公开(公告)号：US08233755B2

公开(公告)日：2012-07-31

申请号：US13309087

申请日：2011-12-01

Applicant: Cary R. Murphy ,  David E. Vokey ,  Mark K. Bridges

Inventor： Cary R. Murphy ,  David E. Vokey ,  Mark K. Bridges

IPC: G02B6/00 ,  G02B9/02 ,  G01J4/00 ,  G01N21/17

CPC classification number: H04B10/85 ,  G02B6/276 ,  H04B10/071 ,  H04B10/532 ,  H04L63/1416

Abstract: A telecommunications optical fiber is secured against intrusion by detecting manipulation of the optical fiber prior to an intrusion event. This can be used in a non-locating system where the detection end is opposite the transmit end or in a locating system which uses Fresnel reflections and Rayleigh backscattering to the transmit end to detect and then locate the motion. The Rayleigh backscattering time sliced data can be stored in a register until an intrusion event is detected. The detection is carried out by a polarization detection system which includes an optical splitter which is manufactured in simplified form for economic construction. This uses a non-calibrated splitter and less than all four of the Stokes parameters. It can use a polarimeter type function limited to linear and circular polarization or two linear polarizers at 90 degrees.

Abstract translation: 电信光纤通过在入侵事件之前检测光纤的操作而被抵抗入侵。 这可以用在检测端与发射端相对的定位系统中，或者在使用菲涅尔反射和瑞利后向散射到发射端的定位系统中来检测并定位运动。 瑞利后向散射时间分片数据可以存储在寄存器中，直到检测到入侵事件。 该检测是通过偏振检测系统进行的，该偏振检测系统包括以经济构造简化形式制造的分光器。 这使用未校准的分离器和小于所有四个斯托克斯参数。 它可以使用限于线性和圆偏振的偏振计类型功能，或者使用90度的两个线性偏振器。

公开(公告)号：US07634387B2

公开(公告)日：2009-12-15

申请号：US11461902

申请日：2006-08-02

Applicant: Cary R. Murphy ,  Daniel M. Goertzen ,  Mark K. Bridges ,  David E. Vokey

Inventor： Cary R. Murphy ,  Daniel M. Goertzen ,  Mark K. Bridges ,  David E. Vokey

IPC: G06F11/30

CPC classification number: H04B10/00

Abstract: A signal which varies over time is monitored to determine an alarm condition, where the sample stream of digital values from an A/D converter is divided in to equal length pieces and a Fourier Transform (FT) algorithm is used to transform each piece of the stream into a three dimensional dataset including frequency domain amplitude, frequency and time. A Frequency Envelope is calculated by taking the maxima over the time dimension for a period of time, leaving a two dimensional frequency domain amplitude vs frequency dataset which is compared with new data arriving to determine the alarm condition for each element of the Frequency Envelope either by applying a constant delta additively or multiplicatively or by using a “leaky bucket” algorithm.

Abstract translation: 监视随时间变化的信号以确定警报状况，其中来自A / D转换器的数字值的采样流被划分成相等的长度，并且使用傅里叶变换（FT）算法来变换每个 流入包括频域幅度，频率和时间的三维数据集。 通过在时间维度上取最大值来计算频率包络，留下二维频域振幅对频率数据集，与新数据比较，以确定频率包络的每个元素的报警条件，由 应用一个常量增量加乘法或通过使用“泄漏桶”算法。

公开(公告)号：US07602196B2

公开(公告)日：2009-10-13

申请号：US12020935

申请日：2008-01-28

Applicant: David E. Vokey

Inventor： David E. Vokey

IPC: G01R27/08 ,  G01N27/00

CPC classification number: E04D13/006 ,  E04D5/00 ,  G01M3/16

Abstract: A defect in a roof membrane is detected by applying a DC voltage between the roof deck and a perimeter conductor and using a detection probe pair to provide a signal indicative of the differences in voltage detected by the pair of probes so as to allow the operator to locate the defect by moving the probes to different locations. The probes are mounted on a rigid common frame such that the probe pair has a fixed separation and the frame includes a handle portion which allows ready manipulation of the frame carrying the probes by the operator. The receiver provides an audible signal emitter to the operator and includes a calibration circuit arranged to automatically maintain, despite changes in voltage applied between the roof deck and the peripheral conductor, a “0” set calibration point so as to indicate at the calibration point when zero difference in voltage is detected.

