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1. 发明专利

JP2012247236A Optical current transformer 有权
标题翻译：光电流互感器
公开(公告)号：JP2012247236A
公开(公告)日：2012-12-13
申请号：JP2011117606
申请日：2011-05-26
申请人： Hitachi Ltd , 株式会社日立製作所 , Toko Electric Corp , 東光電気株式会社 , Tokyo Electric Power Co Inc:The , 東京電力株式会社
发明人： CHO ISAMU , YAMAGUCHI TATSUFUMI , SHIOZAWA DAIGORO , KONDO REISHI
IPC分类号： G01R15/24
CPC分类号： G01R15/246 , G01R15/247
摘要： PROBLEM TO BE SOLVED: To provide an optical current transformer for suppressing a mechanical stress to be applied to the glass fiber element wire of an optical sensor fiber, and for reducing the error of current measurement.SOLUTION: An optical sensor fiber 10 configured by applying a protective coating material 10B to a glass fiber element wire 10A is arranged in the periphery of an energizing conductor 1. The optical sensor fiber 10 is configured by arranging a light polarizer/detector part 11 at one end side, and fixing a ferrule 15 to the end of the glass fiber element wire 10A from which the protective coating material 10B has been removed, and arranging a reflecting member 12 on the end face of the glass fiber element wire 10A to which the ferrule 15 has been fixed at the other end side. A thermal stress absorption part 20 configured such that the end of the glass fiber element wire 10A is formed as a free end which is movable in an optical axial direction is arranged at the other end side of the optical sensor fiber 10. The thermal stress absorption part 20 is configured of a protection cover 21 formed by closing the reflecting member 12 side for surrounding the end of the optical sensor fiber 10 and an adhesion part 22 for fixing the protection cover 21 to the outer peripheral face of the protective coating material 10B.
摘要翻译：解决的问题：提供一种光电流互感器，用于抑制对光传感器光纤的玻璃纤维丝线施加的机械应力，并减少电流测量的误差。解决方案：通过在玻璃纤维元件线10A上施加保护涂层材料10B而配置的光学传感器光纤10布置在激励导体1的周围。光学传感器光纤10通过布置光偏振器/检测器在一端侧的部分11，将套圈15固定在玻璃纤维丝线10A的已经被去除了保护涂层材料10B的端部，并将反射部件12布置在玻璃纤维丝线10A的端面上套圈15已固定在另一端侧。热应力吸收部20被配置为使得玻璃纤维丝线10A的端部形成为在光轴方向上可移动的自由端，在光传感器纤维10的另一端侧。热应力吸收部分20由保护盖21构成，该保护盖21通过闭合用于包围光学传感器光纤10的端部的反射部件12侧和用于将保护盖21固定到保护涂层材料10B的外周面的粘合部22。版权所有（C）2013，JPO＆INPIT

