摘要
文中描述了具有多路、多类型混合信号采集系统的设计。介绍了采用标记法保证采集的有效数字量与其他数据可靠分离,提供了采用线性光耦对模拟信号进行隔离的电路设计,多路数字量采集的总线复用电路设计和对脉冲量、阶跃量采集电路的设计,并给出了数字量采集的FPGA程序设计。
This paper described the design of multi-channel and multi-type signal collection system. It introduced the way of separating valid digital data from the others credibly with mark. The paper provided the design of isolated circuit for analog signal with linear photocoupler, sharing reuse bus circuit for muhi-channel digital signal collection and collecting circuit for pulsed and step signal. And it also provided the FPGA program of digital signal collection.
出处
《仪表技术与传感器》
CSCD
北大核心
2008年第12期48-51,共4页
Instrument Technique and Sensor
基金
国家自然科学基金(50675213)
关键词
数字量采集
串行接口
FPGA
信号隔离
digital signal collection
serial interface
FPGA
signal isolation
