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1. 发明专利

JPH10177054A FAULTY POSITION DETECTING SYSTEM FOR OVERHEAD TRANSMISSION LINE 失效
公开(公告)号：JPH10177054A
公开(公告)日：1998-06-30
申请号：JP33725196
申请日：1996-12-17
申请人： CHUBU ELECTRIC POWER , NICHU GIKEN KOGYO KK , HITACHI CABLE
发明人： MURAMATSU MASAAKI , MORISHITA TAKAYASU , OTANI YASUYUKI , OTA TAIJI , NODA TSUGIO , TAKAMIZAWA TOMONORI , ENDO SHIGEHIRO , YAMAMOTO SATORU
IPC分类号： G01R31/08
摘要： PROBLEM TO BE SOLVED: To provide a faulty position detecting system for overhead transmission line that can be heated to a fixed temperature made as high as possible and has a simple constitution and a long detecting distance. SOLUTION: A heater 4 is actuated by the output of a fault detector 3. The heater 4 is constituted of a heating element 41 and a heat storing body 42 and the body 42 is arranged between the heating element 41 and an overhead ground wire 45 and, at the same time, a mixed solution prepared by mixing a plurality of kinds of solutions with each other so that the boiling point of the mixed solution so set at a high temp, set exceeding the heat-resisting temperature of an optical fiber 44, is contained in the heat storing body 42. A faulty position detecting device 5 only measures the intensity distribution of the anti- Stokes' light or Stokes' light of Raman scattering light and detects a faulty position from the variation of the intensity distribution near the place to which the heater 4 is installed.

2. 发明专利

JP2011125086A Closure for cable with connector 审中-公开
标题翻译：带连接器的电缆的闭合
公开(公告)号：JP2011125086A
公开(公告)日：2011-06-23
申请号：JP2009278680
申请日：2009-12-08
申请人： Hitachi Cable Ltd , 日立電線株式会社
发明人： KUROSAWA YOSHINORI , ENDO SHIGEHIRO
IPC分类号： H02G15/113 , H01R4/70
摘要： PROBLEM TO BE SOLVED: To provide a closure for a cable with connector, which is capable of mechanically protecting connection portions or branching portions of cables each having the connector attached to a terminal, and preventing a connection failure due to concentration of a tensile strength to the connection portion of the connector even if the tensile strength is applied to the cable.
SOLUTION: The closure 1 for the cable with connector has a closure casing 2 for housing a portion for electrically connecting the cable 4 having the connector 8 to the terminal. The closure 1 is equipped with a support frame 6 having a cable fixing tool 7 for fixing the outer periphery of the cable and a receptacle 9 to be electrically connected to the connector in the inside of the closure casing.
COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：提供一种具有连接器的电缆的封闭件，其能够机械地保护连接部分或分支部分，每个连接部分或分支部分具有连接到终端的连接器，并且防止由于集中的连接故障即使对电缆施加拉伸强度，连接器的连接部分也具有拉伸强度。解决方案：具有连接器的电缆的封闭件1具有用于容纳用于将具有连接器8的电缆4电连接到端子的部分的封闭壳体2。封闭件1配备有支撑框架6，支撑框架6具有用于固定电缆的外周的电缆固定工具7和在封闭壳体的内部电连接到连接器的插座9。版权所有（C）2011，JPO＆INPIT

