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1. 发明专利

JP2007315756A Current sensor using magnetoresistive effect element and detection circuit thereof 审中-公开
标题翻译：使用磁感应效应元件的电流传感器及其检测电路
公开(公告)号：JP2007315756A
公开(公告)日：2007-12-06
申请号：JP2006142257
申请日：2006-05-23
申请人： J-Power Systems Corp , Kansai Electric Power Co Inc:The , 株式会社ジェイ・パワーシステムズ , 関西電力株式会社
发明人： YAMADA HIROYUKI , TAKAHASHI KAZUYA
IPC分类号： G01R15/20 , G01R33/02 , G01R33/09
摘要： PROBLEM TO BE SOLVED: To provide a current sensor that uses high-accuracy, practical magnetoresistive effect elements capable of acquiring the true value of a current on the basis of accurately determined field effect, even if the direction of the magnetic field generated by the current does not coincide with magnetic-field detection axes of the magnetoresistive effect elements, and to provide its detection circuit. SOLUTION: The current sensor 10 that uses the magnetoresistive effect elements 1a and 1b, of which resistance values change according to the strength of a magnetic field generated by a current I flowing through an electric wire uses the magnetoresistive effect elements 1a and 1b, arranged at the same location in the periphery of the electric wire, in such a way that their directions of arrangement are displaced by 90 degrees from each other, and divides the magnetic field into two components to detect them. The current sensor 10 is connected by electric wires 3a and 3b to the detection circuit 4 for detecting a current value, by a conversion circuit which vectorially combines outputs of the magnetoresistive effect elements 1a and 1b and converts it into true current value. A magnetoresistive effect element, having a biaxial detection axis, may be used instead of the biaxial detection axis 1a and 1b or concurrently with them. COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：为了提供使用高精度实用的磁阻效应元件的电流传感器，其能够基于精确确定的场效应来获取电流的真实值，即使产生的磁场的方向通过电流与磁阻效应元件的磁场检测轴不一致，并提供其检测电路。解决方案：使用磁阻效应元件1a和1b的电流传感器10，其电阻值根据流过电线的电流I产生的磁场的强度而变化，使用磁阻效应元件1a和1b 布置在电线周边的相同位置处，使得它们的布置方向相互偏移90度，并将磁场分成两部分进行检测。电流传感器10由电线3a和3b连接到用于检测电流值的检测电路4，通过矢量地组合磁阻效应元件1a和1b的输出并将其转换成真电流值的转换电路。可以使用具有双轴检测轴的磁阻效应元件代替双轴检测轴1a和1b或与它们同时使用。版权所有（C）2008，JPO＆INPIT

2. 发明专利

JP2009219244A Oil level sensor for existing cable oil tank, and fitting structure therefor 有权
标题翻译：现有电缆油罐油位传感器及其配套结构
公开(公告)号：JP2009219244A
公开(公告)日：2009-09-24
申请号：JP2008060308
申请日：2008-03-10
申请人： J-Power Systems Corp , Kansai Electric Power Co Inc:The , 株式会社ジェイ・パワーシステムズ , 関西電力株式会社
发明人： YAMADA HIROYUKI , TAKAHASHI KAZUYA
IPC分类号： H02G15/26 , G01F23/56
摘要： PROBLEM TO BE SOLVED: To provide an oil level sensor for an existing cable oil tank, along with its fitting structure, the level sensor acquiring data for remote monitoring with a simple structure and is easily provided to an existing OF cable oil tank. SOLUTION: An oil level gauge 2 provided outside an oil tank comprises: a cylindrical housing case 31 connected through connection pipings 25A and 25B; a probe 33 arranged in the housing case 31; a float 34 incorporating a permanent magnet 341, which is slipped over the probe 33 for free moving up/down; and a magnetostrictive oil level sensor 3 comprising a sensing part 32 attached to the probe 33. COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：为了为现有的电缆油箱提供油位传感器及其配件结构，液位传感器以简单的结构获取远程监控数据，并且易于提供给现有的OF电缆油箱。解决方案：设置在油箱外部的油位计2包括：通过连接管25A和25B连接的圆柱形壳体31; 布置在壳体31中的探头33; 包含永磁体341的浮子34，其滑过探针33以自由上下移动; 以及磁致伸缩油位传感器3，其包括附接到探头33的检测部分32.权利要求：（C）2009，JPO＆INPIT

