated by a gap which is greater than the coherence length of the broadband energy but smaller than one-half a coherence length of a band of energy within said broadband energy causes a portion of the spectral content of the broadband energy corresponding to a coherence length greater than twice the gap length to exhibit interference effects while the average power of the broadband energy remains unaffected. Splitting energy reflected from the transducer into two beams which are filtered at preferably similar center frequencies but with different pass bands yields beams which are radically different in sensitivity to changes in gap length. Analyzing the beams to derive a ratio of powers (since source intensity and fiber attenuation in a common fiber are thus self-cancelling) allows high accuracy and high resolution absolute measurement of temperature, pressure or strain. Effects of any of these physical parameters which are not of interest in a measurement can be fully compensated or made arbitrarily insignificant in a simple transducer structure of extremely small size. Use of broadband energy permits measurement over greater lengths of optical fiber.

    摘要翻译: 入射在具有部分或全部反射面的换能器上的宽带能量,所述反射表面被间隙分开,所述间隙大于宽带能量的相干长度但小于所述宽带能量内的能带的相干长度的一半会导致部分 宽带能量的频谱内容对应于大于间隙长度的两倍的相干长度,以显示干扰效应,而宽带能量的平均功率保持不受影响。 将从换能器反射的能量分裂为在优选地类似的中心频率但具有不同通过频带的滤波器的两个波束产生与间隙长度变化的灵敏度完全不同的波束。 分析光束以获得功率比(因为普通光纤中的源强度和光纤衰减因此是自消除的)允许高精度和高分辨率的绝对测量温度,压力或应变。 在测量中不感兴趣的这些物理参数中的任何一个的影响可以在极小尺寸的简单的换能器结构中被完全补偿或任意地不显着。 宽带能量的使用允许在更长的光纤上进行测量。