2. 发明专利

JP2003272888A Illumination device 有权
标题翻译：照明装置
公开(公告)号：JP2003272888A
公开(公告)日：2003-09-26
申请号：JP2002073538
申请日：2002-03-18
申请人： Toko Electric Corp , Tokyo Electric Power Co Inc:The , 東京電力株式会社 , 東光電気株式会社
发明人： YAMAGUCHI TATSUFUMI , NAGANUMA OSAMU , MAESAKI TSUNEJI , HARA MUNENARI
IPC分类号： F21V21/22 , F21L13/00 , F21V21/26 , F21Y101/00 , H01M10/44 , H01M10/60 , H01M10/613 , H01M10/615 , H01M10/62 , H01M10/6571 , H05B41/282 , H01M10/50
CPC分类号： Y02B20/183
摘要： PROBLEM TO BE SOLVED: To provide an illumination device using NAS battery that can be used even in the place where the service power supply cannot be obtained and does not generate a noise or harmful exhaust gas. SOLUTION: The illumination device comprises a flood-light 200 having an illumination lamp 201 and a power supply device 100 for supplying electricity to the illumination lamp 201. The power supply device 100 comprises a sodium and sulfur battery 109, a rectification circuit 101, a step-up converter 103, and an electrolytic capacitor 104 or the like for converting the DC voltage into the AC voltage, a step-down chopper 106 that lowers the output voltage of the converter 103 and supplies to the battery 109 to charge the battery 109, a step-up chopper 110 for raising the output voltage at the discharge of the battery 109, an inverter 105 that converts the DC output voltage into the AC voltage and supplies to the flood-light 200, and a contact 114 or the like for heating the battery 109 by the output voltage of the inverter 105 at the discharge of the battery 109. COPYRIGHT: (C)2003,JPO
摘要翻译：要解决的问题：提供一种即使在不能获得服务电源并且不产生噪声或有害废气的地方也可以使用的使用NAS电池的照明装置。解决方案：照明装置包括具有照明灯201的泛光灯200和用于向照明灯201供电的供电装置100.电源装置100包括钠电池和硫电池109，整流电路 101，升压转换器103和用于将DC电压转换为AC电压的电解电容器104等;降压斩波器106，其降低转换器103的输出电压，并向电池109充电，电池109，用于提高电池109的放电时的输出电压的升压斩波器110，将DC输出电压转换成AC电压并供给到泛光灯200的反相器105，以及触点114或用于在电池109的放电时通过反相器105的输出电压来加热电池109.版权所有（C）2003，JPO

3. 发明专利

JP2013053855A Error estimation device for electronic current transformer 有权
标题翻译：电流互感器误差估计装置
公开(公告)号：JP2013053855A
公开(公告)日：2013-03-21
申请号：JP2011190107
申请日：2011-08-31
申请人： National Institute Of Advanced Industrial & Technology , 独立行政法人産業技術総合研究所 , Toko Electric Corp , 東光電気株式会社 , Tokyo Electric Power Co Inc:The , 東京電力株式会社
发明人： YAMADA TATSUJI , YAMAGUCHI TATSUFUMI
IPC分类号： G01R19/00 , G01R35/00
摘要： PROBLEM TO BE SOLVED: To provide an error estimation device for an electronic current transformer that complies with IEC 60044-8 and IEC 61850-9-2.SOLUTION: An error estimation device comprises: signal generation means for generating a pulse signal and a sampling trigger signal; current generation means for generating a test current; a reference current transformer; current-voltage conversion means for performing conversion into a reference voltage; a sampler for performing A/D conversion on the basis of the sampling trigger signal to generate reference sampling information; frequency conversion means for performing Fourier transform on the reference sampling information; an electronic current transformer for converting the test current into a voltage signal; a merging unit for generating packet information that includes sampling information to be inspected; sampling information extraction means for extracting the sampling information to be inspected; frequency conversion means for performing Fourier transform on the sampling information to be inspected; and error calculation means for calculating errors in a current value and a phase value in the electronic current transformer.
摘要翻译：要解决的问题：提供符合IEC 60044-8和IEC 61850-9-2的电子电流互感器的误差估计装置。解决方案：一种误差估计装置，包括：产生脉冲信号和采样触发信号的信号产生装置; 用于产生测试电流的电流产生装置; 参考电流互感器; 电流 - 电压转换装置，用于执行转换成参考电压; 采样器，用于根据采样触发信号进行A / D转换，以产生参考采样信息; 用于对所述参考采样信息进行傅里叶变换的频率转换装置; 用于将测试电流转换成电压信号的电子电流互感器; 用于生成包括要检查的采样信息的分组信息的合并单元; 采样信息提取装置，用于提取待检查的采样信息; 频率转换装置，用于对待检查的采样信息进行傅里叶变换; 以及用于计算电流互感器中的电流值和相位值的误差的误差计算装置。版权所有（C）2013，JPO＆INPIT