3. 发明专利

JP2005164557A Optical sensor, monitoring system using it, and level monitoring system for ship 审中-公开
标题翻译：光学传感器，使用它的监测系统和水平监测系统
公开(公告)号：JP2005164557A
公开(公告)日：2005-06-23
申请号：JP2003423473
申请日：2003-12-19
申请人： J-Power Systems Corp , 株式会社ジェイ・パワーシステムズ
发明人： TAKAHASHI KAZUYA
IPC分类号： G01F23/64 , G02B26/02
摘要： PROBLEM TO BE SOLVED: To provide a simple and inexpensively constructed optical sensor causing no dirt on an optical system, a monitoring system using the optical sensor, and a level monitoring system for ship. SOLUTION: In a space 32 inside a case 31, right angle prisms 33a and 33b connected to optical fibers 34a and 34b are arranged face to face, and a float 36 moving upward/downward according to a level change and having a permanent magnet 37 is arranged in a space 35 formed below the optical system. A partition wall 38 sectioning the upper part and the lower part from each other is arranged in the space 35 for isolating the space 32 and the space 35 from each other. On the partition wall 38, a permanent magnet 39 is arranged movably upward/downward while facing the permanent magnet 37 through the same polarity, and a light shield plate 40 is stood on the permanent magnet 39. When the float 36 and the permanent magnet 37 are lifted according to the level change, an optical path based on the right angle prisms 33a and 33b is interrupted by the light shield plate 40 and light is not emitted to the optical fiber 34b, and consequently, upward movement of the level can be detected. COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：提供一种简单且廉价构造的光学传感器，其不会在光学系统上造成污物，使用光学传感器的监视系统和用于船舶的液位监视系统。解决方案：在壳体31内的空间32中，与光纤34a和34b连接的直角棱镜33a和33b面对面设置，浮子36根据水平变化向上/向下移动并具有永久磁体37布置在形成在光学系统下方的空间35中。在空间35中布置有将上部和下部彼此分隔开的分隔壁38，用于将空间32和空间35彼此隔离。在分隔壁38上，永久磁铁39以相同的极性面向永磁体37上下移动地配置，遮光板40位于永磁体39上。当浮子36和永久磁铁37 根据电平变化而升高，基于直角棱镜33a，33b的光路被遮光板40中断，光不发射到光纤34b，因此可以检测到水平面的向上移动。版权所有（C）2005，JPO＆NCIPI

4. 发明专利

JP2006030129A Monitoring system in manhole 有权
标题翻译：监狱系统
公开(公告)号：JP2006030129A
公开(公告)日：2006-02-02
申请号：JP2004213079
申请日：2004-07-21
申请人： Chubu Electric Power Co Inc , J-Power Systems Corp , 中部電力株式会社 , 株式会社ジェイ・パワーシステムズ
发明人： KOBAYASHI SHINICHI , MORIMOTO MARE , NIJO YOSHIO , WATANABE HIDEKI , TAKAHASHI KAZUYA
IPC分类号： G01D21/00
CPC分类号： Y02B60/50
摘要： PROBLEM TO BE SOLVED: To provide a monitoring system in a manhole that can appropriately acquire maintenance management information in the manhole when required, largely reduce power consumption, reduce the volume, and reduce cost.
SOLUTION: The monitoring system in the manhole comprises various sensors 4 for monitoring various circumstances of an underground power transmission line 2 installed in the manhole 20, a sensor 15 for start installed on a side surface of a sleeve 31 under a metallic outer lid 1, a monitoring device 14 linked to the sensors 4 and the sensor 15 for start, and an information display device 6 installed in a patrol vehicle 5 or the like of a ground section 30.
COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：为了提供在人孔中的监控系统，可以在需要时适当地获取人孔中的维护管理信息，大大降低功耗，减少体积，降低成本。解决方案：人孔中的监控系统包括用于监测安装在人孔20中的地下输电线路2的各种情况的各种传感器4，用于启动的传感器15安装在金属外壳下方的套筒31的侧表面上盖1，连接到传感器4的监视装置14和用于启动的传感器15以及安装在地面部分30的巡逻车辆5等中的信息显示装置6.（C）2006年， JPO＆NCIPI

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