Design of Semiconductor Refrigeration Constant Temperature Box for Experiments Based on Single Chip Microcontroller
This article has introduced the design and implementation of semiconductor refrigeration constant temperature Box for experiments based on STC89CS2. Temperature data are collected by DS18B20. Both the current temperature and the set temperature are shown on the LED digital tube. This design has the measurement accuracy to 0.1 V and the set accuracy to 1 V. With two control circuits,one control the heating system,the other control the cooling system. The temperature limits and the control states of semiconductor heater and semiconductor cooler can be changed by key-presses,when temperature is under the lower limit,the semiconductor heater starts to work,oppositely,semiconductor cooler starts to work while temperature is over the upper limit The overall framework,the schematic diagram and the program flow chart are given in this article. The functions of the design are achieved in hardware platform
STC89CS21 DS18B202 semiconductor refrigerating 3 LED digital tube 4 constant temperature BOX5
Wu Yongzhong Li Rongxuan Li Dong
The College of Computer and Information,Hefei University of Technology (HFUT),Hefei 230009,China The College of Computer and Information,Hefei University of Technology(HFUT),Hefei 230009,China
国际会议
南宁
英文
240-243
2010-12-10（万方平台首次上网日期，不代表论文的发表时间）