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在过程控制领域内,随着微处理机的不断普及,国外各大仪表厂商在竞相发展集中分散型控制系统的同时,又十分重视原有基地式简易仪表的发展和更新换代.特别是近几年来,随着单片机的迅猛发展和外围电路的性能提高,价格下降,为简易电子调节仪表的智能化创造了十分有利的条件.根据目前国外发展情况,简易数字调节器的发展基本有两种趋势:
In the field of process control, with the continuous popularization of microprocessors, foreign major instrument manufacturers compete for the development of centralized and decentralized control systems, and attach great importance to the development and upgrading of the original base-type simple meters, especially in recent years In recent years, with the rapid development of SCM and the improvement of the performance of peripheral circuits, the price drop has created very favorable conditions for the intelligentization of simple electronic regulating instruments.According to the current overseas developments, there are basically two trends in the development of simple digital regulators :