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1. 发明专利

JP2000173844A CURRENT TRANSFORMER 失效
公开(公告)号：JP2000173844A
公开(公告)日：2000-06-23
申请号：JP34279798
申请日：1998-12-02
申请人： MITSUBISHI ELECTRIC CORP
发明人： MORISHITA HIKOZO , OCHI NAOTERU , NAKASAKI KAZUHIRO , OGURA SHINZO , UMENO CHIHARU
IPC分类号： H01F27/08 , H01F38/28
摘要： PROBLEM TO BE SOLVED: To provide a current transformer which is high in cooling efficiency even if it is small in size. SOLUTION: A wire is spirally wound on all the circumference of an annular iron core which is rectangular in cross section for the formation of an annular coil 1a, and a support 5 is composed of a cylinder 51 and a flange 52 provided to the one end of the cylinder 51. The three annular coils 1a are stacked up, the cylinder 51 is made to penetrate through the stacked annular coils 1a, square rod spacers 54 are pinched between the annular coil 1a on the flange 52 side and the flange 52, and spacers 55 are pinched between the cylinder 51 and the inner circumferential surface of the annular coils 1a for the formation of a current transformer 1. A bus 4 is provided through the center of the current transformer 1, and the current transformer 1 is capable of detecting a current that flows through the bus 4. A cooling path is formed by the spacers 54 and 55 between the annular coils 1a and the support 5 to effectively cool down the inside of the current transformer 1.

2. 发明专利

JPH04262271A CABLE WAY MONITOR 失效
公开(公告)号：JPH04262271A
公开(公告)日：1992-09-17
申请号：JP1416391
申请日：1991-02-05
申请人： MITSUBISHI ELECTRIC CORP
发明人： OGURA SHINZO , DOI SHOICHI , KOJIMA YASUAKI
IPC分类号： G01R29/00 , H01F38/20 , H02G1/02
摘要： PURPOSE:To obtain a stable power source of a cable way monitor provided to a cable way to measure an operation parameter of a power line, etc., and made to detect and transmit the operation parameter of the cable way. CONSTITUTION:In this construction, an electrode is arranged around a conductor 1 to detect a operation parameter, insulated from this conductor 1, and the charging current flowing through this electrode is converted into voltage to be made the power source of a cable way monitor. By this, the cable way monitor without receiving the influence of the cable way current and capable of operating stably is obtained.

3. 发明专利

JPS6288958A METHOD AND DEVICE FOR MEASURING AMOUNT IN PARAMAGNETIC BASE MATERIAL 失效
公开(公告)号：JPS6288958A
公开(公告)日：1987-04-23
申请号：JP23191385
申请日：1985-10-15
申请人： MITSUBISHI ELECTRIC CORP
发明人： OGURA SHINZO
IPC分类号： G01N27/72
摘要： PURPOSE:To measure the content of a paramagnetic material and the content of a ferromagnetic material without saturating the ferromagnetic material in a pellet and to reduce the size of a magnetizing coil by using nonmagnetic material characteristics with a different DC magnetic field. CONSTITUTION:The pellet 1b is magnetized with DC magnetic fields of circular coils 2 and 3. The output of a search coil 4 is passed through a delay device 8 and amplified 6 and the output of a search coil 5 is amplified 7; and those amplified voltages are processed by a differentiator 9, whose output is integrated 10. Its integral voltage is proportional to the amount of the ferromagnetic material when the coils 4 and 5 are equal in the number of turns. The voltage obtained by integrating 13 the output voltage of the amplifier 7, on the other hand, is processed by a differentiator 15 by adjusting the amplification factor of an amplifier 14 to obtain the amount of the paramagnetic material. Those amounts of the paramagnetic and ferromagnetic materials are recorded on a recording device 11.

