公开(公告)号：US09400221B2

公开(公告)日：2016-07-26

申请号：US14382919

申请日：2012-03-05

申请人： Davide Sarchi ,  Luca Palmieri

发明人： Davide Sarchi ,  Luca Palmieri

IPC分类号： G01N3/32 ,  G01L1/24 ,  G01M5/00 ,  G01M11/08 ,  G01L3/12 ,  G01L5/10

CPC分类号： G01L1/242 ,  G01L3/12 ,  G01L5/105 ,  G01M5/0025 ,  G01M5/0041 ,  G01M5/0091 ,  G01M11/086 ,  Y10T29/49004

摘要： A method for monitoring a torsional state of a cable having a central longitudinal axis, includes providing a cable including a torsion sensor longitudinally extending along the cable, the torsion sensor including a single-mode optical fiber arranged substantially along the central longitudinal axis of the cable, and at least three longitudinal structural elements, at least one of the longitudinal structural elements being an electrically conductive core, wherein the torsion sensor is mechanically coupled with at least one of the longitudinal structural elements; measuring a torsional state of the single-mode optical fiber by polarization-sensitive optical reflectometry; and associating the torsional state of the cable along the longitudinal axis with the measured torsional state of the single-mode optical fiber.

摘要翻译： 一种用于监测具有中心纵向轴线的电缆的扭转状态的方法，包括提供包括沿电缆纵向延伸的扭转传感器的电缆，所述扭转传感器包括基本上沿电缆的中心纵向轴线布置的单模光纤 和至少三个纵向结构元件，所述纵向结构元件中的至少一个是导电芯，其中所述扭转传感器与所述纵向结构元件中的至少一个机械联接; 通过偏振光学光学反射测量来测量单模光纤的扭转状态; 并且将沿着纵向轴线的电缆的扭转状态与测量的单模光纤的扭转状态相关联。

公开(公告)号：US20150040681A1

公开(公告)日：2015-02-12

申请号：US14382919

申请日：2012-03-05

申请人： Davide Sarchi ,  Luca Palmieri

发明人： Davide Sarchi ,  Luca Palmieri

IPC分类号： G01L1/24

CPC分类号： G01L1/242 ,  G01L3/12 ,  G01L5/105 ,  G01M5/0025 ,  G01M5/0041 ,  G01M5/0091 ,  G01M11/086 ,  Y10T29/49004

摘要： A method for monitoring a torsional state of a cable having a central longitudinal axis, includes providing a cable including a torsion sensor longitudinally extending along the cable, the torsion sensor including a single-mode optical fiber arranged substantially along the central longitudinal axis of the cable, and at least three longitudinal structural elements, at least one of the longitudinal structural elements being an electrically conductive core, wherein the torsion sensor is mechanically coupled with at least one of the longitudinal structural elements; measuring a torsional state of the single-mode optical fiber by polarisation-sensitive optical reflectometry; and associating the torsional state of the cable along the longitudinal axis with the measured torsional state of the single-mode optical fiber.

摘要翻译： 一种用于监测具有中心纵向轴线的电缆的扭转状态的方法，包括提供包括沿电缆纵向延伸的扭转传感器的电缆，所述扭转传感器包括基本上沿电缆的中心纵向轴线布置的单模光纤 和至少三个纵向结构元件，所述纵向结构元件中的至少一个是导电芯，其中所述扭转传感器与所述纵向结构元件中的至少一个机械联接; 通过偏振光学光学反射测量来测量单模光纤的扭转状态; 并且将沿着纵向轴线的电缆的扭转状态与测量的单模光纤的扭转状态相关联。

公开(公告)号：US09194404B2

公开(公告)日：2015-11-24

申请号：US13522234

申请日：2011-01-11

申请人： Luca Palmieri

发明人： Luca Palmieri

IPC分类号： F15B15/20 ,  F15B7/00

CPC分类号： F15B15/204 ,  F15B7/006

摘要： An oil-hydraulic system for moving a gate, comprises a double-acting oil-hydraulic cylinder (11), which is intended to be kinematically connected to the gate to move it, and an electro-hydraulic pump (12) to feed and actuate the cylinder upon command. A switching valve (13) interconnects the cylinder (11) alternatively with the pump (12) or with a tank (14) of oil-hydraulic fluid. In rest conditions, the valve (13) connects the cylinder (11) to the tank (14), to allow free manual movement of a gate connected to the cylinder, and it is automatically controlled by the pressure variations in the system that are produced by the actuation of the pump (12) to disconnect the cylinder (11) from the tank (14) and connect it to the pump (12).

