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微机温度实时控制系统,常会因某些因素的影响而使微机出现故障——微机硬件故障和程序运行故障,从而导至系统失控,引起超温。在热处理过程中,这将使材料与工件性能降低,甚至报废。本文针对目前国内所采用的微机控温系统的工作过程,分析了微机出现故障后的系统状态,设计了一种自动定温和超温保护电路,并提供了相应的调试数据。这种电路在实际应用中取得了良好的效果。
Microcomputer temperature real-time control system, often due to the impact of certain factors and the microcomputer failure - microcomputer hardware failure and program operation failure, leading to the system out of control, causing over-temperature. During the heat treatment, this will reduce the performance of materials and workpieces, or even scrapped. In this paper, the working process of the microcomputer temperature control system in our country is analyzed. The system status after the computer failure is analyzed. A self-set temperature and over-temperature protection circuit is designed and the corresponding debugging data is provided. This circuit has achieved good results in practical applications.