MICROPROCESSOR BASED CONTROL SYSTEMS FOR PAPERMACHINES.

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作者：
Grano, Nils
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Soviet Physics, Solid State (English translation of Fizika Tverdogo Tela) | 1976年
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Modern high speed or multipurpose paper machines increase the requirements on control performance. Computer control of paper machines is becoming more or less standard. Adaptability to hierarchical computer control is therefore desired. Required investments for modern production units are skyrocketing making reliability and availability most desired qualities. The paper presents a new all digital microprocessor based bus oriented control system which satisfying these demands also is giving a number of valuable fringe benefits. The system incorporates a new patented method for digital speed measurement which eliminates cumbersome and sometimes inaccurate analog tachometergenerators or combinations of tachometergenerators and pulse transmitters. The control performance of the system is a combination of the dynamic performance for analog control systems with the long term stability and repeatability of digital control systems.
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