摘要翻译： 一种用于移动闸门的油压系统，包括一个双作用油压缸（11），其旨在运动地连接到闸门以使其移动;以及电动液压泵（12），用于进给和致动 圆柱体命令。 切换阀（13）将气缸（11）与泵（12）或油压液体的罐（14）交替地连接。 在静止条件下，阀（13）将气缸（11）连接到油箱（14），以允许连接到气缸的门的自由手动移动，并且其被系统中产生的压力变化自动控制 通过泵（12）的致动将气缸（11）与罐（14）断开并将其连接到泵（12）。

公开(公告)号：US20130213028A1

公开(公告)日：2013-08-22

申请号：US13522234

申请日：2011-01-11

申请人： Luca Palmieri

发明人： Luca Palmieri

IPC分类号： F15B15/20

CPC分类号： F15B15/204 ,  F15B7/006

摘要： An oil-hydraulic system for moving a gate, comprises a double-acting oil-hydraulic cylinder (11), which is intended to be kinematically connected to the gate to move it, and an electro-hydraulic pump (12) to feed and actuate the cylinder upon command. A switching valve (13) interconnects the cylinder (11) alternatively with the pump (12) or with a tank (14) of oil-hydraulic fluid. In rest conditions, the valve (13) connects the cylinder (11) to the tank (14), to allow free manual movement of a gate connected to the cylinder, and it is automatically controlled by the pressure variations in the system that are produced by the actuation of the pump (12) to disconnect the cylinder (11) from the tank (14) and connect it to the pump (12).

摘要翻译： 一种用于移动闸门的油压系统，包括一个双作用油压缸（11），其旨在运动地连接到闸门以使其移动;以及电动液压泵（12），用于进给和致动 圆柱体命令。 切换阀（13）将气缸（11）与泵（12）或油压液体的罐（14）交替地连接。 在静止条件下，阀（13）将气缸（11）连接到油箱（14），以允许连接到气缸的门的自由手动移动，并且其被系统中产生的压力变化自动控制 通过泵（12）的致动将气缸（11）与罐（14）断开并将其连接到泵（12）。

公开(公告)号：US20070132985A1

公开(公告)日：2007-06-14

申请号：US10590114

申请日：2004-02-20

申请人： Luca Palmieri

发明人： Luca Palmieri

IPC分类号： G01N21/00

CPC分类号： G01M11/3181

摘要： A method of determining characteristic spin parameters of a spun optical fiber by performing optical time-domain reflectometry measurements on the fiber, so as to obtain a state of polarization spatial function from a backscattered electromagnetic field, the state of polarization spatial function being defined by a plurality of components; and processing the state of polarization spatial function. The process includes calculating a further spatial function related to the spatial first derivative of at least one of the components of the state of polarization spatial function; identifying a spatial periodicity of the further spatial function; and determining the characteristic spin parameters as a function of the spatial periodicity.

