In the industrial world, the rapid growth in importance of the concepts of total quality control, factory automation, safety, health and environmental management, has created a demand for major developments in measurement and control instrumentation. Process controllers are linked to sensors and actuators and perform the automated operations. Operator keyboards, monitors and printers make it possible to measure and control all process parameters. The design of process instrumentation deals with the choice of the control variables and the implementation of the measurement system on the process. This activity has to be integrated with the design of systems of actuations and process controllers (1). Difficulties in control of a complex final process may occur if certain input-output variables are selected for a given local subsystem. Because of the increasing needs to rationalize and economize production processes and installations, in the last years instruments have evolved from analog systems, measuring and controlling a modest number of plant parameters, to digital systems with a large number of input and output quantities. Increasing interest is especially oriented toward single-chip devices (sensors and actuators) with built-in intelligence (smart devices). They essentially help implement new applications, reducing or eliminating the need for higher-level instruments and controllers. The use of smart devices can help not only to control the processes, but also to monitor and supervise the global production. The acquisition of multiple variables is carried out to archive information, to analyze the production processes and to improve the product quality by means of an optimized management of the plant, as required by the ISO 9000 standard. The overall monitoring allows keeping the plant operating efficiently and safely. The design of industrial smart devices involves the choice of both a suitable transducer/actuator and an infrastructure that ensure its interfacement to a communication network. The growing international market competition requires widely accepted standards, to provide a common interface that facilitates the communication between devices from different suppliers.

Industrial measurement and Control”, WILEY Encyclopedia of Electrical and Electronics Engineering Online, John Wiley & Sons, Inc., Aug 16 ,2007

BUCCI, Giovanni;FIORUCCI, EDOARDO;
2007-01-01

Abstract

In the industrial world, the rapid growth in importance of the concepts of total quality control, factory automation, safety, health and environmental management, has created a demand for major developments in measurement and control instrumentation. Process controllers are linked to sensors and actuators and perform the automated operations. Operator keyboards, monitors and printers make it possible to measure and control all process parameters. The design of process instrumentation deals with the choice of the control variables and the implementation of the measurement system on the process. This activity has to be integrated with the design of systems of actuations and process controllers (1). Difficulties in control of a complex final process may occur if certain input-output variables are selected for a given local subsystem. Because of the increasing needs to rationalize and economize production processes and installations, in the last years instruments have evolved from analog systems, measuring and controlling a modest number of plant parameters, to digital systems with a large number of input and output quantities. Increasing interest is especially oriented toward single-chip devices (sensors and actuators) with built-in intelligence (smart devices). They essentially help implement new applications, reducing or eliminating the need for higher-level instruments and controllers. The use of smart devices can help not only to control the processes, but also to monitor and supervise the global production. The acquisition of multiple variables is carried out to archive information, to analyze the production processes and to improve the product quality by means of an optimized management of the plant, as required by the ISO 9000 standard. The overall monitoring allows keeping the plant operating efficiently and safely. The design of industrial smart devices involves the choice of both a suitable transducer/actuator and an infrastructure that ensure its interfacement to a communication network. The growing international market competition requires widely accepted standards, to provide a common interface that facilitates the communication between devices from different suppliers.
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11697/24023
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