4. 发明专利

JPS625173A METHOD AND APPARATUS FOR MIXING AMOUNT IN PARAMAGNETIC SUBSTANCE BASE 失效
公开(公告)号：JPS625173A
公开(公告)日：1987-01-12
申请号：JP14530285
申请日：1985-07-01
申请人： MITSUBISHI ELECTRIC CORP
发明人： OGURA SHINZO , YAMADA TADATOSHI , JIZO YOSHIHIRO
IPC分类号： G01N27/72
摘要： PURPOSE:To miniaturize a magnetization coil, by utilizing nonlinear magnetic characteristic of a ferromagnetic material without saturation thereof by two DC magnetic field and an AC magnetic field overlaping it to measure the content of a paramagnetic material and the ferromagnetic material in a pallet without saturation of the ferromagnetic material. CONSTITUTION:A magnetic body in a fuel rod 1 is DC magnetized at such an intensity of magnetic field as to cause no magnetic saturation while an AC magnetic field is applied thereto with an AC magnetization coil 4. With such an arrangement, the voltage entering an amplifier 8 through induction coils 6 and 7 will be the sum of the voltage due to changes in the magnetization of a paramagnetic material and a ferromagnetic material in a pallet. The differential voltage in the induction voltage between search coils 11 and 14 with an AC magnetization coil 10 is taken with an amplifier 13 and the differential voltage is taken with a differential amplifier 15 from the output of the amplifier 8 via a delay unit 14. The results enter a recorder 18 via an amplifier 16 to display the amount of the ferromagnetic material and the difference is determined with a differential amplifier 17 between the outputs of the amplifiers 8 and 16 to display the amount of the paramagnetic material on the recorder 18.

5. 发明专利

JPS6156974A Speed detector 失效
标题翻译：速度检测器
公开(公告)号：JPS6156974A
公开(公告)日：1986-03-22
申请号：JP17961284
申请日：1984-08-28
申请人： Mitsubishi Electric Corp
发明人： OGURA SHINZO , ARIKI MASAYUKI
IPC分类号： H02K21/38 , G01D5/245 , G01P3/488
摘要： PURPOSE: To enable an inexpensive manufacture, by providing a disc or a cylinder made of a better electrical conductor on the circumference of a pole body to eliminate a counter measure for a high voltage at an electric circuit section of a detector and the setting of a filter or the like to ensure a low level of the detection voltage.
CONSTITUTION: A cylinder 6 (replaceable by a disc) made of a better electric conductor is provided at a part of a pole body 2 and on the circumference of a permanent manet 3. Then, when the revolutions are low, a slow change in the magnetic flux of the pole body 2 will result in limited current induced in he cylinder 6 thereby producing little effect for reducing the magnetic flux passing through the pole body 2. Therefore, the induced voltage of a coil 5 in low revolutions generates a normal voltage. On the other hand, when the revolutions are high, the magnetic flux of the pole body 2 changes so fast as to increase the current induced in the cylinder 6 thereby reducing the flux passing through the pole body 2. Thus, the induced voltage in the high revolutions can be reduced.
COPYRIGHT: (C)1986,JPO&Japio
摘要翻译：目的：为了实现廉价的制造，通过在极体的圆周上提供由更好的电导体制成的圆盘或圆筒，以消除在检测器的电路部分处的高电压的对策，并且设置滤波器等，以确保检测电压的低电平。构成：在一个极体2的一部分和一个永久性的马甲3的圆周上设置由更好的电导体制成的圆筒6（由盘替换）。然后，当转数低时，磁极体2的磁通量将导致气缸6中感应的有限电流，从而对通过极体2的磁通量产生很小的影响。因此，线圈5在低转速下的感应电压产生正常电压。另一方面，当转数高时，极体2的磁通量变化如此快，以增加在气缸6中感应的电流，从而减少通过极体2的磁通。因此，在可以降低高转。

6. 发明专利

JPS5736506A Gasuzetsuendenkisochi 失效
公开(公告)号：JPS5736506A
公开(公告)日：1982-02-27
申请号：JP11062980
申请日：1980-08-12
申请人： Mitsubishi Electric Corp , Kansai Electric Power Co
发明人： II IORI , YAMAMOTO MASANORI , OGURA SHINZO , ADACHI TOSHIHARU , TAKATSUKA KEIZO
IPC分类号： H02B13/02 , H02B1/16

