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MECHATRONIC SYSTEMS AND MATERIALS 2006年 113卷 29-33页

作者： Dambrauskas, A. Karaliunas, B. Shulskis, D. Vilnius Gediminas Tech Univ Dept Automat LT-03227 Vilnius Lithuania

The main flaws of electric arc welds and factors determining the quality of the welded scams are considered in this paper. In practice, welding tools and their control systems are affected by some external factors causing deviation of the weld's quality from the specified values. Currently used control systems of welding tools do not always satisfy the requirements for quality of welded joints. Major principles of developing the adaptive control system of the welding tool are considered here and the developed functional and block diagrams of microprocessor system are presented. General equations describing the welding process are also provided and the obtained transfer function of a closed system is described.

关键词： electric arc welding microprocessor control synthesis of the system simplex search computer-aided simulation variable structure block diagram transient process

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ROBUST microprocessor control OF ROBOT MANIPULATORS

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AUTOMATICA 1987年第3期23卷 373-379页

作者： SPONG, MW THORP, JS KLEINWAKS, JM UNIV ILLINOIS COORDINATED SCI LABURBANAIL 61801 CORNELL UNIV SCH ELECT ENGNITHACANY 14853 SINGER CO BINGHAMTONNY

In this paper the problem of robust tracking for robot manipulators in the presence of uncertainty and input constraints is studied. Using the theory of uncertain dynamical systems, robust non-linear control strategies, with guaranteed tracking properties that can be quantified given bounds on the extent of model uncertainty, sensor noise, input disturbances, etc., are derived. A torque optimization strategy is also utilized to optimize the joint torques in the event of actuator saturation. The algorithm has been implemented using a single Motorola 12 MHz MC68000 microprocessor on a three-link revolute joint manipulator constructed by the School of Mechanical Engineering at Cornell University. Experimental results are presented here showing the feasibility and performance of the control stragegy.

关键词： microprocessor control optimal control Robots robust control saturation control

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A PROGRAMMABLE ACTIVE-R SINE WAVE OSCILLATOR WITH microprocessor control

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IEEE TRANSACTIONS ON INSTRUMENTATION AND MEASUREMENT 1989年第4期38卷 925-927页

作者： SANYAL, SK SARKER, UC NANDI, R Department of Electronics and Telecommunication Engineering Jadavpur University Calcutta India

The design and analysis of a simple active-R oscillator based on a two-pole operational amplifier model are described. The oscillator is tunable by one resistor over a fairly wide range at low sensitivities. A digitally programmable oscillator was derived by replacing the tuner resistor with an array of switched binary weighted resistors. The CMOS switches were activated and controlled by a SDA-UNI-01 microcomputer system based on the 8085 microprocessor. The performance of the programmable oscillator and its extension as a switched frequency-shift-keyed wave generator were verified.

关键词： Resistor Device Component PROGRAMMABLE wave oscillators Oscillators Wave generators sin microprocessor control

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System of thermostatic control on Peltier thermopiles and microprocessor control for a portable NMR relaxometer

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JOURNAL OF MAGNETIC RESONANCE 2002年第2期154卷 176-180页

作者： Anisimov, AV Teplov, VY Silkin, NI Kazan Inst Biochem & Biophys Kazan 420111 Russia Kazan VI Lenin State Univ Dept Phys Kazan 420008 Russia

Liquid equipment for thermostatic control of samples with accuracy better than 0.1degreesC within the temperature range from -20 to +70degreesC is designed for small-sized NMR spectrometers. The difficulty in using this equipment is a thermomodule based on the Peltier effect. The temperature control system is based on a single crystal microcomputer. The equipment fits modern small-sized NMR spectrometers, which facilitates medical and biological studies. (C) 2002 Elsevier Science (USA).

关键词： EQUIPMENT thermostatic control TEMPERATURE control SYSTEM TEMPERATURE RANGE nuclear magnetic resonance spectrometers Peltier effects thermopiles microprocessor control

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microprocessor control of Muscle Relaxation

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IFAC Proceedings Volumes 1981年第2期14卷 3773-3778页

作者： W.A. Brown D.G. Lampard K.C. Ng H.S. Lam M. Haysom N.M. Cass J.R.W. Allan Department of Electrical Engineering Monash University Victoria Australia Royal Children's Hospital Melbourne Victoria Australia General Practitioner Victoria Australia

Feedback control of muscle relaxation is shown to be of practical value in clinical applicatios. An integrated electromyogram monitor has been developed for the measurement of neuromuscular transmission. It is used as the feedback transducer in a control system to administer a relaxant drug. A microprocessor controller has been developed to close the feedback loop. The equipment was developed in the laboratory for use with sheep and the testing of a number of relaxant drugs. It has been successfully applied in the operating theatre and shows promise of being of value in a range of surgical procedures and in intensive care.

