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SEAISI Quarterly (South East Asia Iron and Steel Institute) 2006年第3期35卷 60-64页

作者： Okubo, Hiroyuki Yamano, Masaki Nakamura, Masahiro Plant Control Engineering Section Sumitomo Metal Industries Ltd. Kashima Japan Instrumentation Technology Development Section Sumitomo Metal Industries Ltd. Kashima Japan

A lamb wave testing technique has been used for on-line defect inspection of steel strips. The conventional lamb wave testing, generally, has the following two large problems: one is the wide dead zone of the strip edges, another is misdetections by electrical noise. The new testing method was developed to solve the above two problems and is explained in this paper. The new testing system collects received signals and changes them into two-dimensional signals. It can distinguish the defect signals from the other signals by the two-dimensional signal characteristics and by means of using if-then rule logic. As this new method does not need an inspection gate, it can reduce the dead zone and the detection which made a mistake caused by the electrical noise. The measurement principle, the algorithm of the signal processing and the distinction logic are described in this paper. The laboratory testing leads the results that the new method can reduce the dead zone of the strip edge from 200mm to 75mm.

关键词： Steel analysis

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Rod control system oriented for improving operational capability of BWR plants

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Hitachi Review 2005年第3期54卷 131-135页

作者： Ishii, Kazuhiko Nozaki, Takeshi Kohara, Kohei Udono, Shigeru Miyashita, Katsuhiko Hitachi Ltd. Nuclear Power Control and Instrumentation Systems Engineering Department Power Control Systems Division Information and Telecommunication Systems Nuclear Plant Control and Instrumentation Engineering Department Control and Instrumentation Design Section Hitachi Works Nuclear Power Service Engineering Development Department Nuclear Systems Division Service Project Group

An RMCS (reactor manual control system) and RPIS (rod position information system), which are next-gene ration products, were developed to assist in stable operation of existing BWR (boiling water reactor) plants. Installation tests of these systems were completed at The Tokyo Electric Power Company Incorporated, Kashiwazaki Kariwa Nuclear Power Station Unit 4, and The Chugoku Electric Power Co., Inc., Shimane Nuclear Power Station Unit 2. The new systems started operation at both of plants in June 2005. The basic concept of these systems is to improve performance [avoidance of LCO (limiting condition of operation)] by maintaining compatibility with existing facilities and by utilizing the functions of a redundant decentralized system. It is a system that monitors the positions of control rods while operating them manually in the BWR plants. A soft logic method was created by adopting the latest controller and optical data transmissions that use the latest IC (CMOS: complementary metal-oxide semiconductor). This method is used in place of the logic method, which uses IC technology (TTL: transistor-transistor logic).

关键词： Boiling water reactors

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A large scale implementation of human factors engineering for the lungmen nuclear power project

A large scale implementation of human factors engineering fo...

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American Nuclear Society 4th International Topical Meeting on Nuclear Plant instrumentation, control and Human Machine Interface Technology

作者： Wu, Tung-Ming Lee, Jeen-Yee Instrumentation and Control Section Department of Nuclear Engineering Taiwan Power Company 20F 242 Roosevelt Rd. Sec. 3 Taipei City 100 Taiwan

ISBN: (纸本)0894486888

When it was decided to adopt digital instrumentation and control systems for the Lungmen nuclear power project, advances in human factors engineering associated with this advanced technology were adopted. The need for a well-planned human factors engineering program for the project was identified at the very beginning of the project. Compliance with the prescribed process and requirements in Revision 0 of NUREG-0711 on Human Factors engineering (HFE) Program Review Model was agreed on as the committed target for the Lungmen project. Comprehensive HFE Implementation Plans, based on the Advanced Boiling Water Reactor Standard Design, were established for implementation in the project. This paper provides an overview of the planning and subsequent implementation of the HFE program elements as prescribed in NUREG-0711, Revision 0, from planning, analysis, design, through verification and validation (V&V) phases. Extensive efforts have been made by Taipower and General Electric Nuclear Energy (GENE), supported by an independent review team, also serving as consultant, to help assure compliance with the HFE process and requirements. Results to date and implications for going forward from this process are also presented.