Abstract translation: 通过在车顶甲板和周边导体之间施加直流电压并使用检测探针对来提供指示由该对探针检测到的电压差异的信号来检测屋顶膜中的缺陷，从而允许操作者 通过将探头移动到不同的位置来定位缺陷。 探针安装在刚性公共框架上，使得探针对具有固定的间隔，并且框架包括手柄部分，其允许操作者容纳对承载探针的框架的操纵。 接收器向操作者提供可听见的信号发射器，并且包括校准电路，该校准电路被布置成即使在屋顶平台和外围导体之间施加的电压发生变化，自动维持“0”设置的校准点，以便在校准点处指示 检测到零电压差。

公开(公告)号：US20080204259A1

公开(公告)日：2008-08-28

申请号：US11679673

申请日：2007-02-27

Applicant: David E. Vokey ,  Gamal Mustapha ,  Jason Teetaert

Inventor： David E. Vokey ,  Gamal Mustapha ,  Jason Teetaert

IPC: G08B21/00 ,  G01R27/08

CPC classification number: G01M3/16 ,  G01M3/165 ,  G01N27/048

Abstract: A moisture detection sensor is used in a building structure to detect moisture penetration. The sensor is a flat adhesive tape of a substrate of dielectric, hydrophobic material. Three or four elongate, parallel, conductors are secured to the top surface and a protective layer of non-hygroscopic, water pervious material is secured over two of the conductors so that they are exposed to surface moisture. One or two of the conductors are covered by an insulating layer to prevent moisture access. Pairs of moisture probes along the length of the tape penetrate the insulating layer, the respective conductors and the substrate and to extend into a building component to which the substrate has been adhered. A diode guide arrangement allows a monitoring unit to monitor the exposed conductors for surface moisture and the penetrated conductors for moisture in the component by reversing polarity of the voltage across the conductors.

Abstract translation: 在建筑结构中使用水分检测传感器来检测水分渗透。 传感器是电介质疏水材料基片的平面胶带。 三个或四个细长平行的导体固定到顶部表面，并且非吸湿性，透水材料的保护层被固定在两个导体上，使得它们暴露于表面水分。 一个或两个导体被绝缘层覆盖，以防止湿气进入。 沿着胶带长度的一对湿气探头穿透绝缘层，相应的导体和基底，并延伸到已经粘附衬底的建筑构件中。 二极管引导装置允许监测单元通过反转导体两端的电压的极性来监测暴露的导体的表面水分和穿透的导体中的湿气。

公开(公告)号：US5708364A

公开(公告)日：1998-01-13

申请号：US510239

申请日：1995-08-02

Applicant: David E. Vokey ,  Kenneth N. Sontag ,  Gilles Aminot

Inventor： David E. Vokey ,  Kenneth N. Sontag ,  Gilles Aminot

IPC: G01R31/02 ,  H04M3/28 ,  H04B3/46

CPC classification number: H04M3/28 ,  G01R31/021

Abstract: A novel method and apparatus are used for monitoring cables for wear and damage. The system is particularly applicable to a cable system with multiple branch terminations. The cables have detection conductors, for example the metal cable jackets or other detection conductors extending the length of the conductors. These are connected electrically at the splice points in the system. At the end of each branch and at the end of the main cable, the detection conductors are each connected to a novel termination circuit. In the normal monitoring mode, the termination circuit appears as an open circuit. A DC voltage is normally applied to the detection conductors. Any current is a result of current leakage at a resistive fault along the detection conductors. The termination circuits are activated by altering the DC voltage, e.g. by reversing the polarity and increasing the magnitude of the voltage. This causes the termination circuit to perform a series of functional tests. These include a loop test which places a short across the end of the detection conductor for a timed period. The resulting high level loop current is used to calculate the total detection conductor resistance. A second test transmits a coded signal simulating a triggered splice sensor unit. The signal is detected and decoded to verify proper operation of end to end coded signaling after completing a test cycle, the termination circuit turns off and the next termination to be tested is addressed.