3. 发明专利

JPH09329415A OBSTACLE POSITION SENSING SYSTEM 失效
公开(公告)号：JPH09329415A
公开(公告)日：1997-12-22
申请号：JP14940596
申请日：1996-06-11
申请人： NIPPON TETSUDO KENSETSU KODAN , HITACHI CABLE
发明人： OKUYA TAMIO , ENDO SHIGEHIRO
IPC分类号： G01B11/00 , G01J1/02 , G01V8/16 , G01V9/00
摘要： PROBLEM TO BE SOLVED: To provide an obstacle position sensing system which can sense obstacles in a plurality of places with a high accuracy while the sensing resolution is heightened easily. SOLUTION: An optical fiber 3 is laid alongside a long stretching object to be inspected, and on this fiber 3 sensors 4 are laid to sense obstacle for the object, a physical change generated when any of the sensors 4 senses obstacle is fed to the optical fiber 3. A measuring instrument to measure the physical amount distribution along the optical fiber is connected with one end of the optical fiber 3, and the position of the obstacle is detected by the obtained distribution. The optical fiber 3 is laid in loop form in going to/from the object to be inspected so that it is possible to sense the position of obstacle from any of the ends of fiber 3.

4. 发明专利

JPH05312000A 失效
公开(公告)号：JPH05312000A
公开(公告)日：1993-11-22
申请号：JP11916392
申请日：1992-05-12
申请人： HITACHI CABLE
发明人： ENDO SHIGEHIRO
IPC分类号： E21F17/18 , G01K11/12
摘要： PURPOSE:To make it possible to prevent a catching accident without damaging measuring ability of an optical fiber sensor by housing the optical fiber sensor in a channel provided along the ceiling or a wall of a tunnel without coming into contact with the internal wall of the channel. CONSTITUTION:A channel 1 is provided along the ceiling 14 or a wall 15 of a tunnel 13, and an optical fiber sensor 11 is housed in the channel 1 without coming into conttact with the internal wall of the channel 1 and is constructed. The distribution of a physical amount such as temperature, etc., in the tunnel 13 is measured by the optical fiber sensor 11. In addition, the channel 1 can be formed of a gurad member 15 provided along the ceiling 14 or the wall 15. The radiation factor of the channel 1 is lower than that of the optical fiber sensor 11 and, at the same time, a sectional shape of the channel 1 is a parabola, the optical fiber sensor 11 is located at a focus of the parabola, and it is desirable that the sensor 11 is sensitive to temperature rise.

5. 发明专利

JPH0484719A METHOD FOR DETECTING LINEAR DISTRIBUTION DATA 失效
公开(公告)号：JPH0484719A
公开(公告)日：1992-03-18
申请号：JP19791690
申请日：1990-07-27
申请人： TOKYO ELECTRIC POWER CO , HITACHI CABLE
发明人： OZAWA YASUO , ENDO SHIGEHIRO , ANDO YORIO
IPC分类号： G01K11/00 , G01J5/08 , G01J5/10 , G01K11/12 , G01M11/00
摘要： PURPOSE:To make it possible to perform highly accurate linear distribution detection by a plurality of wave detections within an allowable error by correcting a distance component, a time component and a sampling number so that the values become approimately equal to those values at the signal generating positions having a reference wavelength. CONSTITUTION:Up to the case wherein the difference DELTAx(j) between the positions of j(th) Ia and Ib is DELTAx(j) =DELTALa/2, Ia(j) and Ib(j+1) are used. At this time, two S(j) corresponding to (j) is obtained twice. Only one is adopted or the average value of both is adopted in correspondence with the detecting purpose. Thereafter, the obtaining of S(j+1) is repeated based on the combination of Ia(j+1) and Ib(j+2). When the DELTAx of the combination becomes DELTALa/2 or more again, the data in use are shifted by one. In general, when the processing is added in the similar way for every distance of about 2.j.DELTALa/2, the difference between the positions of Ia and Ib which are used for obtaining S is not related to the length of an optical fiber and can be contained within the approximate + or -DELTALa/2.