7. 发明专利

JP2002372552A Current measuring device 审中-公开
标题翻译：电流测量装置
公开(公告)号：JP2002372552A
公开(公告)日：2002-12-26
申请号：JP2001180338
申请日：2001-06-14
申请人： Mitsubishi Electric Corp , 三菱電機株式会社
发明人： OGURA SHINZO , AOKI HIROHIDE , TANIGUCHI HIROAKI , MAEDA YASUHIRO , OCHI NAOTERU
IPC分类号： G01R15/18 , G01R19/00 , H01F38/28
摘要： PROBLEM TO BE SOLVED: To provide a small-sized, easily-mountable and highly-precise current measuring device capable of reducing a current measurement error caused by variations of the winding density or variations of an interlinkage sectional area, and suppressing temperature rise. SOLUTION: This device is equipped with a measuring coil 2 having a circular core 2a comprising an insulator enclosing a bus bar 1 to be measured, and a secondary winding 2b wound on the core 2a, for measuring a current flowing in the bus bar 1 to be measured, and with a magnetic material structure 4 having a circular magnetic material 4a having roughly the same diameter as the measuring coil 2, enclosing the bus bar 1 to be measured around the center coincident with that of the measuring coil 2, and adjoining the measuring coil 2, and a short circuit winding 4b wound on the magnetic material 4a over the whole circumference so as to be interlinked with a magnetic flux passing through the magnetic material 4a, and having electrically short-circuited both ends.
摘要翻译：要解决的问题：提供一种小型，易于安装和高精度的电流测量装置，其能够降低由缠绕密度的变化或互连截面积的变化引起的电流测量误差并抑制温度升高。解决方案：该装置配备有测量线圈2，该测量线圈2具有包括封闭要测量母线1的绝缘体的圆形芯体2a和缠绕在芯体2a上的次级绕组2b，用于测量在母线1中流动的电流，测量，并且具有具有与测量线圈2的直径大致相同的圆形磁性材料4a的磁性材料结构4，围绕与测量线圈2的中心重合的中心围绕待测量母线1，并且邻接测量线圈2和在整个圆周上缠绕在磁性材料4a上的短路绕组4b，以便与通过磁性材料4a的磁通量相互连接，并且两端电气短路。

8. 发明专利

JPH07306229A CURRENT MEASURING INSTRUMENT 失效
公开(公告)号：JPH07306229A
公开(公告)日：1995-11-21
申请号：JP9985094
申请日：1994-05-13
申请人： MITSUBISHI ELECTRIC CORP
发明人： OGURA SHINZO , ITO KEITA
IPC分类号： G01R15/20 , G01R19/00 , H01F38/28
摘要： PURPOSE:To enhance the reliability by enhancing the winding density in the vicinity of the lead-out part of winding without sacrifice of mechanical strength in order to compensate for the measurement error of a current measuring instrument. CONSTITUTION:A plate 8 for holding a core 1 and a winding 3 integrally is disposed on the side face of the winding 3 and a spacer 7 having the same thickness as additional coils 5a, 5b is inserted between the winding 3 and the plate 8 where the additional coil 5a, 5b is not present.

9. 发明专利

JPH0684672A AMMETER FOR BUS 失效
公开(公告)号：JPH0684672A
公开(公告)日：1994-03-25
申请号：JP23345492
申请日：1992-09-01
申请人： MITSUBISHI ELECTRIC CORP
发明人： OGURA SHINZO
IPC分类号： G01R15/18 , H01F38/28 , H01F40/06 , G01R15/02
摘要： PURPOSE:To downsize ammeter for bus by detecting current flowing through a bus by means of a plurality of current detectors located at same position of bus. CONSTITUTION:A plurality of coils 3a, 3b are wound around an annular insulator core 2 disposed around a bus 1 and an external impedance ZL connected with the coils 3a, 3b is set as follows; ZL>N.E.(M-1)/(5X10 .I) where, M: number of coils, N: number of turns of each coil, E: voltage induced in the coil (V), I: current to be measured (A). Since a plurality of coils 3a, 3b are wound around a common core 2 disposed around the bus 1, ammeter can be downsized and since the external impedance ZL connected with the coils 3a, 3b is set higher than a predetermined value, accuracy does not deteriorate in the measurement of current.

10. 发明专利

JPH0643189A AMMETER 失效
公开(公告)号：JPH0643189A
公开(公告)日：1994-02-18
申请号：JP23948992
申请日：1992-09-08
申请人： MITSUBISHI ELECTRIC CORP
发明人： OGURA SHINZO
IPC分类号： G01R15/18 , G01R19/00 , G01R15/02
摘要： PURPOSE:To obtain an ammeter with a high measurement accuracy when measuring bus current according to the induced voltage of a coil. CONSTITUTION:Split coils 41-412 formed by winding a coil winding on the outer periphery surface of a cylinder core by a specific number of turns are constituted. Terminals 91-912 for regulating voltage are provided near the winding end of the coils windings of the split coils 41-412. Further, the split coils 41-412 are laid out on a plane which is vertical to the axis center of a bus 1 and are connected in series with an equal spacing at the same distance in reference to the axis center of the bus 1 so that the center axis may be equal to the tangential line of a circle in reference to the axis center of the bus 1.

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