A REVIEW STUDY ON INSTRUMENTATION AND CONTROL ENGINEERING

2000 Annual Conference Proceedings

Engineering Science & Education Journal, 1997

as well as the need to enhance the availability and operational eficiency of process plants, most companies are no longer able to provide the necessary training inhouse. In addition, the technology base in the subject area is evolving and expanding rapidly, arguably more slowly than the rate at which previously acquired experience is lost due to downsizing, thh' us, leading to a shortage Of personnel who have the-accumulated experience and the right kind ofskills and training. This paper examines the issues involved in developing a university curriculum for this unique and demanding subject area, especially with a dwindling pool Of appropriate school leavers and the prevailing business climate for both vendors /manufdcturers and users ofprocess instrumentation and control systems.

This book and the individual contributions contained in it are protected under copyright by the Publisher (other than as may be noted herein). Notices Knowledge and best practice in this field are constantly changing. As new research and experience broaden our understanding, changes in research methods, professional practices, or medical treatment may become necessary. Practitioners and researchers must always rely on their own experience and knowledge in evaluating and using any information, methods, compounds, or experiments described herein. In using such information or methods they should be mindful of their own safety and the safety of others, including parties for whom they have a professional responsibility.

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Advances in Control Education 1994, 1995

Design of a process control laboratory requires a detailed defmition of the purpose and fonn of laboratory process equipment, the structure of the control system and the system of flexible signal connections. This paper describes the main purposes of process control laboratory. the essential criteria which have influenced the choice of laboratory process equipment, the design of laboratory process control system and the guidelines for designing the signal connections between the laboratory process equipment and its control system.

The 1998 international conference on characterization and metrology for ULSI technology, 1998

Current productivity needs have stimulated development of alternative metrology, control, and equipment maintenance methods. Specifically, sensor applications provide the opportunity to increase productivity, tighten control, reduce scrap, and improve maintenance schedules and procedures. Past experience indicates a complete integrated solution must be provided for sensorbased control to be used successfully in production. In this paper, Integrated Metrology is proposed as the term for an integrated solution that will result in a successful application of sensors for process control. This paper defines and explores the perceived four elements of successful sensor applications: business needs, integration, components, and form. Based upon analysis of existing successful commercially available controllers, the necessary business factors have been determined to be strong, measurable industry-wide business needs whose solution is profitable and feasible. This paper examines why the key aspect of integration is the decision making process. A detailed discussion is provided of the components of most importance to sensor based control: decision-making methods, the 3R's of sensors, and connectivity. A metric for one of the R's (resolution) is proposed to allow focus on this important aspect of measurement. A form for these integrated components which synergistically partitions various aspects of control at the equipment and MES levels to efficiently achieve desired benefits is recommended. ELEMENTS FOR SUCCESS In the past few years, several semiconductor manufacturing companies have attempted to install sensorbased applications to improve productivity and control. In addition, several companies have formed to meet the needs of the industry by providing unique sensor-based solutions and applications assistance. The applications have varied in their level of success. An examination of the applications reveals that 4 elements are required for success. These elements are listed in Table 1. The term "Integrated Metrology" is proposed to signify the integration of all these components into a particular form that meets a business need. In other words, Integrated Metrology is a successful sensor-based controller.

2008

This paper discusses the various methods by which instruments used in industries and process control can be computer-based. Instruments can be connected to computers so that collecting, controlling, and adjusting parameters under the supervision of computer program is facilitated. This paper discusses various methods of data acquisition by which properties exhibited by various instruments can be acquired in an appropriate form, processed, and made ready for the computer environment. This paper also examines the means of transmitting acquired signals to the appropriate interface system, which eventually links the computer system for processing and control. It thereafter concludes by advising the instrument and process control engineers to understand the main principles of communication to ensure proper integration into process control system and industrial environment.