4. 发明专利

JP2004319111A Electric cooking heater 审中-公开
公开(公告)号：JP2004319111A
公开(公告)日：2004-11-11
申请号：JP2003107666
申请日：2003-04-11
申请人： Toko Electric Corp , Tokyo Electric Power Co Inc:The , 東京電力株式会社 , 東光電気株式会社
发明人： YAMAGUCHI TATSUFUMI , SEKI SATOYUKI , MAESAKI TSUNEJI , SAKAINO KAORU , ISHII HIDEO , KOBAYASHI KAZUYUKI
IPC分类号： G01D7/00 , G01K1/14 , G01K11/12 , G09F3/02 , G09F7/16 , H05B6/12
摘要： PROBLEM TO BE SOLVED: To provide an electric cooking heater in which the temperature of the heated part can be detected at a low cost and a temperature information display part serving as a display is provided, and which arouses an attention to a cooking operator by the temperature information display part provided at the top plate, and incorporates safety sufficiently. SOLUTION: This is the electric cooking heater which comprises a heating part 2 for generating magnetic lines of force for flowing an eddy current to the heated object, a top plate 7 covering the top face of the heating part 2, and a temperature information display part 8 arranged on the top plate 7 and changes the display sensing the temperature. This temperature information display part 8 is a display part formed by a heat-sensitive paint that changes color sensing the temperature change. COPYRIGHT: (C)2005,JPO&NCIPI

5. 发明专利

JP2004219120A Voltage sensor 有权
公开(公告)号：JP2004219120A
公开(公告)日：2004-08-05
申请号：JP2003003790
申请日：2003-01-10
申请人： Toko Electric Corp , Tokyo Electric Power Co Inc:The , 東京電力株式会社 , 東光電気株式会社
发明人： MIZUMOTO KUNIHIKO , NAGANUMA OSAMU , YAMAGUCHI TATSUFUMI , TANIGUCHI YOSHIMASA , YOSHIKAWA MASAHIDE , HIRAI TAKAO
IPC分类号： G01R15/14 , G01R19/00 , H02H9/02 , H02H9/04
摘要： PROBLEM TO BE SOLVED: To provide a voltage sensor capable of measuring lightning surge precisely. SOLUTION: The voltage sensor comprises a sensor section 10 for emitting first and second light when voltage to be measured is positive and negative, respectively; an optical fiber cable 20 for transmitting the first and second light; and a signal processing circuit section 30 that converts the first and second light to first and second voltage signals, respectively, subtracts the second voltage signal from the first one for generating a surge voltage signal before correction, and performs correction for outputting a surge voltage signal. COPYRIGHT: (C)2004,JPO&NCIPI

6. 发明专利

JP2009281829A Current measuring apparatus 审中-公开
标题翻译：当前测量装置
公开(公告)号：JP2009281829A
公开(公告)日：2009-12-03
申请号：JP2008133555
申请日：2008-05-21
申请人： Tokyo Electric Power Co Inc:The , 東京電力株式会社
发明人： KUROSAWA KIYOSHI , YAMAGUCHI TATSUFUMI , KONDO REISHI
IPC分类号： G01R15/24 , G01R19/00
摘要： PROBLEM TO BE SOLVED: To provide a current measuring apparatus having high sensitivity and capable of reducing the effects of noise. SOLUTION: The current measuring apparatus includes: a laser beam source for outputting a modulated laser beam having a frequency higher than that of a current to be measured; a polarization maintaining fiber for making the laser beam from the laser beam source incident from one end and transmitting it; a first λ/4 wavelength plate for converting two linearly polarized waves, which are transmitted from the polarization maintaining fiber and have the directions of vibrations at right angles to each other, into two circularly polarized waves having different directions of rotation; an optical fiber sensor circularly arranged in the circumference of a conductor through which the current to be measured flows, reciprocally transmitting the two circularly polarized waves, providing Faraday rotation corresponding to the magnitude of the current to be measured, and emitting them to the side of the first λ/4 wavelength plate; a second λ/4 wavelength plate for converting two linearly polarized waves, which are achieved by the passage and emission of the two circularly polarized waves through the first λ/4 wavelength plate and the polarization maintaining fiber, into two elliptically polarized waves; and an optical analyzer for making the two elliptically polarized waves incident and emitting two linearly polarized waves having amplitudes of a ratio corresponding to Faraday rotation. COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：提供具有高灵敏度并能够降低噪声影响的电流测量装置。解决方案：电流测量装置包括：激光束源，用于输出频率高于待测电流的调制激光束; 用于使来自激光光源的激光束从一端入射并传输的偏振保持光纤; 用于将从偏振保持光纤传播并且具有彼此成直角的振动方向的两个线偏振波转换成具有不同旋转方向的两个圆偏振波的第一λ/ 4波长板; 光纤传感器，圆形布置在导体的圆周中，待测电流通过该光纤传感器往复传播两个圆极化波，提供与待测电流的大小相对应的法拉第旋转，并将其发射到第一个λ/ 4波长板; 用于将通过第一λ/ 4波长板和偏振光保持光纤的两个圆偏振波的通过和发射而实现的两个线偏振波转换为两个椭圆偏振波的第二λ/ 4波长板; 以及用于使两个椭圆偏振波入射并发射具有对应于法拉第旋转的比率的幅度的两个线偏振波的光学分析器。版权所有（C）2010，JPO＆INPIT

