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1. 发明专利

JPH0961467A OPTICAL MEASURING APPARATUS 失效
公开(公告)号：JPH0961467A
公开(公告)日：1997-03-07
申请号：JP21569295
申请日：1995-08-24
申请人： TOSHIBA CORP
发明人： TAKAHASHI MASAO , TERAI KIYOHISA , IKUTA SAKAE , NIWA KEIKO , TAMAGAWA TORU , MIURA HIROSHI
IPC分类号： G01R15/24 , G02F1/09
摘要： PROBLEM TO BE SOLVED: To provide an optical measuring apparatus capable of measuring an accurate current by reducing the influence of the decrease of the degree of polarization. SOLUTION: First and second LDs 1a, 1b having the same characteristics, first and second polarizers 2a, 2b and first and second Faraday element rows 3a, 3b are arranged under the same conditions. The rows 3a, 3b are placed in a magnetic field of the same conditions by conductors 4a, 4b. A current measuring unit 20 formed of a third Faraday element 17, a Pockels element 16 and a conductor 4c is provided at the output light side of the row 3a via a polarization-degree corrector 22. A polarization degree measuring unit 21 formed of a rotary Glan-Thompson prism 12, a driver 13, a photodiode 14 and a correcting calculator 15 is provided at the output light side of the row 3a. The calculator 15 is connected to the conductor 4c of the corrector 22.

2. 发明专利

JPH08278808A SIMULATION DEVICE 失效
公开(公告)号：JPH08278808A
公开(公告)日：1996-10-22
申请号：JP10711395
申请日：1995-04-07
申请人： TOSHIBA CORP
发明人： SAITO YOSHIAKI , TANAKA KAZUMA , YOSHIKAWA EIJI , MIURA HIROSHI
IPC分类号： G05B23/02
摘要： PURPOSE: To provide a simulation device which can correctly produce and change easily and quickly such systems as a pipeline system, etc., of a plant that are expressed in a network. CONSTITUTION: When the equipments and their connection states of a system are inputted through an input means 1, a system chart editing means 4 edits a system chart. The equipments to be included in the system chart are generated as the equipment objects by an equipment object generation means 5. A system model generation means 7 generate a system model based on the system chart produced by the means 4 and in a data structure that is not based on the equipments included in the system chart. Based on these system model and equipment objects, an execution control means 9 simulates the answers of the system.

3. 发明专利

JPH08254632A OPTICAL FIBER CONNECTOR AND ITS ASSEMBLING METHOD 失效
公开(公告)号：JPH08254632A
公开(公告)日：1996-10-01
申请号：JP5910695
申请日：1995-03-17
申请人： TOSHIBA CORP
发明人： TAKAHASHI MASAO , IKUTA SAKAE , TERAI KIYOHISA , TAMAGAWA TORU , MIURA HIROSHI , NIWA KEIKO
IPC分类号： G02B6/36 , G02B6/38
摘要： PURPOSE: To provide an optical fiber connector which is additionally improved in its reliability by lowering the double refraction of the optical fiber connector generated by causes exclusive of electromagnetic induction and to provide an assembling method for the optical fiber connector which improves the operability and degree of freedom in its assembling work. CONSTITUTION: An adhesive part 3 of the optical fiber connector is provided with an adjusting screw 12 which is an adjusting member for bending used to adjust the bending of an optical fiber 1. This adjusting screw 12 changes the radius of curvature of the optical fiber 1 by applying bending of the prescribed intensity to the fiber. The optical fiber 1 is adjusted in the magnitude of the double refraction by the adjusting screw 12 and is adhered and fixed where the measured value of the double fraction of the optical fiber 1 by a polarized light measuring instrument, not shown in Fig., attains zero.