摘要翻译： 一种通过在光纤上执行光时域反射测量来确定旋转光纤的特征自旋参数的方法，以便从后向散射电磁场获得偏振空间函数的状态，偏振空间函数的状态由 多个组件; 并处理极化空间函数的状态。 该过程包括计算与偏振空间函数状态的分量中的至少一个的空间一阶导数相关的另外的空间函数; 识别进一步的空间功能的空间周期; 并且确定特征旋转参数作为空间周期的函数。

公开(公告)号：US06697150B1

公开(公告)日：2004-02-24

申请号：US10129025

申请日：2002-04-29

申请人： Andrea Galtarossa ,  Luca Palmieri ,  Marco Schiano ,  Tiziana Tambosso

发明人： Andrea Galtarossa ,  Luca Palmieri ,  Marco Schiano ,  Tiziana Tambosso

IPC分类号： G01N2100

CPC分类号： H04B10/2569 ,  G01M11/3181

摘要： The process and apparatus to enable measurement of polarization dispersion of a single-mode optical fibre by launching measurement light at one end of the fibre and analyzing polarization of the light reflected by the other end and collected at such launch end. Optical or electronic masking of light reflected by the near end of the fibre is performed during launch.

摘要翻译： 通过在光纤的一端发射测量光并分析由另一端反射并在这种发射端收集的光的偏振，能够测量单模光纤的偏振色散的方法和装置。 在发射过程中进行由光纤近端反射的光的光学或电子掩蔽。

公开(公告)号：US07406234B2

公开(公告)日：2008-07-29

申请号：US10590114

申请日：2004-02-20

申请人： Luca Palmieri

发明人： Luca Palmieri

IPC分类号： G02B6/02 ,  G01N21/00

CPC分类号： G01M11/3181

摘要： A method of determining characteristic spin parameters of a spun optical fiber by performing optical time-domain reflectometry measurements on the fiber, so as to obtain a state of polarization spatial function from a backscattered electromagnetic field, the state of polarization spatial function being defined by a plurality of components; and processing the state of polarization spatial function. The process includes calculating a further spatial function related to the spatial first derivative of at least one of the components of the state of polarization spatial function; identifying a spatial periodicity of the further spatial function; and determining the characteristic spin parameters as a function of the spatial periodicity.

摘要翻译： 一种通过在光纤上执行光时域反射测量来确定旋转光纤的特征自旋参数的方法，以便从后向散射电磁场获得偏振空间函数的状态，偏振空间函数的状态由 多个组件; 并处理极化空间函数的状态。 该过程包括计算与偏振空间函数状态的分量中的至少一个的空间一阶导数相关的另外的空间函数; 识别进一步的空间功能的空间周期; 并且确定特征旋转参数作为空间周期的函数。

公开(公告)号：US07082229B2

公开(公告)日：2006-07-25

申请号：US10469809

申请日：2002-02-28

申请人： Andrea Galtarossa ,  Giuseppe Lorenzetto ,  Luca Palmieri ,  Marco Santagiustina ,  Raoul Fiorone ,  Andrea Corti

发明人： Andrea Galtarossa ,  Giuseppe Lorenzetto ,  Luca Palmieri ,  Marco Santagiustina ,  Raoul Fiorone ,  Andrea Corti

IPC分类号： G02B6/00

CPC分类号： H04B10/2569

摘要： An apparatus for compensation or emulation of polarization mode dispersion (PMD) effects occurring in an optical signal traveling over an optical fiber based link comprises controllable birefringence sections and devices for polarization conversion. Each section comprises birefringence optical members or parts thereof, and each section is followed or preceded by one of the controllable devices for polarization conversion. The birefringence sections are at least three in number, and at least one of these has a propagation delay different from that of the other sections. The apparatus comprises a detection device for PMD output and control of the controllable devices for feedback adjustment.

摘要翻译： 用于补偿或仿真在基于光纤的链路上行进的光信号中发生的偏振模色散（PMD）效应的装置包括可控双折射部分和用于偏振转换的装置。 每个部分包括双折射光学部件或其部分，并且每个部分之后或之前是用于偏振转换的可控制器件之一。 双折射部分数量至少为三个，并且这些中的至少一个具有与其它部分不同的传播延迟。 该装置包括用于PMD输出的检测装置和用于反馈调节的可控装置的控制。

