Abstract
The demand for high-quality product, the flexibility to share equipment to manufacture several products and other factors have moved the food industries towards increased automation. Control system vendors have responded to these needs by providing appropriate hardware and modular software capability so the process engineer can concentrate on the process control strategy rather than the control system design. Also, the development of sensors that measure product quality and subjective properties such as taste, smell, etc., is providing new vistas in automation. This paper reviews the trends in sensors and control systems for the food processing industry. The advantages offered by the distributed control system (DCS) so far enjoyed by large, continuous process plants are now available to small users and to batch processing industries. Examples of DCS applications in the food industry are described.
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