7. 发明专利

JP2009047472A Current measuring device 有权
标题翻译：电流测量装置
公开(公告)号：JP2009047472A
公开(公告)日：2009-03-05
申请号：JP2007211814
申请日：2007-08-15
申请人： Tokyo Electric Power Co Inc:The , 東京電力株式会社
发明人： KUROSAWA KIYOSHI , KONDO NORIYUKI , YAMAGUCHI TATSUFUMI
IPC分类号： G01R15/24
摘要： PROBLEM TO BE SOLVED: To provide a miniaturizable and cost-reducible current measuring device capable of facilitating an assembly work of the device. SOLUTION: In this current measuring device, the first linearly polarized light and the second linearly polarized light transmitted through a polarization-plane holding fiber are converted into the first circularly polarized light and the second circularly polarized light by the first λ/4 plate, and allowed to enter an optical fiber sensor, and the third linearly polarized light and the fourth linearly polarized light acquired by allowing the first circularly polarized light and the second circularly polarized light transmitted reciprocatively in the optical fiber sensor and emitted therefrom to enter the first λ/4 plate are allowed to enter an analyzer through the second λ/4 plate, and a current to be measured is measured based on transmission light emitted from the analyzer. In the device, the second λ/4 plate is arranged so that the main axis has an inclination determined by adding about 45 ° to the main axis azimuth of the polarization-plane holding fiber relative to a reference plane, and the analyzer is arranged so that the main axis has the same inclination as the main axis azimuth of the polarization-plane holding fiber relative to the reference plane. COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：提供能够促进装置的组装工作的小型化且成本可降低的电流测量装置。解决方案：在该电流测量装置中，通过偏振面保持光纤透射的第一直线偏振光和第二线偏振光通过第一λ/ 4转换成第一圆偏振光和第二圆偏振光并且允许其进入光纤传感器，并且通过使第一圆偏振光和第二圆偏振光在光纤传感器中往复移动并从其发射而进入第三圆偏振光并且从其发射而获得的第三线偏振光和第四线偏振光允许第一λ/ 4板通过第二λ/ 4板进入分析器，并且基于从分析器发射的透射光来测量待测量的电流。在该装置中，第二λ/ 4板被配置为使得主轴具有通过与偏振面保持光纤的主轴方位相对于参考平面相加约45°的倾斜度，并且分析器被布置为主轴具有与偏振面保持光纤相对于参考平面的主轴方位相同的倾斜度。版权所有（C）2009，JPO＆INPIT