4. 发明专利

JPH07333569A OPTICAL CURRENT TRANSFORMER 失效
公开(公告)号：JPH07333569A
公开(公告)日：1995-12-22
申请号：JP12750794
申请日：1994-06-09
申请人： TOSHIBA CORP
发明人： NIWA KEIKO , IKUTA SAKAE , TAKAHASHI MASAO , TERAI KIYOHISA , TAMAGAWA TORU , MIURA HIROSHI
IPC分类号： G01R15/24 , G01R19/00 , G02F1/09
摘要： PURPOSE:To provide a high performance optical current transformer capable of precisely measuring current over a wide range. CONSTITUTION:This transformer is provided with a high sensitivity measurement part A and the measurement part B with a wide dynamic range. In respective measurement parts A, B, a beam is sent from a light source 14 to a sensor optical part 11 through a light sending fiber 18, and the beam from the sensor optical part 11 is converted to an electric signal by detectors 15a, 15b through light receiving fibers 19a, 19b to be processed by a signal process circuit 16. The sensor optical part 11 in the measurement part A is provided with a high sensitivity sensor unit 31 incorporating a sensor 30 constituted of winding by n1 times around a conductor 2 and a reflection end 31a. The sensor optical part 11 in the measurement part B is provided with a low sensitivity sensor unit 32 for the wide dynamic range incorporating the sensor 30 constituted of winding by n2 (n2

5. 发明专利

JPH07174792A OPTICAL TYPE CURRENT MEASURING INSTRUMENT 失效
公开(公告)号：JPH07174792A
公开(公告)日：1995-07-14
申请号：JP32195593
申请日：1993-12-21
申请人： TOSHIBA CORP
发明人： MIURA HIROSHI , IKUTA SAKAE
IPC分类号： G01R15/24 , G01R19/00 , G02B6/00 , G02B6/02
摘要： PURPOSE:To provide an optical current measuring instrument whose measurement accuracy is improved. CONSTITUTION:An insulated plate-shaped member 5 which has an opening for inserting a conductor 2 inside and whose outer-surrounding is adhered to the inner wall of a tubular tank 1 is provided within the tubular tank 1 with a sealed insulation gas. An annular member 16 for fixing the optical fiber 4 rotating; around the conductor 2 from an upper part via a buffer material 19 is mounted onto the plate-shaped member 5, a specific optical equipment is mounted on the both end parts of the optical fiber 4, and then conducted current is measured based on the polarization state due to the Faraday effect of light passing through the optical fiber 4.

6. 发明专利

JPH06347485A OPTICAL MAGNETIC FIELD SENSOR 失效
公开(公告)号：JPH06347485A
公开(公告)日：1994-12-22
申请号：JP14079793
申请日：1993-06-11
申请人： TOSHIBA CORP
发明人： MIURA HIROSHI , IKUTA SAKAE , TAMAGAWA TORU
IPC分类号： G01R15/14 , G01R33/032 , G01R15/02
摘要： PURPOSE:To provide a high performance optical magnetic field sensor which can detect the electromagnetic field of a phase to measure at a high accuracy without receiving the influence of magnetic field of the other phase, when a three-phase package type gas-insulating apparatus is applied. CONSTITUTION:A coil 3 is formed by providing a coil forming member coaxially to a part of the conductor 1 of a gas-insulating apparatus, and a magnetic sensor 5 is provided inside the coil 3 to detect the magnetic field 4 in the axial direction. The magnetic sensor 5 is connected to an optical means 6 provided with an optical element arranged closely. The optical means 6 is connected to a photoelectric converter means 8 provided at the atmosheric side of the gas insulating apparatus through a light beam transmission means 7. Concretely, a single mode optical fiber is used as a magnetic sensor 5, and the optical element to compose the optical means 6 can be provided inside the conductor 1. Furthermore, the magnetic sensor and the optical means can be provided as a package inside a tubular member of nonmagnetic material provided in the conductor 1.

7. 发明专利

JPH0276280A PULSE LASER OSCILLATOR 失效
公开(公告)号：JPH0276280A
公开(公告)日：1990-03-15
申请号：JP22738388
申请日：1988-09-13
申请人： TOSHIBA CORP
发明人： MIURA HIROSHI , TAKAHASHI KENJI
IPC分类号： H01S3/097
摘要： PURPOSE:To improve energy utilization efficiency of a MPC circuit by dissipating residue charge of a capacitor of a magnetic pulse compression circuit(MPC circuit) into a reset circuit started by a trigger gap. CONSTITUTION:A reset coil winding 2 is wound around a donut-shaped core 1 of saturable reactors SI1 and SI2 of each stage and both edges of this reset coil winding 2 are connected to both edges of a capacitor C2 at the second stage through a trigger gap G and an impedance Z to constitute a reset circuit. Thus, residue charge of capacitor, generated when a MPC circuit operates is discharged through a reset coil winding, a trigger gap, and a series circuit of impedance, thus performing reset operation of saturable reactor automatically every time the operation of the MPC circuit is completed.

