基于DSP芯片的高精度恒温控制系统设计
发布时间：2018-07-22 15:12
【摘要】：以TMS320F28335处理器为控制核心设计了一个恒温控制系统,该系统由温度测量与采集、半导体制冷片驱动、显示和存储等模块组成。采用高精度测温仪采集温度数据,温度偏差经过PID算法处理控制程控电源输出直流电流来调节半导体制冷片的制冷量,实现恒温箱的温度控制。实验结果表明:设定值为20℃时,系统的过渡过程小于2 h,稳态时温度波动小于0.03℃。该系统可被用来控制恒温箱,且具有能耗小、体积小、易搬运、成本低、操作方便等优点。
[Abstract]:A constant temperature control system is designed with TMS320F28335 processor as the control core. The system is composed of temperature measurement and acquisition module, semiconductor refrigeration chip driver, display and storage module. The temperature data are collected by high precision thermometer and the temperature deviation is controlled by pid algorithm to control the output DC current of the programmable power supply to adjust the refrigerating capacity of the semiconductor refrigerant and to realize the temperature control of the thermostat. The experimental results show that the transition process of the system is less than 2 h and the temperature fluctuation is less than 0.03 鈩，
本文编号：2137868
[Abstract]:A constant temperature control system is designed with TMS320F28335 processor as the control core. The system is composed of temperature measurement and acquisition module, semiconductor refrigeration chip driver, display and storage module. The temperature data are collected by high precision thermometer and the temperature deviation is controlled by pid algorithm to control the output DC current of the programmable power supply to adjust the refrigerating capacity of the semiconductor refrigerant and to realize the temperature control of the thermostat. The experimental results show that the transition process of the system is less than 2 h and the temperature fluctuation is less than 0.03 鈩，
本文编号：2137868
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