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介绍了高精度微型机控制双油槽温控系统，叙述了以 ＰＣ５８６为上位机，以 ＭＣＳ－５１单片机为下位机的控制系统的软、硬件的结构、算法及其性能．其精度可达到０．０５℃，超调量很小，进而实现对温度传感器的准确标定．在实际工作过程中完全能够满足油田对温度传感器进行标定的需要．
This paper introduces the double tank temperature control system of high precision microcomputer control, describes the software and hardware structure, algorithm and performance of the control system with PC586 as PC and MCS-51 SCM as PC. Its accuracy can reach 0.05 ℃, overshoot is very small, and then realize the accurate calibration of the temperature sensor. In the actual work process can fully meet the oil field temperature sensor calibration needs.