Abstract translation: 一种新颖的方法和装置用于监测电缆的磨损和损坏。 该系统特别适用于具有多个分支终端的电缆系统。 电缆具有检测导体，例如金属电缆护套或延伸导体长度的其他检测导体。 这些在系统中的接合点处电连接。 在每个分支的末端和主电缆的末端，检测导体各自连接到新的终端电路。 在正常监控模式下，终端电路显示为开路。 直流电压通常被施加到检测导体。 任何电流都是沿着检测导体的电阻故障下的电流泄漏的结果。 通过改变直流电压来激活终端电路，例如， 通过反转极性并增加电压的大小。 这导致终端电路执行一系列功能测试。 这些包括一个循环测试，其在检测导体的末端放置短时间段。 所得到的高电平回路电流用于计算总检测导体电阻。 第二个测试发送模拟触发的接头传感器单元的编码信号。 在完成测试周期之后，对信号进行检测和解码以验证端对端编码信号的正确操作，终端电路关闭，下一个要测试的终端被寻址。

公开(公告)号：US4947469A

公开(公告)日：1990-08-07

申请号：US293288

申请日：1989-01-04

Applicant: David E. Vokey ,  Kenneth N. Sontag ,  John C. Chamberlain ,  Ronald L. Lavallee

Inventor： David E. Vokey ,  Kenneth N. Sontag ,  John C. Chamberlain ,  Ronald L. Lavallee

IPC: G01R31/08

CPC classification number: G01R31/088

Abstract: A resistive fault in an electrical cable is located by applying a DC voltage to one end of the faulted cable conductor. The steady state DC voltage and current are measured at the end of the conductor where the voltage is applied. Simultaneously, the DC voltage is measured at the other end of the cable. The voltage is then reversed in polarity and the measurements repeated. Several repetitions of this procedure at each end of the conductor yields sufficient information to compute the location of the fault with reasonable accuracy. The procedure is carried out using two computer-based units, one at each end of the cable, with the two units communicating over the conductor under test.

公开(公告)号：US4647720A

公开(公告)日：1987-03-03

申请号：US676177

申请日：1985-02-14

Applicant: David E. Vokey

Inventor： David E. Vokey

IPC: H01B13/26 ,  H01B7/18

CPC classification number: H01B13/2686 ,  Y10T156/101 ,  Y10T156/1018 ,  Y10T29/49117 ,  Y10T29/532

Abstract: A cable having a composite shield and armour sheath design is disclosed. The cable comprises a cable core, a sheath of corrugated laminated tape surrounding the cable core and formed by bonding a plastic coated aluminum tape to a wider steel tape with one edge of the aluminum tape registering with one edge of the steel tape, and an outer jacket of polyethylene overlying the sheath of corrugated laminated tape. The uncovered portion of the steel tape overlaps the registering edges of the laminated tape, to form a uniform unwelded overlap.

Abstract translation: 公开了具有复合屏蔽和护甲护套设计的电缆。 电缆包括电缆芯，围绕电缆芯的波纹层叠带的护套，并通过将塑料涂覆的铝带粘合到较宽的钢带上而形成，其中铝带的一个边缘与钢带的一个边缘配准，外部 覆盖波纹层压胶带护套的聚乙烯护套。 钢带的未覆盖部分与层压带的配准边缘重叠，以形成均匀的未焊接的重叠。

公开(公告)号：US07706641B2

公开(公告)日：2010-04-27

申请号：US11461917

申请日：2006-08-02

Applicant: Cary R. Murphy ,  Mark K. Bridges ,  Joseph Giovanni ,  David E. Vokey ,  Daniel M. Goertzen

Inventor： Cary R. Murphy ,  Mark K. Bridges ,  Joseph Giovanni ,  David E. Vokey ,  Daniel M. Goertzen

IPC: G02B6/00

CPC classification number: H04B10/85

Abstract: Some or all of the optical fibers of a single-mode or multi-mode cable are monitored for intrusion by transmitting through the fibers a signal which can be analyzed for changes in its characteristics which are indicative of movement as a prelude to an intrusion event. To avoid independent monitors of all of the fibers, in some cases the same light signal is looped through a plurality of the fibers in series by passive jumpers. Switches can be used to disconnect out those fibers which are compromised. As an alternative a plurality of separate monitoring signals can be provided each associated with its own sensor where unique combinations of the signals are transmitted through separate fibers allowing a higher number of fibers to be monitored than the number of signals.