关键词： Nuclear power plants

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Driving mechanism on magnetostrictive type electromagnetic acoustic transducer for symmetrical vertical-mode Lamb wave and for shear horizontal-mode plate wave

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ULTRASONICS 1996年第7期34卷 729-736页

作者： Murayama, R Sumitomo Metal Industries Ltd. Control System Engineering Division Instrumentation Technology Development Section 1-8 Fuso-cho Amagasaki 660 Japan

The properties of electromagnetic acoustic transducers (EMATs) for using the symmetrical vertical mode-(S-0) Lamb wave and the shear horizontal fundamental mode-(SH0) plate wave were experimentally studied. The EMAT, consisting of a meandering coil and an electromagnet, can effectively transmit and receive the S-0 mode Lamb wave and the SH0-mode plate wave in a thin metal plate. For ferromagnetic materials, such as steels, the magnetostriction is important for the transduction. The wave amplitude is not proportional to the static field strength, but is dependent on the magnetostrictive properties of the material. In this study, the amplitude and the phase of the S-0 mode Lamb wave and SH0 mode plate wave generated by the EMATs are measured while changing the static field strength to the sheets. The amplitude of the S-0-mode Lamb wave in a low carbon steel sheet initially decreases with a static field to the minimum value, then increases again accompanying the phase inversion by 180 degrees and finally decreases without any phase inversion. The amplitude of the SH0 mode plate wave in a low carbon steel sheet initially increases to the maximum value with the static field, then decreases to the minumum value and increases again accompanied by a phase inversion of about 90 degrees. These data were discussed on the basis of the magnetostrictive curve to the magnetizing current of an electromagnet in low carbon steel sheets.

关键词： electromagnetic acoustic transducer magnetostrictive Lamb wave shear horizontal wave low carbon steel sheets ferromagnetic

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Head surface digitization and registration: A method for mapping positions on the head onto magnetic resonance images

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Brain Topography 1994年第3期6卷 185-192页

作者： Wang, Binseng Toro, Camilo Zeffiro, Thomas A. Hallett, Mark Biomedical Engineering and Instrumentation Program National Center for Research Resources and Human Motor Control Section Medical Neurology Branch National Institute of Neurological Disorders and Stroke National Institutes of Health Bethesda 20892 MD United States

We have developed a method for mapping positions on the head, such as anatomical landmarks, electrode locations, and stimulation sites, onto magnetic resonance (MR) images of the head. This method is based on the registration of two representations of the head surface: a series of contours obtained from MR images and a set of points measured from the head. The three-dimensional coordinates of each head point were acquired with the use of a magnetic digitizer, whose source was removed from the equipment and mounted on top of the subject's head. This arrangement seemed less uncomfortable for the subject than head immobilization and allowed the acquisition of many points without compromising the precision of the measurements. The digitized head surface was registered to MR image head contours using a surface registration algorithm. The registration provided the rotation and translation parameters needed for mapping head positions onto MR images. The precision of this mapping method has been estimated to be in the range of 3 to 8 mm. This method has been used to map dipole sources in electroencephalography and magnetoencephalography and to impose maps of scalp sites used in transcranial magnetic stimulation onto MR and PET images of the brain. © 1994 Human Sciences Press, Inc.

关键词： Head positions Head surface digitization Mapping positions onto images MRI Surface registration

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Cortical magnetic and electric fields associated with voluntary finger movements

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Brain Topography 1994年第3期6卷 175-183页

作者： Nagamine, Takatshi Toro, Camilo Balish, Marshall Deuschr, Günther Wang, Binseng Sato, Susumu Shibasaki, Hiroshi Hallett, Mark Department of Brain Pathophysiology Kyoto University School of Medicine Kyoto 606 Sakyo-ku Japan Human Motor Control Section Medical Neurology Branch National Institute of Neurological Disorders and Stroke National Institutes of Health Bethesda MD United States Neurophysiology Unit Epilepsy Research Branch National Institute of Neurological Disorders and Stroke National Institutes of Health Bethesda MD United States Biomedical Engineering and Instrumentation Program National Center for Research Resources National Institutes of Health Bethesda MD United States State University of Campinas Campinas SP 13081 Brazil

