| 基于温度传感器AD590的电热锅炉温度控制器 |
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| 引用本文： | 苏茜,李小京. 基于温度传感器AD590的电热锅炉温度控制器[J]. 仪器仪表用户, 2012, 19(4): 28-31 |
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| 作者姓名： | 苏茜 李小京 |
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| 作者单位： | 天津工业大学电气工程与自动化学院,天津,300387 |
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| 摘 要： | 介绍了一种以AT89S51单片机为核心的温度控制器的设计，在该设计中采用高精度的温度传感器ADS90对电热锅炉的温度进行实时精确测量，用超低温漂移的高精度运算放大器OP07将温度-电压信号进行放大，再送入12位的AD574A进行A＼D转换。从而实现自动检测。实时显示及越限报警。控制部分采用PID算法。实时更新PWM控制输出参数，控制可控硅的通断时间。最终实现对炉温的高精度控制。给出了温度计设计方法及其实现方案并验证可行。
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| 关 键 词： | 单片机 越限报警 PID算法 可控硅 |
A temperature controller of the electric heating boiler based on the temperature sensor AD590 |
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| SU Qian , LI Xiao-jing. A temperature controller of the electric heating boiler based on the temperature sensor AD590[J]. Electronic Instrumentation Customer, 2012, 19(4): 28-31 |
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| Authors: | SU Qian LI Xiao-jing |
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| Affiliation: | (School of Electrical Engineering and Automation,Tianjin Polytechnic University,Tianjin 300387,China) |
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| Abstract: | A temperature controller with AT89S51 as the core is designed.A high-precision temperature sensor AD590 is used in the real-time temperature accurate measurement of electric heating boiler.A high-precision operational amplifier OP07 with an ultra-low temperature drift amplifies temperature-voltage signals and sends them to AD574A for the A/D conversion to achieve automatic detection,real-time display and off-limit alarm.PID is used in the control part.A high-precision temperature control is achieved by controlling output parameters with real-time updating PWM and by controlling the on-off time of controllable Silicon.Procedures of the design and implementation schemes show that the system is used successfully. |
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| Keywords: | single-chip microcomputer off-limit alarm PID controllable silicon |
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