高精度恒温水浴控制器的设计  

A Design on High Precision Constant Temperature Controller of Water-bath

作　　者：廖任秀[1] 

机构地区：[1]金华职业技术学院,浙江金华321007

出　　处：《金华职业技术学院学报》2011年第3期38-41,27,共4页Journal of Jinhua Polytechnic

摘　　要：根据控制器的工作原理,进行了基于MSP430F133单片机的恒温水浴温度控制器的硬件电路和软件设计。水浴温度的测量由MSP430F133片内自带的高精度模拟比较器、热稳定性好的电容和高精度的参考电阻以及高精度热电阻完成,无需外加芯片。温度控制采用增量式PID控制算法,实现温度的精确控制。实践证明:该控制器电路简单,精度高、稳定性好。It designed the hardware and software of the high precision constant temperature controller of water-bath based on MSP430F133,according to the working principle of the controller.Water bath temperature was measured by the high-precision analog comparator with chip MSP430F133,thermal stability capacitor and high precision reference resistor and high-precision thermal resistance.It did not require external chips.Incremental PID algorithm was used to control temperature,so as to achieve precise temperature control.The controller had a simple circuit with high precision.

关 键 词：模拟比较器 固态继电器 增量式PID 

分 类 号：G642[文化科学—高等教育学]