摘要
振弦式传感器在工业建筑领域应用广泛;文中研究了一种基于单线圈式的振弦式传感器的高压激励方法和频率测量方法;根据仪器特点,以STM32为处理器设计了激励电路、钢弦信号整形电路、LCD电路、存储器电路以及其他硬件电路,及其软件设计;实验结果表明,高压激励方法可以有效产生激励信号,测量仪器能够比较准确地测量传感器所发出的频率信号,测量平均相对误差小于1.0%,满足仪器测量要求。
Vibrating wire sensors have a widely application in the industrial construction. A high accuracy frequency measurement with high voltage excitation methodology is presented. Aims to the measurement environment of instrument, the excitation circuit, signal sha ping circuit, LCD and storage interface are developed and the software system is designed based on STM32. The experimental results show that the frequency accuracy is improved with average relative error less than 1.0%.
出处
《计算机测量与控制》
北大核心
2013年第6期1708-1710,共3页
Computer Measurement &Control
基金
重庆市科委项目(KJZH11213)
重庆市教委项目(KJ110731)
关键词
振弦式传感器
频率测量
激振
STM32
vibrating wire sensors frequency measurement
excitation circuit
STM32