6. 发明专利

JPH03225711A INSULATOR FOR MEASURING AMOUNT OF FOULING 失效
公开(公告)号：JPH03225711A
公开(公告)日：1991-10-04
申请号：JP13403390
申请日：1990-05-25
申请人： HITACHI CABLE
发明人： MIYATA YASUHIRO , TSUTSUI TERUAKI , HASHIBA KEIICHI , ENDO SHIGEHIRO , ANDO YORIO
IPC分类号： H01B17/00 , G01R31/12
摘要： PURPOSE:To put an optical wave guide path in the same fouled condition as the surface of an insulator so as to measure the precise amount of fouling at real time by bonding an optical fibre for directing light to the optical wave guide path onto the surface of the insulator to bring the optical wave guide path into contact with the surface of the insulator. CONSTITUTION:Optical fiber sections 4 joined respectively to both sides of a wave guide path 1 are fixed to an insulator 2 via a bonding agent 3 so as to bring the wave guide path into contact with the surface of the insulator 2. Because in this construction no bonding-agent 3 or the like is used at the part of the wave guide path 1, the wave guide path 1 is fouled in the same fouled condition as a general insulator. The amount of fouling can accordingly be measured very accurately at real time. Besides, a groove having an outside diameter of not more than that of the wave guide path 1 may be formed in the surface of the insulator to install the wave guide path 1 in the groove, or the wave guide path 1 may be spot-welded to the surface of the insulator with a space held toward the insulator.

7. 发明专利

JP2008311124A Compound cable 审中-公开
标题翻译：复合电缆
公开(公告)号：JP2008311124A
公开(公告)日：2008-12-25
申请号：JP2007158726
申请日：2007-06-15
申请人： Hitachi Cable Ltd , 日立電線株式会社
发明人： HIRANO MITSUKI , YASUDA HIRONORI , WATANABE AKIRA , ENDO SHIGEHIRO , NAGAI RYO , SHIBATA TOMOKAZU , NISHIDATE AYUMI
IPC分类号： H01B7/00 , G02B6/44 , H01B7/08 , H01B11/22
摘要： PROBLEM TO BE SOLVED: To provide a compound cable which has a few transmission loss and has a small outer diameter of the cable. SOLUTION: The compound cable includes: an assembled stranded wire 4 in which an optical fiber 3 and an electric signal wire 2 are stranded; and a covering layer 5 formed around the assembled stranded wire 4. The electric signal wire 2 is arranged at least at the central part of the assembled stranded wire 4, and a plurality of the optical fibers 3 are arranged around the electric signal wire 2 arranged at the central part so that they may be symmetrical to the center of the assembled stranded wire 4. COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：提供一种传输损耗少且电缆外径小的复合电缆。解决方案：复合电缆包括：组合的绞线4，其中光纤3和电信号线2被绞合在其中; 以及在组合绞线4周围形成的覆盖层5.电信号线2至少配置在组合绞合线4的中央部，多根光纤3配置在电信线2的周围，配置在中心部分，使得它们可以与组装的绞线4的中心对称。版权所有：（C）2009，JPO＆INPIT

8. 发明专利

JP2005128074A Optical fiber and optical fiber sensor to measure physical quantity of concrete structure 有权
标题翻译：光纤和光纤传感器测量混凝土结构物理量
公开(公告)号：JP2005128074A
公开(公告)日：2005-05-19
申请号：JP2003360726
申请日：2003-10-21
申请人： Hitachi Cable Ltd , Nippon Telegr & Teleph Corp , Shimizu Corp , 日本電信電話株式会社 , 日立電線株式会社 , 清水建設株式会社
发明人： OMURO AKIRA , ENDO SHIGEHIRO , NARUSE HIROSHI , KUMAGAI HITOSHI
IPC分类号： G01L1/24 , G02B6/44
摘要： PROBLEM TO BE SOLVED: To provide an optical fiber in which productivity is high, bending rigidity is made uniform and handling is made easy and to provide an optical fiber sensor to measure physical quantity of a concrete structure.
SOLUTION: An anti-side pressure coating layer 2 is formed on the outer periphery of a primary coated optical fiber 1 and a foamed coating layer 3 is formed on the outer periphery of the anti-side pressure coating layer 2 so that bending rigidity is made uniform and handling during a burying work is improved. Moreover, productivity is not reduced because no emboss process is required and only an extrusion process is needed.
COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题为了提供一种生产率高的光纤，使弯曲刚性均匀，处理容易，并提供一种光纤传感器来测量混凝土结构的物理量。解决方案：在一次涂覆光纤1的外周形成防侧压涂层2，在防侧压涂层2的外周形成发泡涂层3，使弯曲使刚性均匀，并且掩埋作业中的处理提高。此外，由于不需要压花加工而仅需要挤出工艺，所以生产率不降低。版权所有（C）2005，JPO＆NCIPI

