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10 条记录 (耗时 0.01 秒)

    Method and device for diagnosing insulation deterioration of an electrical apparatus
    1.
    发明公开
    Method and device for diagnosing insulation deterioration of an electrical apparatus 失效
    装置和方法用于检测损坏的电气设备的绝缘

    公开(公告)号：EP0816830A3

    公开(公告)日：1999-06-09

    申请号：EP97109782.9

    申请日：1997-06-16

    申请人： HITACHI, LTD.

    发明人： Takezawa, Yoshitaka ,  Ito, Yuzo ,  Sato, Shigekatsu

    IPC分类号： G01N21/31 ,  G01R31/12

    CPC分类号： G01N21/31 ,  G01R31/1218

    摘要： In order to diagnose non-distructively the deterioration degree of such as insulation oil and insulation paper during operation of an oil filled electrical machine and apparatus without stopping the operation thereof, a deterioration degree disgnosis method for the oil filled electrical machine and apparatus makes use of optical fibers (6, 7) and oil immersed probe (5) and diagnoses the deterioration degree of an insulation paper non-distructively based on reflection absorbance difference between those for any two wavelengths of the insulation paper.

    Method and apparatus for paper material discrimination
    5.
    发明公开
    Method and apparatus for paper material discrimination 有权
    Vorrichtung zur Unterscheidung von Papiermaterial

    公开(公告)号：EP1233261A1

    公开(公告)日：2002-08-21

    申请号：EP02003592.9

    申请日：2002-02-15

    申请人： Hitachi, Ltd.

    发明人： Uemura, Toshiro ,  Takezawa, Yoshitaka ,  Kano, Mitsunari c/o Hitachi Systems&Services, Ltd. ,  Katagiri, Junichi ,  Mizuno, Eiji

    IPC分类号： G01N21/35 ,  G01N21/31 ,  G01N33/34

    CPC分类号： G01N21/3563 ,  G01N21/3151 ,  G01N21/359 ,  G01N33/346 ,  G07D7/1205

    摘要： A bill discriminating method of discriminating a paper material independent of a light/dense pattern caused by a difference of manufacturing steps and discriminating a paper material of paper without being influenced by humidity or deterioration of the paper material is provided. Two kinds of near-infrared rays in different near-infrared wavelength ranges are irradiated onto the paper, thereby discriminating the paper material of the paper by using an absorbance difference (DA) between photometric values.

    摘要翻译： 提供了一种用于区分不同于制造步骤的差异导致的纸张材料的纸材的纸币识别方法，并且在不受湿度或纸材劣化的情况下区分纸张的纸张材料。 将不同近红外线波长范围内的两种近红外线照射到纸上，通过使用光度值之间的吸光度差（DA）来区分纸张的纸材。

    New polymers, optical transmitting systems and optical members and their use
    7.
    发明公开
    New polymers, optical transmitting systems and optical members and their use 失效
    聚合物，光传输系统及光学元件和它们的用途。

    公开(公告)号：EP0454165A2

    公开(公告)日：1991-10-30

    申请号：EP91106851.8

    申请日：1991-04-26

    申请人： HITACHI, LTD.

    发明人： Takezawa, Yoshitaka ,  Ohara, Shuichi ,  Tanno, Seikich ,  Taketani, Noriaki ,  Shimura, Masato

    IPC分类号： C08G65/40 ,  C08G61/12 ,  G02B1/04 ,  G02B6/16

    CPC分类号： F02P7/073 ,  G02B1/041 ,  G02B1/048 ,  G02B6/02033

    摘要： The invention relates to amorphous organic polymers satisfying the equations I and II:

    (ρ/M)'(9.1 x 10⁻⁵·n CH + 9.1 x 10⁻⁴·n NH

    wherein are:

    ρ the polymer density (g/cm³),
    M the molecular weight of the repeating units (g/mol),
    n CH the number of C-H bonds in the repeating units,
    n NH the number of N-H bonds in the repeating units,
    n OH the number of O-H bonds in the repeating units,
    n C the total number of benzene rings in the repeating units,
    n O the number of benzene rings adjacent to a carbonyl group in the repeating units,

    and
    n S the number of benzene rings adjacent to a sulfur atom in the repeating units.

