摘要
分析了量热仪的研究现状和未来发展趋势;设计了石英晶体量热仪测温系统硬件电路,确定了系统总体结构;构造了频率测量电路、单片机及存储器电路、水位检测电路、点火丝检测电路、时钟脉冲产生电路;给出了系统选型的依据,阐述了其中主要元器件的功能、结构、特性与其它部分的连接方式。实践表明,系统达到了较高的精度和稳定性。
The research present situation and future developing tendency of the calorimeter are analyzed. The hardware circuit of the temperature-measuring system in the quartz crystal calorimeter is designed and the overall structure of the system is determined. The frequency-measuring circuit, chip-microprocessor and memory circuit, water-levelexamining circuit, igniting-thread-examining circuit, and clock-pulse-producing circuit are constructed. The basis of the system choice is given, and to the main elements of the system, their function, structure, properties, and connecting ways with other parts are expounded. The practice shows that the system has high precision and stabilization.
出处
《中国仪器仪表》
2007年第2期39-43,共5页
China Instrumentation
基金
教育部科学技术研究重点项目(2001224)
关键词
五英晶体
量热仪
单片机
Quartz crystal Calorimeter Chip-microprocessor