9. 发明专利

JPH0694545A OPTICAL FIBER TYPE TEMPERATURE DISTRIBUTION MEASURING METHOD 失效
公开(公告)号：JPH0694545A
公开(公告)日：1994-04-05
申请号：JP24355592
申请日：1992-09-11
申请人： HITACHI CABLE
发明人： ENDO SHIGEHIRO
IPC分类号： G01K3/00 , G01K11/12
摘要： PURPOSE:To accurately measure the temp. distribution of an object to be measured. CONSTITUTION:In an optical fiber type temp. distribution measuring method, a predetermined pulse beam is supplied to a sensor optical fiber using a semiconductor laser 25 and the Stokes lines and antiStokes lines of Raman scattering beam generated in the sensor optical fiber are detected and, on the basis of the intensity distributions of both of Stokes and anti-Stokes lines and the loss of the sensor optical fiber, the temp. distribution of an object to be measured is measured. An optical filter 27 changed in transmissivity and reflectivity corresponding to a wavelength is arranged on the light path of the back emitting beam of the semiconductor laser 25 and the oscillation wavelength of the semiconductor laser 25 is calculated from the quantity of the transmitted beam from the semiconductor laser 25 and the quantity of reflected beam from the optical filter 27 and the semiconductor laser 25 is controlled so that the oscillation wavelength becomes constant.

10. 发明专利

JPH04181131A OPTICAL FIBER DISTRIBUTION-TYPE TEMPERATURE SENSOR 失效
公开(公告)号：JPH04181131A
公开(公告)日：1992-06-29
申请号：JP30704090
申请日：1990-11-15
申请人： TOKYO ELECTRIC POWER CO , HITACHI CABLE
发明人： OZAWA YASUO , TSUTSUI TERUAKI , HASHIBA KEIICHI , SUGIYAMA KOICHI , YAMAMOTO SATORU , ENDO SHIGEHIRO , KAWAKAMI HIROSHI , TOKUSHIMA AKIRA
IPC分类号： G01K11/12
摘要： PURPOSE:To improve measurement accuracy by permitting through an optical multiplexer/demultiplexer and separating light of a specific wavelength region of backscattered light which has returned from an optical fiber for sensor whose terminal has been subjected to non-reflection treatment and by leading an optical signal into a light receiver. CONSTITUTION:Light of wavelength lambda0 from a pulse light source 4 is incident from a connection port P1 of an optical multiplexer/demultiplexe 15, and after it transmits through optical filters F11, F21, it is incident to an optical fiber 6 for a sensor of a connection port P2. Of backscattered light which returns from the optical fiber 6 whose terminal is subjected to non-reflection treatment, anti-stokes light of wavelength lambdaa is incident from the connection port P2 and then outgoes from the optical multiplexer/demultiplexe 15 via optical filters F11, F22, F23 and a connection port P3 to be led into an anti-stokes light measurement system 30a. Stokes light of wavelength lambdas is incident from the connection port P2, and then it outgoes from the optical multiplexer/demultiplexer 15 via optical filters F21, F11, F12, F13 and a connection port P4 to be led into a stokes light measurement system 30b. Outputs from the measurement systems 30a, 30b are subjected to arithmetic processing in a temperature distribution calculation circuit 11, and temperature distribution obtained by the calculation is displayed on a display unit 16.

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