8. 发明专利

JPS62155526A WIRE BONDING DEVICE 失效
公开(公告)号：JPS62155526A
公开(公告)日：1987-07-10
申请号：JP29602085
申请日：1985-12-27
申请人： TOSHIBA CORP , TOSHIBA SEIKI KK
发明人： KUROMARU AKIRA , MIURA HIROSHI
IPC分类号： H01L21/60
摘要： PURPOSE:To facilitate the exchange work of a frame hold-down by mounting a support member detachably supporting the frame hold-down and installing a means pushing the frame hold-down in the direction of a lead frame to the support member. CONSTITUTION:Leaf springs 10 are fitted to a support member 9, and a frame hold-down 11 is supported in a groove formed to the support member 9. When the frame hold-down 11 is replaced with another one 12, the leaf springs 10 are turned in the direction of the arrow in the figure, using mounting pins 13 as pivots, the frame hold-down 11 is taken out from an upper section, and may be replaced with the frame hold-down 12. When a removable hole 12' is shaped previously to the frame hold-down 12, a tool such as forceps is inserted into the removable hole 12', and the frame hold-down 12 can easily be carried out from the support member 9. Since the frame hold-down 11 is pushed against the upper surface of a heater table 2 from an upper section by the leaf springs 10, the frame hold-down 11 is made parallel with the upper surface of the heater table 2 positively, and the so-called single-sided hold-down state of a lead frame is not brought.

9. 发明专利

JPS61120067A Ground fault position detector of gas insulating equipment 失效
标题翻译：气体绝缘设备接地故障位置探测器
公开(公告)号：JPS61120067A
公开(公告)日：1986-06-07
申请号：JP24180184
申请日：1984-11-16
申请人： Toshiba Corp
发明人： MIURA HIROSHI , YAMASHITA SHOJI
IPC分类号： G01R31/02
摘要： PURPOSE: To enable quick detection and indication of the position of ground fault etc. without using power source by detecting arc current generated at the time of ground fault electromagnetically by one coil and moving a display unit and displaying by another coil.
CONSTITUTION: When a coil 10 for detecting ground fault arc detects ground fault arc current, an N pole is generated in a coil 11 for display output on the right of the figure by current that flows in the circuit. Accordingly, when the N pole of a piece of magnet 13 is placed opposite to the coil 11, the piece 13 is moved by magnetic repulsion in the direction of arrow mark 14. Therefore, by indicating displacement of the piece 13, presence of passing of ground fault arc 5 at the site of the detector can be detected visually. Thus, as display is made by detection current of ground fault arc current, a power source becomes unnecessary, and the trouble section is grasped visually, restoration can be made at once.
COPYRIGHT: (C)1986,JPO&Japio
摘要翻译：目的：通过一个线圈电磁地检测接地故障时产生的电弧电流，移动显示单元并显示另一个线圈，可以快速检测和指示接地故障等的位置，而无需使用电源。构成：当用于检测接地故障电弧的线圈10检测到接地故障电弧电流时，在线圈11中产生N极，用于在电路中流动的电流在图的右侧显示输出。因此，当一块磁体13的N极与线圈11相对放置时，片13通过沿箭头标记14的方向的磁性斥力而移动。因此，通过指示片13的位移，检测器现场的接地故障弧5可以视觉检测。因此，当通过接地故障电弧电流的检测电流进行显示时，不需要电源，并且可视地掌握故障部分，可以立即进行恢复。

10. 发明专利

JPH09229310A WATER LEVEL CONTROLLER 失效
公开(公告)号：JPH09229310A
公开(公告)日：1997-09-05
申请号：JP6035596
申请日：1996-02-23
申请人： TOSHIBA CORP
发明人： UDAGAWA KAZUYUKI , CHIHOSHI ATSUSHI , MIURA HIROSHI
IPC分类号： F22D5/34
摘要： PROBLEM TO BE SOLVED: To permit the water level of a reactor maintained within the set value of a predetermined water level while restraining hunting phenomenon in a feed water control system. SOLUTION: A pump flow rate requiring signal is outputted by a water level control unit 7 based on the signal of water level difference between the water level of a reactor and the set value of water level while the opening degree command of a feed water flow rate regulating valve is outputted by a pump flow rate control unit 8 based on the pump flow rate requiring signal from the water level control unit 7. The dead time of the feed water flow rate regulating valve 6 is compensated by a compensating circuit or an advance compensating circuit 9. According to this method, hunting phenomena in a feed water control system can be restrained.

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