Multichannel recordings of both movement-related magnetic fields (MRMFs) and movement-related cortical potentials (MRCPs) were simultaneously recorded in association with voluntary unilateral self-paced index finger abduction movement in two normal volunteers. 1) Slow magnetic field (readiness field;RF) can be detected several hundred msec before the movement onset, and its field distribution indicates the existence of the largest generator source over the contralateral primary motor area. Taken together with the vertex-maximal Bereitschaftspotential which corresponds to the earlier part of the RF, the complexity of this magnetic field suggested by relatively low correlation value in single dipole model indicates the co-activation of other underlying generators besides this largest dipole. 2) The utilization of MRMF with MRCP facilitates the separation of two distinct electrophysiological events in proximity to the movement onset, which are difficult to be determined by the technique of MRCP only. Those are the motor field (MF) and the movement evoked field I (MEFI) in MRMF, and the parietal peak motor potential (ppMP) and the frontal peak motor potential (fpMP) in MRCP, which occur approximately 20 and 100 msec after EMG onset, respectively. These two subcomponents may imply the culmination of motor cortex and sensory feedback activation, respectively. Combined study of MRMF and MRCP will provide better definition of cortical events related to voluntary movement than the study of either modality alone. © 1994 Human Sciences Press, Inc.

关键词： Magnetoencephalography Motor field Movement evoked field Movement-related cortical potential Movement-related magnetic field Readiness field

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Sonomicrometric studies on the effects of long-term pumping of cardiac assist device on the bulk and regional mechanics of the normal left ventricle in goat

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Bio-Medical Materials and engineering 1992年第3期2卷 139-153页

作者： Nakamura, Takao Hayashi, Kozaburo Seki, Junji Fukuda, Sachito Noda, Hiroyuki Nakatani, Takeshi Takano, Hisateru Akutsu, Tetsuzo Laboratory of Biomedical Control Section of Scientific Instrumentation and Control Research Institute of Electronics Science and Hokkaido University Sapporo 060 Japan Departments of Biomedical Engineering and Artificial Organs National Cardiovascular Center ResearchInstitute Osaka 565 Suita Japan Departments of Thoracic Surgery Osaka Medical College Takatsuki 569 Osaka Japan

Pneumatically driven, diaphragm type left ventricular assist devices (LV ADs) were implanted into 2 goats with normal hearts for approximately 1 month to study the effects of long-term pumping of LV AD on the cardiac mechanics. One sham-operated goat was used to obtain control data. Diameters and myocardial segment lengths of the left ventricle were measured with an ultrasonic displacement meter to calculate the bulk mechanical work (BMW) and regional myocardial mechanical work (RMW), respectively. The LVAD was pumped in the 2:1 drive mode (one counterpulsated pumping in every two cardiac cycles), and was temporarily driven in the 1:1 mode (one pumping in every cardiac cycle or stopped to obtain the data under these conditions. During the second half of the post-operative period while the animal condition was stable, the BMW in the 2:1 and 1:1 modes were approximately 59% and 72% of that observed under the temporary pump-off condition (0.22 W/(lOO g)), respectively. The RMW in the 2:1 and 1:1 modes were 69% and 74% of that obtained during pump-off (6.2 mW/cm3), respectively. The myocyte diameter in the subendocardial layer was reduced by unloading effect of I-month pumping, whereas those in middle and subepicardial layer showed little change. © 1992 Pergamon Press Ltd.

关键词： Bulk mechanical work Chronic experiment Left ventricular assist device Regional mechanical work Ultrasonic displacement meter

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The Quality control System of Sintering Plant at Kashima Steel Works

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IFAC Proceedings Volumes 1983年第15期16卷 347-355页

作者： o. Arai A. Yamamoto T. Joko K. Inada S. Yumoto Instrumentation and Control Engineering Section Kashima Steel Works Sumitomo Metal Industries Ltd. Ibaraki 314 Japan Iron-making Control Section Kashima Steel Works Sumitomo Metal Industries Ltd. Ibaraki 314 Japan Instrumentation and Control Technology Department Central Research Laboratory Sumitomo Metal Industries Ltd. Hyogo 660 Japan System Planning Department Kahima Steel Works Sumitomo Metal Industries Ltd. Ibaraki 314 Japan

