介紹了如何應用單片機使溫度測控系統中的測量和控制智能化。本系統的核心部件是
MSP430F14X 單片機。首先建立控溫模型，通過硬件的合理配置及用軟件選擇合適的加熱模式，使控制滿足模型中不同階段的要求。系統的采集模塊采用了熱敏電阻PT100 作為測溫組件，而控制模塊則采用光隔通過控制可控硅的導通與截止，從而控制加熱電壓的通與斷，使控制具有靈敏、可靠、抗干擾能力強等優點。本文重點闡述了系統的硬件構成、各部分的主要作用及系統軟件的設計過程。
關鍵詞： MSP430F14X； 模型曲線；加熱模式； 光隔； PT100

The application of the single-chip computer to the control of temperature LIU Ya-li 13 , TAN Zhen-hua 23 , GAO Shi-wei 13 , GUO Yu-hui 13 1 Institute of Modern Physics, Chinese Academy Science , LanZhou , 730000, China 2 Cold and Arid Regions Environmental and Engineering Research Institute, Chinese Academy of Sciences, LanZhou , 730000, China 3 Graduate School of the Chinese Academy of Science , Beijing , 100039, China Abstract: It studies how to make the measurement and control of temperature of a system automation by a single-chip computer . The core of the system is MSP430F14X single-chip computer. The first is the foundation of a model . Through reasonable equipment of hardware and appropriate selection of heating model by the design of software to make the control meet the demands of different phases of the control model .The collection module of the system uses thermistor PT100 as the element of the temperature measurement , and the control module uses the optical shutter . The heating voltage is controlled by optical shutter . The control has the advantages of sensitive and dependable and strong ability of resisting disturbance . It expounds emphatically the hardware structure of the system, the main function, and the process of the system software design .
Key Words: MSP430F14X; model curve ; heating mode ; optical shutter ; PT100