摘要
由LM331、80C51单片机及其他外围器件组成数据采集系统,对多路过程参数进行信息采集,不仅能提高系统的抗干扰能力,还可灵活提高数据采集的精度。讨论了ADC对信息采集系统的影响后,对基于VFC的数据采集系统的硬件结构、数据采集控制程序进行设计,系统具有良好的通用性和扩展性,应用范围广泛。
Data acquisition system,which being composed of LM331,80C51 and some other devices,can improve the system＇s anti-interference ability and improve the flexibility of the conversion accuracy.The hardware and software of data acquisition system based on V/F converter were designed after the impact of A/D converter was discussed.Experiments show that the system has good universality and scalability,and it can be used in many fields.
出处
《化工自动化及仪表》
CAS
北大核心
2010年第12期59-62,共4页
Control and Instruments in Chemical Industry
关键词
模数转换器
信息采集
过程参数
压频转换
A/D converter
data acquisition
process parameters
V/F converter