关键词： microprocessor control feedback integrated electromyogram neuromuscular transmission relaxant drugs laboratory clinical applications intensive care

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Integrated microprocessor control of a hybrid i.c. engine/battery-electric automotive power train

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Transactions of the Institute of Measurement & control 1990年第3期12卷 128-146页

作者： Masding, P.W. Bumby, J.R. School of Engineering and Applied Science University of Durham South Road Durham DH1 3LE United Kingdom

This paper describes the development of a fully integrated microprocessor control system for a hybrid i. c. -enginelbattery-electric automotive power train. Torque control systems for the internal-combustion engine and the electric-traction motor are designed using digital transfer functions and indirect methods of torque measurement. Root-locus methods are used in all designs to provide fast, critically damped closed-loop response. In all cases simple proportional-plus-integral control proved sufficient to achieve this. An overall cycle speed controller allows the laboratory test system to be exercised over any test driving cycle and offers the ability to carry out sophisticated power sharing and transmission shifting strategies. © 1990, Sage Publications. All rights reserved.

关键词： automotive power train control electric vehicles Hybrid vehicles i.c.engines microprocessor control

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Laboratory in Distributed microprocessor control

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IFAC Proceedings Volumes 1996年第1期29卷 2981-2986页

作者： Peter H. Meckl Daniel Maguire Galen King School of Mechanical Engineering Purdue University West Lafayette IN 47907-1288

This paper describes the laboratory facilities for a course on microprocessors in Electromechanical Systems. This course is designed to introduce mechanical engineers to basic concepts of microprocessor architectures, programming, and interfacing, with special focus on implementation of digital controllers for real-world electromechanical systems. Laboratory facilities at each lab station include a Pentium-based PC for code development and an 80188-based single board computer (SBC) for real-time embedded control. Since both the PC and the SBC have their own analog I/O capabilities, true distributed control is possible, with the PC acting as process monitor, plant simulator, or control supervisor, capable of downloading new controller setpoints to the SBC as process conditions change.

关键词： Laboratory techniques microprocessor control Distributed control

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Real-Time microprocessor control Laboratory

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IFAC Proceedings Volumes 1993年第2期26卷 761-764页

作者： P.H. Meckl R. Shoureshi School of Mechanical Engineering Purdue University 1288 Mechanical Engineering Building West Lafayette IN 47907-1288 USA

microprocessors are becoming an essential control component of many industrial products, thereby enhancing performance and functional capability at low cost. Therefore, it is increasingly Important that mechanical engineers be exposed to microprocessor technology. This paper describes a graduate-level. course on microprocessors in electromechanical systems, focusing on several of the laboratory projects involving real-time control.

关键词： microprocessor control Laboratory

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High-precision medium power laser diode driver with microprocessor-based control system

High-precision medium power laser diode driver with micropro...

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International Conference on Laser Optics (ICLO)

作者： Chkalov, R. V. Pokryshkin, N. S. Gerke, M. N. Khorkov, K. S. Kochuev, D. A. Prokoshev, V. G. Vladimir State Univ Vladimir Russia

The structure of medium power laser diode packages and its application areas are considered. Main principles, working parameters and operation features of the laser diode driver with a microprocessor-based control sys... 详细信息

ISBN: (纸本)9781538636121

关键词： TEC controller source controller laser diode driver microprocessor control medium power diodes

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microprocessor-based fuzzy decentralized control of 2-D piezo-driven system's

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IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS 2008年第3期55卷 1411-1420页

作者： Hwang, Chih-Lyang Tamkang Univ Dept Elect Engn Tamsui 25137 Taiwan

In this paper, the trajectory tracking of a 2-D piezo-driven system (2DPDS) using microprocessor-based fuzzy decentralized control (MBFDC) is developed. It is known that the piezoelectric actuator contains hysteresis, which is not one-to-one mapping and memoryless nonlinearity. Due to this nonlinearity and the coupling characteristic of the 2DPDS, an effective decentralized control is difficult to design. From the very beginning, the suitable coefficients of switching surface are assigned to stabilize the dynamics of switching surface and to shape the response of tracking error. Based on the data of input/output, two scaling factors are employed to normalize the switching surface and its derivative. According to the concept of if-then rule, an appropriate rule table for the ith subsystem is then achieved. This table is skew symmetric about the diagonal line;the absolute value of this table is proportional to the distance to the diagonal line. According to the system stability, the output-scaling factor is determined. Finally, a sequence of experiments including the trajectory tracking using MBFDC, proportional-integral-differential control, and classic fuzzy control is carried out to confirm the usefulness of the proposed control system.

关键词： classic fuzzy control (CFC) decentralized control fuzzy sliding-mode control (FSMC) microprocessor control proportional-integral-differential (PID) control 2-D piezo-driven system (2DPDS)

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