8. 发明专利

JP2008256368A Optical fiber current sensor, and current measuring method 审中-公开
标题翻译：光纤电流传感器和电流测量方法
公开(公告)号：JP2008256368A
公开(公告)日：2008-10-23
申请号：JP2007095375
申请日：2007-03-30
申请人： Tokyo Electric Power Co Inc:The , 東京電力株式会社
发明人： KUROSAWA KIYOSHI , KONDO NORIYUKI , YAMAGUCHI TATSUFUMI
IPC分类号： G01R15/24
摘要： PROBLEM TO BE SOLVED: To precisely control a polarized wavefront of light propagated through a sensor fiber in an optical fiber current sensor and a current measuring method using the optical fiber current sensor. SOLUTION: This optical fiber current sensor includes a Faraday rotator 30 and a polarized wave control means 20, and the polarized wave control means 20 is constituted of the second sensor fiber 21, and a current coil 22 disposed to surround the second sensor fiber 21. Linear polarized light imparted with Faraday rotation gets incident into the first sensor fiber 11 for measuring a current to be measured I, by the Faraday rotator 30 and the polarized wave control means 20. A control current I ctrl flowing in the current coil 22 is regulated to control thereby the polarized wavefront of the linear polarized light incident into the first sensor fiber 11. COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：精确控制通过光纤电流传感器中的传感器光纤传播的光的偏振波前和使用光纤电流传感器的电流测量方法。解决方案：该光纤电流传感器包括法拉第旋转器30和偏振波控制装置20，偏振波控制装置20由第二传感器光纤21和设置成围绕第二传感器的电流线圈22构成带法拉第旋转的线性偏振光通过法拉第旋转器30和偏振波控制装置20入射到第一传感器光纤11中，用于测量待测电流I。控制电流I < 调节流过电流线圈22的SB“，从而控制入射到第一传感器光纤11中的线偏振光的偏振波前。（C）2009，JPO＆INPIT

9. 发明专利

JP2009244230A Sensor fiber convolutional turning direction displaying technique 有权
标题翻译：传感器光纤旋转方向显示技术
公开(公告)号：JP2009244230A
公开(公告)日：2009-10-22
申请号：JP2008094181
申请日：2008-03-31
申请人： Tokyo Electric Power Co Inc:The , 東京電力株式会社
发明人： KUROSAWA KIYOSHI , YAMAGUCHI TATSUFUMI , KONDO REISHI
IPC分类号： G01R15/24
摘要： PROBLEM TO BE SOLVED: To provide an apparatus preventing mis-installation of convolutional turning direction of a sensor fiber in convolutional operation convolving a sensor fiber of a reflection-type fiber current measuring device around an measured object such as cables and the like. SOLUTION: In order to implement convolutional turning of the sensor fiber 1 so as to conform a measuring direction of the sensor fiber 1 to a direction of the current flowing through the measured object, an indication 7 is installed, indicating a direction forced to agree with the flowing direction of measured current around periphery of the sensor fiber 1 turned conventionally around the measured object. COPYRIGHT: (C)2010,JPO&INPIT

10. 发明专利

JP2008256371A Optical fiber current sensor, and current measuring method 审中-公开
标题翻译：光纤电流传感器和电流测量方法
公开(公告)号：JP2008256371A
公开(公告)日：2008-10-23
申请号：JP2007095387
申请日：2007-03-30
申请人： Tokyo Electric Power Co Inc:The , 東京電力株式会社
发明人： KUROSAWA KIYOSHI , KONDO NORIYUKI , YAMAGUCHI TATSUFUMI
IPC分类号： G01R15/24
摘要： PROBLEM TO BE SOLVED: To precisely control a polarized wave front of light propagated through a sensor fiber in an optical fiber current sensor and a current measuring method using the optical fiber current sensor. SOLUTION: This optical fiber current sensor includes a polarized wave control means 40 constituted of a Faraday element 41, and a magnetic field generation means 42 for applying a magnetic field to the Faraday element 41, and is provided further with a magnetic field regulation means 421 for regulating a magnetic field H ctrl generated from the magnetic field generation means 42. The magnetic field H ctrl is regulated to control thereby the polarized wave front of the linear polarized light incident into the first sensor fiber 11 for measuring a current I to be measured. COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：精确控制通过光纤电流传感器中的传感器光纤传播的光的偏振波前面和使用光纤电流传感器的电流测量方法。解决方案：该光纤电流传感器包括由法拉第元件41构成的偏振波控制装置40和用于向法拉第元件41施加磁场的磁场产生装置42，并且还设置有磁场用于调节从磁场产生装置42产生的磁场H ctrl 的调节装置421被调节，从而控制线性的极化波前入射到第一传感器光纤11中以测量待测电流I的偏振光。版权所有（C）2009，JPO＆INPIT

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