公开(公告)号：US07013085B2

公开(公告)日：2006-03-14

申请号：US10469807

申请日：2002-03-04

申请人： Andrea Galtarossa ,  Raoul Fiorone ,  Luca Palmieri ,  Andrea Corti

发明人： Andrea Galtarossa ,  Raoul Fiorone ,  Luca Palmieri ,  Andrea Corti

IPC分类号： H04B10/18

CPC分类号： H04B10/2569

摘要： A method of detecting polarization mode dispersion (PMD) indicative parameters of an optical fiber link comprising at least one transmission channel in which is transmitted a first wideband optical signal with a bandwidth divided into sub-bands. For each sub-band is produced a second reference optical signal with which to find a third optical signal by superposition. For each of the third signals are calculated first parameters considered indicative of the PMD thereof, and with the first parameters of all the sub-bands are calculated second parameters considered indicative of the PMD of the first wideband signal. The method can be used as part of a PMD compensation method for a transmission system employing the parameters calculated for feedback piloting of a PMD compensator. A detection apparatus comprises a generator for generation of the second reference optical signals, an optical mixer for producing superimposition of the first and second signals, one or more photodetectors for finding the electrical beat signal or the first and second signals, a calculation device for calculating the first parameters, and a processor for processing all the first parameters to find therefrom the second parameters which will then be furthered processed. The detection apparatus can be part of a compensation apparatus comprising the compensator and a calculation stage for calculating the compensation and piloting the compensator. The entirety can be part of an optical fiber communication system.

摘要翻译： 一种检测包括至少一个传输信道的光纤链路的偏振模色散（PMD）指示参数的方法，其中传输具有被划分为子带的带宽的第一宽带光信号。 对于每个子带产生第二参考光信号，通过该第二参考光信号通过叠加来找到第三光信号。 对于每个第三信号是计算的第一参数被考虑指示其PMD，并且所有子带的第一参数被计算出被认为表示第一宽带信号的PMD的第二参数。 该方法可以用作采用为PMD补偿器的反馈引导计算的参数的传动系统的PMD补偿方法的一部分。 检测装置包括用于产生第二参考光信号的发生器，用于产生第一和第二信号的叠加的光学混合器，用于找到电差拍信号或第一和第二信号的一个或多个光电检测器，用于计算 第一参数，以及用于处理所有第一参数以从中发现第二参数的处理器，然后第二参数将被进一步处理。 检测装置可以是包括补偿器的补偿装置的一部分，以及用于计算补偿和引导补偿器的计算阶段。 整体可以是光纤通信系统的一部分。

公开(公告)号：US06920270B2

公开(公告)日：2005-07-19

申请号：US10312913

申请日：2001-06-27

申请人： Andrea Galtarossa ,  Anna Pizzinat ,  Luca Palmieri

发明人： Andrea Galtarossa ,  Anna Pizzinat ,  Luca Palmieri

IPC分类号： C03B37/027 ,  C03B37/03 ,  G02B6/10 ,  G02B6/17 ,  C03B37/02

CPC分类号： G02B6/02285 ,  C03B37/027 ,  C03B37/02745 ,  C03B37/032 ,  C03B2203/19 ,  C03B2203/36 ,  C03B2205/06 ,  G02B6/105

摘要： A method for determining at least one parameter of a periodic spin function α(z) with period p, to be applied to an optical fiber along its length z during a drawing process. At least one parameter is selected so that (I) where ε1 is about 0.05 and y1 is the first of the three components y1(z), y2(z), y3(z) of a periodic function y(z) of period p such that (II) where LB is an expected beat length of said optical fiber and α(z) is the derivative of the spin function α(z) with respect to the length z. The method is effective for substantially reducing the PMD of optical fibers drawn when applying a spin function.

摘要翻译： 一种确定周期性p的周期性自旋函数α（z）的至少一个参数的方法，其在拉伸过程中沿其长度z施加到光纤上。 选择至少一个参数，使得（1）其中ε1 = 0.05和y 1是三个组分y 1中的第一个， （z）的周期函数y（z）的（z），y2（z），y3（z），使得（II）其中L < B 是所述光纤的预期拍子长度，并且α（z）是自旋函数α（z）相对于长度z的导数。 该方法对于大幅减少施加自旋功能时所拉伸的光纤的PMD是有效的。