摘要
压力是重要的热工参数之一,各种气体、液体的压力测量在生产生活、工业现场、科学实验等领域有着广泛的应用。这里采用STM8S单片机作为主控制单元,提出一种新型数字压力表的设计方法。介绍压阻式压力传感器的测量原理和系统的整体框架,并描述相应的软硬件设计的方法,特别是在软件方面的处理,包括压力采集和标定校准算法。实验结果显示,压力数据显示较为稳定,能够满足基本的精度要求。设计的数字压力表简单,易用,便于携带。
Pressure is one of the important thermal parameters,which is widely used in the field of production,life,indus-trial site,scientific experiments. A new design method of digital pressure gauge based on STM8 S microcontroller as the controlunit is presented in this paper. The measurement principle of piezoresistive pressure sensors and the overall framework of the sys-tem are described. Corresponding methods of hardware and software design are also described in the paper,especially in thedealing with the software,including the algorithm of the acquisition of pressure and calibration. Experimental results show thatpressure data display is stable,which can meet the basic requirements of precision. The designed digital pressure gauge is sim-ple,easy to use and carry.
出处
《现代电子技术》
北大核心
2015年第4期139-141,145,共4页
Modern Electronics Technique
