摘要
设计了电容式涡街流量计二次仪表的电路部分,其中包括前置放大电路、滤波电路、整形电路组成的信号调理电路,以MSP430F149单片机为核心的按键接口电路,LCD显示接口电路,以及该二次仪表供电电路的设计。实验证明,该电路能够精确实现对电容式涡街流量信号的控制、处理功能。
The part of hardware circuit of secondary instrument of capacitive vortex flow meter are designed. Signal conditioning circuit Was designed including a preamplifier circuit, filter circuit, and smith shaping circuit. The button interface circuit and LCD display interface circuit were designed by MSP430F149 as the core and the power circuit of secondary instrument was designed. Practice proves that the circuit can realize the signal control and processing of capacitive vortex flow.
出处
《科学技术与工程》
北大核心
2012年第31期8411-8413,共3页
Science Technology and Engineering
基金
国家自然科学基金(61064013)
江西省教育厅科技项目(GJJ11145)
核技术应用教育部工程研究中心开放基金(HJSJYB2010-12)
东华理工大学实验技术研发项目资助
关键词
电容式
涡街
流量计
capacitive vortex flow meter