Abstract translation: 监测单模或多模光缆的部分或全部光纤通过光纤传输一个信号，该信号可以分析其特性的变化，这些变化表示作为入侵事件的前奏的移动。 为了避免所有光纤的独立监视器，在某些情况下，相同的光信号通过被动跳线串联的多根光纤环绕。 开关可用于断开那些被损坏的纤维。 作为替代，可以提供多个单独的监视信号，每个独立的监视信号与其自己的传感器相关联，其中信号的独特组合通过分开的光纤传输，允许监视比信号数量更多的光纤。

公开(公告)号：US07688215B2

公开(公告)日：2010-03-30

申请号：US11679673

申请日：2007-02-27

Applicant: David E. Vokey ,  Gamal Mustapha ,  Jason Teetaert

Inventor： David E. Vokey ,  Gamal Mustapha ,  Jason Teetaert

IPC: G08B21/00 ,  G01N21/00

CPC classification number: G01M3/16 ,  G01M3/165 ,  G01N27/048

Abstract: A moisture detection sensor is used in a building structure to detect moisture penetration. The sensor is a flat adhesive tape of a substrate of dielectric, hydrophobic material. Three or four elongate, parallel, conductors are secured to the top surface and a protective layer of non-hygroscopic, water pervious material is secured over two of the conductors so that they are exposed to surface moisture. One or two of the conductors are covered by an insulating layer to prevent moisture access. Pairs of moisture probes along the length of the tape penetrate the insulating layer, the respective conductors and the substrate and to extend into a building component to which the substrate has been adhered. A diode guide arrangement allows a monitoring unit to monitor the exposed conductors for surface moisture and the penetrated conductors for moisture in the component by reversing polarity of the voltage across the conductors.

Abstract translation: 在建筑结构中使用水分检测传感器来检测水分渗透。 传感器是电介质疏水材料基片的平面胶带。 三个或四个细长平行的导体固定到顶部表面，并且非吸湿性，透水材料的保护层被固定在两个导体上，使得它们暴露于表面水分。 一个或两个导体被绝缘层覆盖，以防止湿气进入。 沿着胶带长度的一对湿气探头穿透绝缘层，相应的导体和基底，并延伸到已经粘附衬底的建筑构件中。 二极管引导装置允许监测单元通过反转导体两端的电压的极性来监测暴露的导体的表面水分和穿透的导体中的湿气。

公开(公告)号：US20090199506A1

公开(公告)日：2009-08-13

申请号：US12030277

申请日：2008-02-13

Applicant: David E. Vokey

Inventor： David E. Vokey

IPC: E04G23/03

CPC classification number: E04D13/006 ,  G01M3/16

Abstract: A defect in a horizontal or vertical seam at the edge of a roof membrane is detected by applying a DC voltage between the roof deck a probe in the form of a flexible wetted sponge and wiping the sponge probe over the seams. The current to the probe is detected and indicated to the operator so that the operator may determine a maximum current at the defect. The receiver provides an audible signal emitter to the operator and includes a calibration circuit arranged to automatically maintain, despite changes in voltage applied between the roof deck and the peripheral conductor, a “0” set calibration point so as to indicate at the calibration point when zero difference in voltage is detected. Conductors can be applied to the membrane to define an area to be tested within the conductors.

Abstract translation: 通过在顶板之间施加直流电压来检测屋顶膜边缘处的水平或垂直接缝的缺陷，探针以柔性润湿海绵的形式并在接缝上擦拭海绵探针。 检测到探头的电流并向操作者指示，以便操作者可以确定缺陷处的最大电流。 接收器向操作者提供可听见的信号发射器，并且包括校准电路，该校准电路被布置成即使在屋顶平台和外围导体之间施加的电压发生变化，自动维持“0”设置的校准点，以便在校准点处指示 检测到零电压差。 可以将导体应用于膜以在导体内限定要测试的区域。