In recent years, the quality control of sintered ore has become more and more important for stable operation of modern blast furnaces where the sinter ratio of feedstock material exceeds 50%. The quality control system of sintering plant has been developed by SMI (Sumitomo Metal Industries, Ltd.), which consists of the measurement systems of free carbon and FeO content in raw materials, the control system of particle distribution of crushed coke and the FeO content in sintered ore. It's well known that the conventional batch sampling method has such limitations for quality control of sintered ore as its poor sampling frequency and time lag before result is acquired. In the past several years, SMI has developed the sensors and control system of sintered ore with satisfactory results. Our research in those several years, the following results are attained. (1) There is close relation between indices of ROI (Reduction and Disintegration Index) and TI (Tumbler Index) of sintered products and the ratio of smaller particle size of crushed coke than 1 mm. (2) FeO content of products is controllable by regulating the coke ratio in relation to the FeD content of raw materials and products. (3) FeO content can be controlled more accurately by regulating the coke ratio in which the effect of free carbon content of raw materials is corrected. From those facts, the following measurement systems are developed. (1) Continuous FeO measurement meter for raw materials ----- The principle of FeD measurement meter consists in inductance change of detecting coil by the FeD content of raw materials. (2) Continuous FeO measurement meter for sintered products. (3) Particle distribution measurement system of crushed coke ----- This system uses an optical pattern recognition method. (4) Free carbon content measurement system of raw materials ----- This system estimates the total carbon consumption by calculating the data of flue gas volume and components. The recent operation has obtained th

关键词： Sintering plant RDI TI Magnetite Meter Sintered Products Raw Materials Coke Breeze Particle Size Distribution Free carbon content Quality control

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IS AUTOMATION THE MAGIC POTION FOR MANNING PROBLEMS

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NAVAL ENGINEERS JOURNAL 1982年第2期94卷 127-136页

作者： MELLIS, JG PLATO, AI REIN, RJ James G. Mellis:attended Central Institute in Kansas City Mo. where he graduated in Electronic Engineering Technology. He later attended the University of Minn. in Minneapolis. At present he works in the Manning and Controls Integration Section of the Naval Sea Systems Command. Mr. Mellis is responsible for developing manpower requirements for ship design and for the coordination of shipboard automation designs with the U.S. Navy's manpower policies and availability. Mr. Mellis is currently developing manpower requirements for the U.S. Navy's DDGX ship design. In this capacity he has examined proposals for shipboard manpower reductions through the use of automation and remote control techniques. Another project where Mr. Mellis is heavily engaged in is the Ship Systems Engineering Standards (SSES) development. Mr. Mellis is the assistant project manager for the test and evaluation and producibility aspects of the SSES project. Previously prior to his employment with NAVSEA Mr. Mellis worked for General Dynamics/Electronic Division as a Senior Field Engineer on the Apollo Instrumentation Ships (i.e. Vanguard Restone Mercury). He was responsible for Central Data Processing Systems on the three ships. Artis I. Plato:is the Head of the Manning and Controls Integration Section of the Naval Sea Systems Command (NAVSEA). He is responsible for the development of accurate manpower requirements for all new construction and major overhaul ship projects for the U.S. NAVY. In addition Mr. Plato must coordinate shipboard controls integration and automation aspects with manpower requirements to insure that a compatible solution is developed. Mr. Plato began his professional career in 1956 at the New York Naval Shipyard. There he worked in the Internal Combustion Engine and Shipboard Elevator Section. During 1957 and 1958 he was called up for active duty with the U.S. Army Corps of Engineers. He served in Europe with various Construction Engineers units. After release from active duty he returned to the shipyard. In 19

This paper examines the recent experience in the UNITED STATES NAVY where automation has been introduced into new ship designs. While other attributes are recognized in the introduction of automated shipboard systems, such as the ability to respond more quickly in combat situations, this paper focuses on the effects of automation upon ship manpower requirements. Specific examples show that expected reductions in manning were not achieved in recent ship designs where automation was incorporated for that purpose. While the use of shipboard automation is not without its critics, the U.S. Fleet appears to have accepted the concept. User feedback addresses the issues of reliability, the provisions for backup systems, the need for better qualified personnel and the concern about maintenance workload. The authors provide specific recommendations for improved guidance to ship designers to more effectively apply automation in the ship design process.

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Education and Training Schemes for the Promotion of Appropriate Skills

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IFAC Proceedings Volumes 1979年第6期12卷 299-303页

作者： M.A.R. Ghonaimy A.G. Hamdy Computer and Control Section Faculty of Engineering Ain Shams University Cairo Egypt Instrumentation and Control Department Egyptian Iron and Steel Company Egypt

In this paper, education and training schemes needed to achieve a certain level of technological development is presented. The general strategy will be introduced first, then specific experiences of both professional educational organizations and industrial organizations will be given in some details. A discussion about the role and importance of education in information systems will be also presented.

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