    The fluorine content being
    The invention further provides optical members such as lenses and waveguide structures, and particularly optical transmitting systems, comprising an optical transmitting portion made of these polymers. The invention also relates to the application of these polymers, optical members, waveguide structures and transmitting systems, particularly for engine control systems. The invention permits to realize optical transmission distances more than ten times longer (100m) than with conventional systems.

    摘要翻译： 本发明涉及一种无定形有机聚合物满足方程I和II：（RHO /M)'(9.1×10 < - > <5> .nCH + 9.1×10 < - > <4> + .nNH 1.5×10 < - > <3> .nOH）<5.3×10 < - > <6>（I），（RHO / M）（NC + NO + 3.nS）<2.6×10 < - > <2>（II），worin 有：RHO聚合物密度（克/厘米<3>）中，M的分子量的重复单元的（克/摩尔）N CH CH键中的重复单元数n NH NH键的重复单元的数量 ，OH的OH键的重复单元的数目，NC苯环中的重复单元的总数，不苯环的相邻于重复单元的羰基，和NS苯环的邻近数目的数目 在重复单元中硫原子。 重量的氟的含量为<40％通过，而氘取代度为

    Method and device for diagnosing insulation deterioration of an electrical apparatus
    9.
    发明公开
    Method and device for diagnosing insulation deterioration of an electrical apparatus 失效
    装置和方法用于检测损坏的电气设备的绝缘

    公开(公告)号：EP0816830A2

    公开(公告)日：1998-01-07

    申请号：EP97109782.9

    申请日：1997-06-16

    申请人： HITACHI, LTD.

    发明人： Takezawa, Yoshitaka ,  Ito, Yuzo ,  Sato, Shigekatsu

    IPC分类号： G01N21/31 ,  G01R31/12

    CPC分类号： G01N21/31 ,  G01R31/1218

    摘要： In order to diagnose non-distructively the deterioration degree of such as insulation oil and insulation paper during operation of an oil filled electrical machine and apparatus without stopping the operation thereof, a deterioration degree disgnosis method for the oil filled electrical machine and apparatus makes use of optical fibers (6, 7) and oil immersed probe (5) and diagnoses the deterioration degree of an insulation paper non-distructively based on reflection absorbance difference between those for any two wavelengths of the insulation paper.

    摘要翻译： 为了诊断非distructively颜色的劣化程度：如绝缘油和绝缘纸填充电机和装置的油的外科手术过程中不停止其操作，用于填充电机器和设备的油的劣化程度disgnosis方法利用 光纤（6,7）和油浸探针（5）和诊断绝缘纸的劣化程度的非distructively基于那些用于绝缘纸中的任何两个波长之间的反射吸收率差。

    New polymers, optical transmitting systems and optical members and their use
    10.
    发明公开
    New polymers, optical transmitting systems and optical members and their use 失效
    新型聚合物，光学发射系统和光学成员及其使用

    公开(公告)号：EP0454165A3

    公开(公告)日：1993-01-20

    申请号：EP91106851.8

    申请日：1991-04-26

    申请人： HITACHI, LTD.

    发明人： Takezawa, Yoshitaka ,  Ohara, Shuichi ,  Tanno, Seikich ,  Taketani, Noriaki ,  Shimura, Masato

    IPC分类号： C08G65/40 ,  C08G61/12 ,  G02B1/04 ,  G02B6/16

    CPC分类号： F02P7/073 ,  G02B1/041 ,  G02B1/048 ,  G02B6/02033

    摘要： The invention relates to amorphous organic polymers satisfying the equations I and II: (ρ/M)'(9.1 x 10⁻⁵·n CH + 9.1 x 10⁻⁴·n NH
    wherein are:
    ρ the polymer density (g/cm³), M the molecular weight of the repeating units (g/mol), n CH the number of C-H bonds in the repeating units, n NH the number of N-H bonds in the repeating units, n OH the number of O-H bonds in the repeating units, n C the total number of benzene rings in the repeating units, n O the number of benzene rings adjacent to a carbonyl group in the repeating units, and n S the number of benzene rings adjacent to a sulfur atom in the repeating units. The fluorine content being
    The invention further provides optical members such as lenses and waveguide structures, and particularly optical transmitting systems, comprising an optical transmitting portion made of these polymers. The invention also relates to the application of these polymers, optical members, waveguide structures and transmitting systems, particularly for engine control systems. The invention permits to realize optical transmission distances more than ten times longer (100m) than with conventional systems.